Jens-Petter Andreassen
73594209
Kjemi 4, 4.302, Gløshaugen, Sem Sælands vei 6
Om
Jeg er instituttleder for kjemisk prosessteknologi (IKP). Ved IKP tar vi kjemien fra laboratorieskala til storskala industriell produksjon. Vi studerer grunnleggende kjemiske reaksjoner, og hvordan vi kan påvirke hastigheten til disse, for å gjøre prosessene mer effektive. Dette betinger forståelse av kjemi og materialer på nanonivå, grenseflater mellom faste stoffer, væsker og gasser, og hvordan dette påvirker utvekslingen av varme og masse i et prosessanlegg. Med denne kunnskapen kan vi sette opp matematiske modeller og simulere ulike prosesser i stor skala, som vi kan sammenligne eksperimentelt i en omfattende utstyrspark. Vi har tatt et strategisk valg om å satse på bærekraftige løsninger for fremtiden. Dette gjør at vi nå i økende grad også jobber med hvordan vi kan bruke biologisk råstoff og biokjemi til å utvikle kjemikalier, bioenergi og nye materialer.
Når jeg ikke er instituttleder er jeg professor ved instituttet, med spesialkompetanse i industriell krystallisasjon. I krystallisasjonsgruppen studerer vi utfelling og dannelse av faste krystallinske materialer knyttet til industriell produksjon, for eksempel farmasøytiske produkter eller mineralutfellinger. Krystallenes størrelse og form er viktig for separasjonen av og egenskapene til det endelige produktet, og derfor gjør vi grunnleggende forskning på krystallvekstfenomener. Vi samarbeider med industribedrifter, men gjør også grunnforskningsprosjekter innen mineralutfelling i biologiske systemer, som for eksempel hvordan bein dannes i menneskekroppen.
Publikasjoner
2021
-
Jenssen, Ina Beate;
Bøckman, Oluf;
Andreassen, Jens-Petter;
Ucar, Seniz.
(2021)
The Effect of Reaction Conditions and Presence of Magnesium on the Crystallization of Nickel Sulfate.
Crystals.
volum 11 (12).
Vitenskapelig artikkel
-
Jenssen, Ina Beate;
Ucar, Seniz;
Dotterud, Ole Morten;
Bøckman, Oluf;
Andreassen, Jens-Petter.
(2021)
Investigating the effects of process parameters on the filtration performance of ferric hydroxide in a continuous MSMPR reactor.
Hydrometallurgy.
volum 202.
Vitenskapelig artikkel
2020
-
Antony, Jibin;
Raghunathan, Karthik;
Munir, Sarmad;
Andreassen, Jens-Petter;
Bandyopadhyay, Sulalit.
(2020)
Tuning and tracking the growth of gold nanoparticles synthesized using binary surfactant mixtures.
Nanoscale Advances.
volum 2(5).
Vitenskapelig artikkel
-
Jenssen, Ina Beate;
Ucar, Seniz;
Bøckman, Oluf;
Dotterud, Ole Morten;
Andreassen, Jens-Petter.
(2020)
Impurity Uptake During Cooling Crystallization of Nickel Sulfate.
Rare Metal Technology 2020.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Raghunathan, Karthik;
Antony, Jibin;
Munir, Sarmad;
Andreassen, Jens-Petter;
Bandyopadhyay, Sulalit.
(2020)
Tuning and tracking the growth of gold nanoparticles synthesized using binary surfactant mixtures.
Nanoscale Advances.
volum 2 (5).
Vitenskapelig artikkel
-
Shaddel, Sina;
Grini, Tonje;
Andreassen, Jens-Petter;
Østerhus, Stein Wold;
Ucar, Seniz.
(2020)
Crystallization kinetics and growth of struvite crystals by seawater versus magnesium chloride as magnesium source: Towards enhancing sustainability and economics of struvite crystallization.
Chemosphere.
volum 256.
Vitenskapelig artikkel
-
Shaddel, Sina;
Grini, Tonje;
Ucar, Seniz;
Azrague, Kamal;
Andreassen, Jens-Petter;
Østerhus, Stein Wold.
(2020)
Struvite crystallization by using raw seawater: Improving economics and environmental footprint while maintaining phosphorus recovery and product quality.
Water Research.
volum 173.
Vitenskapelig artikkel
2019
-
Shaddel, Sina;
Ucar, Seniz;
Andreassen, Jens-Petter;
Østerhus, Stein Wold.
(2019)
Engineering of struvite crystals by regulating supersaturation – Correlation with phosphorus recovery, crystal morphology and process efficiency.
Journal of Environmental Chemical Engineering.
volum 7 (1).
Vitenskapelig artikkel
-
Shaddel, Sina;
Ucar, Seniz;
Andreassen, Jens-Petter;
Østerhus, Stein Wold.
(2019)
Enhancing efficiency and economy of phosphorus recovery process by customizing the product based on sidestream characteristics.
Water Science and Technology.
volum 79 (9).
Vitenskapelig artikkel
-
Ucar, Seniz;
Bjørnøy, Sindre Hove;
Bassett, David;
Strand, Berit Løkensgard;
Sikorski, Pawel;
Andreassen, Jens-Petter.
(2019)
Formation of Hydroxyapatite via Transformation of Amorphous Calcium Phosphate in the Presence of Alginate Additives.
Crystal Growth & Design.
volum 19 (12).
Vitenskapelig artikkel
-
Wang, Lijuan;
Andreassen, Jens-Petter;
Ucar, Seniz.
(2019)
Precipitation of silver particles with controlled morphologies from aqueous solutions.
CrysteEngComm.
volum 22 (3).
Vitenskapelig artikkel
2018
-
Bandyopadhyay, Sulalit;
McDonagh, Birgitte Hjelmeland;
Singh, Gurvinder;
Raghunathan, Karthik;
Sandvig, Axel;
Sandvig, Ioanna;
Andreassen, Jens-Petter;
Glomm, Wilhelm.
(2018)
Growing gold nanostructures for shape-selective cellular uptake.
Nanoscale Research Letters.
volum 13:254.
Vitenskapelig artikkel
-
Jenssen, Ina Beate;
Hines, Mona Aufles;
Dotterud, Ole Morten;
Bøckman, Oluf;
Andreassen, Jens-Petter.
(2018)
Filtration Properties of Ferric Hydroxide Precipitate in Nickel Production.
Extraction 2018- Proceedings of the First Global Conference on Extractive Metallurgy.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
2017
-
Bjørnøy, Sindre Hove;
Bassett, David;
Ucar, Seniz;
Andreassen, Jens-Petter;
Sikorski, Pawel.
(2017)
Letter to the Editor re "Characterization of alginate-brushite in-situ hydrogel composites".
Materials Science and Engineering C: Materials for Biological Applications.
volum 70.
Brev til redaktøren
-
Ucar, Seniz;
Bjørnøy, Sindre Hove;
Bassett, David;
Strand, Berit Løkensgard;
Sikorski, Pawel;
Andreassen, Jens-Petter.
(2017)
Transformation of brushite to hydroxyapatite and effects of alginate additives.
Journal of Crystal Growth.
volum 468.
Vitenskapelig artikkel
2016
-
Bjørnøy, Sindre Hove;
Bassett, David;
Ucar, Seniz;
Andreassen, Jens-Petter;
Sikorski, Pawel.
(2016)
Controlled mineralisation and recrystallisation of brushite within alginate hydrogels.
Biomedical Materials.
volum 11 (1).
Vitenskapelig artikkel
-
Bjørnøy, Sindre Hove;
Bassett, David;
Ucar, Seniz;
Strand, Berit Løkensgard;
Andreassen, Jens-Petter;
Sikorski, Pawel.
(2016)
A correlative spatiotemporal microscale study of calcium phosphate formation and transformation within an alginate hydrogel matrix.
Acta Biomaterialia.
volum 44.
Vitenskapelig artikkel
-
Bjørnøy, Sindre Hove;
Mandaric, Stefan;
Bassett, David;
Åslund, Andreas;
Ucar, Seniz;
Andreassen, Jens-Petter;
Strand, Berit Løkensgard;
Sikorski, Pawel.
(2016)
Gelling kinetics and in situ mineralization of alginate hydrogels: A correlative spatiotemporal characterization toolbox.
Acta Biomaterialia.
volum 44.
Vitenskapelig artikkel
-
Broby, Margrethe;
Andreassen, Jens-Petter;
Ma, Xiaoguang;
Neteland, Marte.
(2016)
Scaling of Calcium Carbonate on Heated Surfaces - Crystallization or Particulate Fouling?.
SPE International Oilfield Scale Conference and Exhibition 2016.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
2015
-
Flaten, Ellen Marie;
Seiersten, Marion;
Beck, Ralf;
Ma, Xiaoguang;
Aanonsen, Charlotte;
Andreassen, Jens-Petter.
(2015)
Impact of monoethylene glycol and Fe2+ on crystal growth of CaCO3.
International Corrosion Conference Series.
volum 2015-January.
Vitenskapelig artikkel
-
Ucar, Seniz;
Bjørnøy, Sindre Hove;
Bassett, David;
Strand, Berit Løkensgard;
Sikorski, Pawel;
Andreassen, Jens-Petter.
(2015)
Nucleation and Growth of Brushite in the Presence of Alginate.
Crystal Growth & Design.
volum 15 (11).
Vitenskapelig artikkel
2014
-
Nergaard, Margrethe;
Beck, Ralf;
Seiersten, Marion;
Andreassen, Jens-Petter.
(2014)
Scaling of Calcium Carbonate on the Exterior of Heated Surfaces in a Flow-Through Setup.
Chemical Engineering & Technology.
volum 37 (8).
Vitenskapelig artikkel
-
Singh, Gurvinder;
Van Helvoort, Antonius;
Bandyopadhyay, Sulalit;
Volden, Sondre;
Andreassen, Jens-Petter;
Glomm, Wilhelm.
(2014)
Synthesis of Au nanowires with controlled morphological and structural characteristics.
Applied Surface Science.
volum 311.
Vitenskapelig artikkel
-
Wang, Lijuan;
Andreassen, Jens-Petter.
(2014)
Spherulitic Growth of Gold Particles Precipitated from Aqueous Solution.
Chemical Engineering & Technology.
volum 37 (8).
Vitenskapelig artikkel
2013
-
Beck, Ralf;
Seiersten, Marion;
Andreassen, Jens-Petter.
(2013)
The constant composition method for crystallization of calcium carbonate at constant supersaturation.
Journal of Crystal Growth.
volum 380.
Vitenskapelig artikkel
-
Salmimies, Riina;
Kallas, Juha;
Ekberg, Bjarne;
Gorres, G;
Andreassen, Jens-Petter;
Beck, Ralf;
Häkkinen, Antti.
(2013)
The scaling and regeneration of the ceramic filter medium used in the dewatering of a magnetite concentrate.
International Journal of Mineral Processing.
volum 119.
Vitenskapelig artikkel
2012
-
Andreassen, Jens-Petter;
Beck, Ralf;
Nergaard, Margrethe.
(2012)
Biomimetic type morphologies of calcium carbonate grown in absence of additives.
Faraday discussions.
volum 159.
Vitenskapelig artikkel
-
Beck, Ralf;
Andreassen, Jens-Petter.
(2012)
Influence of Crystallization Conditions on Crystal Morphology and Size of CaCO3 and Their Effect on Pressure Filtration.
AIChE Journal.
volum 58 (1).
Vitenskapelig artikkel
-
Beck, Ralf;
Andreassen, Jens-Petter.
(2012)
The influence of crystallization conditions on the onset of dendritic growth of calcium carbonate.
Crystal research and technology (1981).
volum 47 (4).
Vitenskapelig artikkel
-
Kim, Inna;
Ma, Xiaoguang;
Andreassen, Jens-Petter.
(2012)
Study of the solid-liquid solubility in the piperazine-H2O-CO2 system using FBRM and PVM.
Energy Procedia.
volum 23.
Vitenskapelig artikkel
-
Ma, Xiaoguang;
Kim, Inna;
Beck, Ralf;
Knuutila, Hanna;
Andreassen, Jens-Petter.
(2012)
Precipitaton of Piperazine in Aqueous Piperazine Solutions with and without CO2 Loadings.
Industrial & Engineering Chemistry Research.
volum 51 (37).
Vitenskapelig artikkel
-
Nergaard, Margrethe;
Beck, Ralf;
Andreassen, Jens-Petter.
(2012)
Scaling of Calcium Carbonate on a Heated Surface in a Flow-Through System.
HIW 2012 HANBAT International Workshop on Industrial and Pharmaceutical Crystallizaton.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Olderøy, Magnus Østgård;
Westhrin, Marita;
Andreassen, Jens-Petter;
Zhang, Zhibing;
Strand, Berit Løkensgard;
Standal, Therese;
Sikorski, Pawel.
(2012)
Properties and cell compatibility of mineralized alginate hydrogel beads.
European Cells and Materials.
volum 23.
Sammendrag/abstract
-
Olderøy, Magnus Østgård;
Westhrin, Marita;
Ehnert, Sabrina;
Xie, Minli;
Andreassen, Jens-Petter;
Strand, Berit Løkensgard;
Standal, Therese;
Nussler, Andreas K;
Sikorski, Pawel.
(2012)
Investigation of mineralized alginate gels as a scaffold material for stem cell based bone tissue engineering.
Journal of Tissue Engineering and Regenerative Medicine.
volum 6.
Sammendrag/abstract
-
Olderøy, Magnus Østgård;
Xie, Minli;
Andreassen, Jens-Petter;
Strand, Berit Løkensgard;
Zhang, Zhibing;
Sikorski, Pawel.
(2012)
Viscoelastic properties of mineralized alginate hydrogel beads.
Journal of materials science. Materials in medicine.
volum 23 (7).
Vitenskapelig artikkel
-
Xie, Minli;
Magnus Østgård, Olderøy;
Zhang, Zhibing;
Andreassen, Jens-Petter;
Strand, Berit Løkensgard;
Sikorski, Pawel.
(2012)
Biocomposites prepared by alkaline phosphatase mediated mineralization of alginate microbeads.
RSC Advances.
volum 2 (4).
Vitenskapelig artikkel
2011
-
Beck, Ralf;
Flaten, Ellen Marie;
Andreassen, Jens-Petter.
(2011)
Influence of Crystallization Conditions on the Growth of Polycrystalline Particles.
Chemical Engineering & Technology.
volum 34 (4).
Vitenskapelig artikkel
-
Gregersen, Øyvind Weiby;
Svendsen, Hallvard Fjøsne;
Andreassen, Jens-Petter.
(2011)
Minneord over professor Gunnar Thorsen.
Årbok - Norges Tekniske Vitenskapsakademi (NTVA).
Kronikk
-
Olderøy, Magnus Østgård;
Xie, Minli;
Strand, Berit Løkensgard;
Draget, Kurt Ingar;
Sikorski, Pawel;
Andreassen, Jens-Petter.
(2011)
Polymorph Switching in the Calcium Carbonate System by Well-Defined Alginate Oligomers.
Crystal Growth & Design.
volum 11 (2).
Vitenskapelig artikkel
2010
-
Andreassen, Jens-Petter;
Flaten, Ellen Marie;
Beck, Ralf;
Lewis, Alison Emslie.
(2010)
Investigations of spherulitic growth in industrial crystallization.
Chemical engineering research & design.
volum 88 (9A).
Vitenskapelig artikkel
-
Beck, Ralf;
Andreassen, Jens-Petter.
(2010)
Spherulitic Growth of Calcium Carbonate.
Crystal Growth & Design.
volum 10 (7).
Vitenskapelig artikkel
-
Beck, Ralf;
Andreassen, Jens-Petter.
(2010)
The influence of crystallization conditions on the growth of polycrystalline particles of L-glutamic acid, an aromatic amine derivative and calcium carbonate.
17th International Workshop on Industial Crystallization (BIWIC 2010).
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Beck, Ralf;
Andreassen, Jens-Petter.
(2010)
The onset of spherulitic growth in crystallization of calcium carbonate.
Journal of Crystal Growth.
volum 312 (15).
Vitenskapelig artikkel
-
Beck, Ralf;
Heskestad, Rita;
Malthe-Sørenssen, Didrik;
Häkkinen, Antti;
Louhi-Kultanen, M.;
Andreassen, Jens-Petter.
(2010)
Ageing of spherulites of an industrial relevant aromatic amine derivative.
Crystal research and technology (1981).
volum 45 (2).
Vitenskapelig artikkel
-
Beck, Ralf;
Malthe-Sørenssen, Didrik;
Andreassen, Jens-Petter.
(2010)
Formation and ageing of L-glutamic acid spherulites.
Crystal research and technology (1981).
volum 45 (7).
Vitenskapelig artikkel
-
Beck, Ralf;
Nysæter, Trude Odberg;
Enstad, Gisle Gotfred;
Malthe-Sørenssen, Didrik;
Andreassen, Jens-Petter.
(2010)
Influence of Crystal Properties on Powder Flow Behavior of an Aromatic Amine and L-Glutamic Acid.
Particulate Science and Technology.
volum 28 (2).
Vitenskapelig artikkel
-
Beck, Ralf;
Svinning, Ketil;
Häkkinen, Antti;
Malthe-Sørenssen, Didrik;
Andreassen, Jens-Petter.
(2010)
Analysis of Filtration Characteristics for Compressible Polycrystalline Particles by Partial Least Squares Regression.
Separation science and technology (Print).
volum 45 (9).
Vitenskapelig artikkel
-
Flaten, Ellen Marie;
Seiersten, Marion;
Andreassen, Jens-Petter.
(2010)
Growth of the calcium carbonate polymorph vaterite in mixtures of water and ethylene glycol at conditions of gas processing.
Journal of Crystal Growth.
volum 312 (7).
Vitenskapelig artikkel
-
Flaten, Ellen Marie;
Seiersten, Marion;
Andreassen, Jens-Petter.
(2010)
Induction time studies of calcium carbonate in ethylene glycol and water.
Chemical engineering research & design.
volum 88 (12A).
Vitenskapelig artikkel
-
Xie, Minli;
Olderøy, Magnus Østgård;
Andreassen, Jens-Petter;
Selbach, Sverre Magnus;
Strand, Berit Løkensgard;
Sikorski, Pawel.
(2010)
Alginate-controlled formation of nanoscale calcium carbonate and hydroxyapatite mineral phase within hydrogel networks.
Acta Biomaterialia.
volum 6 (9).
Vitenskapelig artikkel
2009
-
Beck, Ralf;
Häkkinen, Antti;
Malthe-Sørenssen, Didrik;
Andreassen, Jens-Petter.
(2009)
The effect of crystallization conditions, crystal morphology and size on pressure filtration of L-glutamic acid and an aromatic amine.
Separation and Purification Technology.
volum 66 (3).
Vitenskapelig artikkel
-
Beck, Ralf;
Malthe-Sørenssen, Didrik;
Andreassen, Jens-Petter.
(2009)
Polycrystalline growth in precipitation of an aromatic amine derivative and l-glutamic acid.
Journal of Crystal Growth.
volum 311 (2).
Vitenskapelig artikkel
-
Flaten, Ellen Marie;
Seiersten, M;
Andreassen, Jens-Petter.
(2009)
Polymorphism and morphology of calcium carbonate precipitated in mixed solvents of ethylene glycol and water.
Journal of Crystal Growth.
volum 311 (13).
Vitenskapelig artikkel
-
Olderøy, Magnus Østgård;
Xie, Minli;
Andreassen, Jens-Petter;
Strand, Berit Løkensgard;
Sikorski, Pawel.
(2009)
Front cover of the book "Food Stabilisers, Thickeners and Gelling Agents".
Wiley-Blackwell. 2009.
Visuell kunst
-
Olderøy, Magnus Østgård;
Xie, Minli;
Strand, Berit Løkensgard;
Flaten, Ellen Marie;
Sikorski, Pawel;
Andreassen, Jens-Petter.
(2009)
Growth and nucleation of calcium carbonate vaterite crystals in presence of alginate.
Crystal Growth & Design.
volum 9 (12).
Vitenskapelig artikkel
2008
-
Beck, Ralf;
Malthe-Sørenssen, Didrik;
Andreassen, Jens-Petter.
(2008)
Polycrystalline Growth in Precipitation of an Aromatic Amine Derivative and L-Glutamic Acid.
Journal of Crystal Growth.
Vitenskapelig artikkel
-
Beck, Ralf;
Malthe-Sørenssen, Didrik;
Andreassen, Jens-Petter.
(2008)
The Unstable Nature of β-L-Glutamic Acid Spherulites.
BIWIC 2008.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Flaten, Ellen Marie;
Siv Monica, Fostenæs;
Andreassen, Jens-Petter.
(2008)
The effect of HEDP on calcium carbonate precipitation.
BIWIC 2008.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
2005
-
Andreassen, Jens-Petter.
(2005)
Formation mechanism and morphology in precipitation of vaterite - nano aggregation or crystal growth?.
Journal of Crystal Growth.
volum 274.
Vitenskapelig artikkel
2004
-
Andreassen, Jens-Petter;
Hounslow, Mike J..
(2004)
Growth and Aggregation of Vaterite in Seeded-Batch Experiments.
AIChE Journal.
volum 50 (11).
Vitenskapelig artikkel
2001
-
Andreassen, Jens-Petter.
(2001)
Growth and Aggregation Phenomena in Precipitation of Calcium Carbonate.
2001.
Doktorgradsavhandling
Tidsskriftspublikasjoner
-
Jenssen, Ina Beate;
Bøckman, Oluf;
Andreassen, Jens-Petter;
Ucar, Seniz.
(2021)
The Effect of Reaction Conditions and Presence of Magnesium on the Crystallization of Nickel Sulfate.
Crystals.
volum 11 (12).
Vitenskapelig artikkel
-
Jenssen, Ina Beate;
Ucar, Seniz;
Dotterud, Ole Morten;
Bøckman, Oluf;
Andreassen, Jens-Petter.
(2021)
Investigating the effects of process parameters on the filtration performance of ferric hydroxide in a continuous MSMPR reactor.
Hydrometallurgy.
volum 202.
Vitenskapelig artikkel
-
Antony, Jibin;
Raghunathan, Karthik;
Munir, Sarmad;
Andreassen, Jens-Petter;
Bandyopadhyay, Sulalit.
(2020)
Tuning and tracking the growth of gold nanoparticles synthesized using binary surfactant mixtures.
Nanoscale Advances.
volum 2(5).
Vitenskapelig artikkel
-
Raghunathan, Karthik;
Antony, Jibin;
Munir, Sarmad;
Andreassen, Jens-Petter;
Bandyopadhyay, Sulalit.
(2020)
Tuning and tracking the growth of gold nanoparticles synthesized using binary surfactant mixtures.
Nanoscale Advances.
volum 2 (5).
Vitenskapelig artikkel
-
Shaddel, Sina;
Grini, Tonje;
Andreassen, Jens-Petter;
Østerhus, Stein Wold;
Ucar, Seniz.
(2020)
Crystallization kinetics and growth of struvite crystals by seawater versus magnesium chloride as magnesium source: Towards enhancing sustainability and economics of struvite crystallization.
Chemosphere.
volum 256.
Vitenskapelig artikkel
-
Shaddel, Sina;
Grini, Tonje;
Ucar, Seniz;
Azrague, Kamal;
Andreassen, Jens-Petter;
Østerhus, Stein Wold.
(2020)
Struvite crystallization by using raw seawater: Improving economics and environmental footprint while maintaining phosphorus recovery and product quality.
Water Research.
volum 173.
Vitenskapelig artikkel
-
Shaddel, Sina;
Ucar, Seniz;
Andreassen, Jens-Petter;
Østerhus, Stein Wold.
(2019)
Engineering of struvite crystals by regulating supersaturation – Correlation with phosphorus recovery, crystal morphology and process efficiency.
Journal of Environmental Chemical Engineering.
volum 7 (1).
Vitenskapelig artikkel
-
Shaddel, Sina;
Ucar, Seniz;
Andreassen, Jens-Petter;
Østerhus, Stein Wold.
(2019)
Enhancing efficiency and economy of phosphorus recovery process by customizing the product based on sidestream characteristics.
Water Science and Technology.
volum 79 (9).
Vitenskapelig artikkel
-
Ucar, Seniz;
Bjørnøy, Sindre Hove;
Bassett, David;
Strand, Berit Løkensgard;
Sikorski, Pawel;
Andreassen, Jens-Petter.
(2019)
Formation of Hydroxyapatite via Transformation of Amorphous Calcium Phosphate in the Presence of Alginate Additives.
Crystal Growth & Design.
volum 19 (12).
Vitenskapelig artikkel
-
Wang, Lijuan;
Andreassen, Jens-Petter;
Ucar, Seniz.
(2019)
Precipitation of silver particles with controlled morphologies from aqueous solutions.
CrysteEngComm.
volum 22 (3).
Vitenskapelig artikkel
-
Bandyopadhyay, Sulalit;
McDonagh, Birgitte Hjelmeland;
Singh, Gurvinder;
Raghunathan, Karthik;
Sandvig, Axel;
Sandvig, Ioanna;
Andreassen, Jens-Petter;
Glomm, Wilhelm.
(2018)
Growing gold nanostructures for shape-selective cellular uptake.
Nanoscale Research Letters.
volum 13:254.
Vitenskapelig artikkel
-
Bjørnøy, Sindre Hove;
Bassett, David;
Ucar, Seniz;
Andreassen, Jens-Petter;
Sikorski, Pawel.
(2017)
Letter to the Editor re "Characterization of alginate-brushite in-situ hydrogel composites".
Materials Science and Engineering C: Materials for Biological Applications.
volum 70.
Brev til redaktøren
-
Ucar, Seniz;
Bjørnøy, Sindre Hove;
Bassett, David;
Strand, Berit Løkensgard;
Sikorski, Pawel;
Andreassen, Jens-Petter.
(2017)
Transformation of brushite to hydroxyapatite and effects of alginate additives.
Journal of Crystal Growth.
volum 468.
Vitenskapelig artikkel
-
Bjørnøy, Sindre Hove;
Bassett, David;
Ucar, Seniz;
Andreassen, Jens-Petter;
Sikorski, Pawel.
(2016)
Controlled mineralisation and recrystallisation of brushite within alginate hydrogels.
Biomedical Materials.
volum 11 (1).
Vitenskapelig artikkel
-
Bjørnøy, Sindre Hove;
Bassett, David;
Ucar, Seniz;
Strand, Berit Løkensgard;
Andreassen, Jens-Petter;
Sikorski, Pawel.
(2016)
A correlative spatiotemporal microscale study of calcium phosphate formation and transformation within an alginate hydrogel matrix.
Acta Biomaterialia.
volum 44.
Vitenskapelig artikkel
-
Bjørnøy, Sindre Hove;
Mandaric, Stefan;
Bassett, David;
Åslund, Andreas;
Ucar, Seniz;
Andreassen, Jens-Petter;
Strand, Berit Løkensgard;
Sikorski, Pawel.
(2016)
Gelling kinetics and in situ mineralization of alginate hydrogels: A correlative spatiotemporal characterization toolbox.
Acta Biomaterialia.
volum 44.
Vitenskapelig artikkel
-
Flaten, Ellen Marie;
Seiersten, Marion;
Beck, Ralf;
Ma, Xiaoguang;
Aanonsen, Charlotte;
Andreassen, Jens-Petter.
(2015)
Impact of monoethylene glycol and Fe2+ on crystal growth of CaCO3.
International Corrosion Conference Series.
volum 2015-January.
Vitenskapelig artikkel
-
Ucar, Seniz;
Bjørnøy, Sindre Hove;
Bassett, David;
Strand, Berit Løkensgard;
Sikorski, Pawel;
Andreassen, Jens-Petter.
(2015)
Nucleation and Growth of Brushite in the Presence of Alginate.
Crystal Growth & Design.
volum 15 (11).
Vitenskapelig artikkel
-
Nergaard, Margrethe;
Beck, Ralf;
Seiersten, Marion;
Andreassen, Jens-Petter.
(2014)
Scaling of Calcium Carbonate on the Exterior of Heated Surfaces in a Flow-Through Setup.
Chemical Engineering & Technology.
volum 37 (8).
Vitenskapelig artikkel
-
Singh, Gurvinder;
Van Helvoort, Antonius;
Bandyopadhyay, Sulalit;
Volden, Sondre;
Andreassen, Jens-Petter;
Glomm, Wilhelm.
(2014)
Synthesis of Au nanowires with controlled morphological and structural characteristics.
Applied Surface Science.
volum 311.
Vitenskapelig artikkel
-
Wang, Lijuan;
Andreassen, Jens-Petter.
(2014)
Spherulitic Growth of Gold Particles Precipitated from Aqueous Solution.
Chemical Engineering & Technology.
volum 37 (8).
Vitenskapelig artikkel
-
Beck, Ralf;
Seiersten, Marion;
Andreassen, Jens-Petter.
(2013)
The constant composition method for crystallization of calcium carbonate at constant supersaturation.
Journal of Crystal Growth.
volum 380.
Vitenskapelig artikkel
-
Salmimies, Riina;
Kallas, Juha;
Ekberg, Bjarne;
Gorres, G;
Andreassen, Jens-Petter;
Beck, Ralf;
Häkkinen, Antti.
(2013)
The scaling and regeneration of the ceramic filter medium used in the dewatering of a magnetite concentrate.
International Journal of Mineral Processing.
volum 119.
Vitenskapelig artikkel
-
Andreassen, Jens-Petter;
Beck, Ralf;
Nergaard, Margrethe.
(2012)
Biomimetic type morphologies of calcium carbonate grown in absence of additives.
Faraday discussions.
volum 159.
Vitenskapelig artikkel
-
Beck, Ralf;
Andreassen, Jens-Petter.
(2012)
Influence of Crystallization Conditions on Crystal Morphology and Size of CaCO3 and Their Effect on Pressure Filtration.
AIChE Journal.
volum 58 (1).
Vitenskapelig artikkel
-
Beck, Ralf;
Andreassen, Jens-Petter.
(2012)
The influence of crystallization conditions on the onset of dendritic growth of calcium carbonate.
Crystal research and technology (1981).
volum 47 (4).
Vitenskapelig artikkel
-
Kim, Inna;
Ma, Xiaoguang;
Andreassen, Jens-Petter.
(2012)
Study of the solid-liquid solubility in the piperazine-H2O-CO2 system using FBRM and PVM.
Energy Procedia.
volum 23.
Vitenskapelig artikkel
-
Ma, Xiaoguang;
Kim, Inna;
Beck, Ralf;
Knuutila, Hanna;
Andreassen, Jens-Petter.
(2012)
Precipitaton of Piperazine in Aqueous Piperazine Solutions with and without CO2 Loadings.
Industrial & Engineering Chemistry Research.
volum 51 (37).
Vitenskapelig artikkel
-
Olderøy, Magnus Østgård;
Westhrin, Marita;
Andreassen, Jens-Petter;
Zhang, Zhibing;
Strand, Berit Løkensgard;
Standal, Therese;
Sikorski, Pawel.
(2012)
Properties and cell compatibility of mineralized alginate hydrogel beads.
European Cells and Materials.
volum 23.
Sammendrag/abstract
-
Olderøy, Magnus Østgård;
Westhrin, Marita;
Ehnert, Sabrina;
Xie, Minli;
Andreassen, Jens-Petter;
Strand, Berit Løkensgard;
Standal, Therese;
Nussler, Andreas K;
Sikorski, Pawel.
(2012)
Investigation of mineralized alginate gels as a scaffold material for stem cell based bone tissue engineering.
Journal of Tissue Engineering and Regenerative Medicine.
volum 6.
Sammendrag/abstract
-
Olderøy, Magnus Østgård;
Xie, Minli;
Andreassen, Jens-Petter;
Strand, Berit Løkensgard;
Zhang, Zhibing;
Sikorski, Pawel.
(2012)
Viscoelastic properties of mineralized alginate hydrogel beads.
Journal of materials science. Materials in medicine.
volum 23 (7).
Vitenskapelig artikkel
-
Xie, Minli;
Magnus Østgård, Olderøy;
Zhang, Zhibing;
Andreassen, Jens-Petter;
Strand, Berit Løkensgard;
Sikorski, Pawel.
(2012)
Biocomposites prepared by alkaline phosphatase mediated mineralization of alginate microbeads.
RSC Advances.
volum 2 (4).
Vitenskapelig artikkel
-
Beck, Ralf;
Flaten, Ellen Marie;
Andreassen, Jens-Petter.
(2011)
Influence of Crystallization Conditions on the Growth of Polycrystalline Particles.
Chemical Engineering & Technology.
volum 34 (4).
Vitenskapelig artikkel
-
Gregersen, Øyvind Weiby;
Svendsen, Hallvard Fjøsne;
Andreassen, Jens-Petter.
(2011)
Minneord over professor Gunnar Thorsen.
Årbok - Norges Tekniske Vitenskapsakademi (NTVA).
Kronikk
-
Olderøy, Magnus Østgård;
Xie, Minli;
Strand, Berit Løkensgard;
Draget, Kurt Ingar;
Sikorski, Pawel;
Andreassen, Jens-Petter.
(2011)
Polymorph Switching in the Calcium Carbonate System by Well-Defined Alginate Oligomers.
Crystal Growth & Design.
volum 11 (2).
Vitenskapelig artikkel
-
Andreassen, Jens-Petter;
Flaten, Ellen Marie;
Beck, Ralf;
Lewis, Alison Emslie.
(2010)
Investigations of spherulitic growth in industrial crystallization.
Chemical engineering research & design.
volum 88 (9A).
Vitenskapelig artikkel
-
Beck, Ralf;
Andreassen, Jens-Petter.
(2010)
Spherulitic Growth of Calcium Carbonate.
Crystal Growth & Design.
volum 10 (7).
Vitenskapelig artikkel
-
Beck, Ralf;
Andreassen, Jens-Petter.
(2010)
The onset of spherulitic growth in crystallization of calcium carbonate.
Journal of Crystal Growth.
volum 312 (15).
Vitenskapelig artikkel
-
Beck, Ralf;
Heskestad, Rita;
Malthe-Sørenssen, Didrik;
Häkkinen, Antti;
Louhi-Kultanen, M.;
Andreassen, Jens-Petter.
(2010)
Ageing of spherulites of an industrial relevant aromatic amine derivative.
Crystal research and technology (1981).
volum 45 (2).
Vitenskapelig artikkel
-
Beck, Ralf;
Malthe-Sørenssen, Didrik;
Andreassen, Jens-Petter.
(2010)
Formation and ageing of L-glutamic acid spherulites.
Crystal research and technology (1981).
volum 45 (7).
Vitenskapelig artikkel
-
Beck, Ralf;
Nysæter, Trude Odberg;
Enstad, Gisle Gotfred;
Malthe-Sørenssen, Didrik;
Andreassen, Jens-Petter.
(2010)
Influence of Crystal Properties on Powder Flow Behavior of an Aromatic Amine and L-Glutamic Acid.
Particulate Science and Technology.
volum 28 (2).
Vitenskapelig artikkel
-
Beck, Ralf;
Svinning, Ketil;
Häkkinen, Antti;
Malthe-Sørenssen, Didrik;
Andreassen, Jens-Petter.
(2010)
Analysis of Filtration Characteristics for Compressible Polycrystalline Particles by Partial Least Squares Regression.
Separation science and technology (Print).
volum 45 (9).
Vitenskapelig artikkel
-
Flaten, Ellen Marie;
Seiersten, Marion;
Andreassen, Jens-Petter.
(2010)
Growth of the calcium carbonate polymorph vaterite in mixtures of water and ethylene glycol at conditions of gas processing.
Journal of Crystal Growth.
volum 312 (7).
Vitenskapelig artikkel
-
Flaten, Ellen Marie;
Seiersten, Marion;
Andreassen, Jens-Petter.
(2010)
Induction time studies of calcium carbonate in ethylene glycol and water.
Chemical engineering research & design.
volum 88 (12A).
Vitenskapelig artikkel
-
Xie, Minli;
Olderøy, Magnus Østgård;
Andreassen, Jens-Petter;
Selbach, Sverre Magnus;
Strand, Berit Løkensgard;
Sikorski, Pawel.
(2010)
Alginate-controlled formation of nanoscale calcium carbonate and hydroxyapatite mineral phase within hydrogel networks.
Acta Biomaterialia.
volum 6 (9).
Vitenskapelig artikkel
-
Beck, Ralf;
Häkkinen, Antti;
Malthe-Sørenssen, Didrik;
Andreassen, Jens-Petter.
(2009)
The effect of crystallization conditions, crystal morphology and size on pressure filtration of L-glutamic acid and an aromatic amine.
Separation and Purification Technology.
volum 66 (3).
Vitenskapelig artikkel
-
Beck, Ralf;
Malthe-Sørenssen, Didrik;
Andreassen, Jens-Petter.
(2009)
Polycrystalline growth in precipitation of an aromatic amine derivative and l-glutamic acid.
Journal of Crystal Growth.
volum 311 (2).
Vitenskapelig artikkel
-
Flaten, Ellen Marie;
Seiersten, M;
Andreassen, Jens-Petter.
(2009)
Polymorphism and morphology of calcium carbonate precipitated in mixed solvents of ethylene glycol and water.
Journal of Crystal Growth.
volum 311 (13).
Vitenskapelig artikkel
-
Olderøy, Magnus Østgård;
Xie, Minli;
Strand, Berit Løkensgard;
Flaten, Ellen Marie;
Sikorski, Pawel;
Andreassen, Jens-Petter.
(2009)
Growth and nucleation of calcium carbonate vaterite crystals in presence of alginate.
Crystal Growth & Design.
volum 9 (12).
Vitenskapelig artikkel
-
Beck, Ralf;
Malthe-Sørenssen, Didrik;
Andreassen, Jens-Petter.
(2008)
Polycrystalline Growth in Precipitation of an Aromatic Amine Derivative and L-Glutamic Acid.
Journal of Crystal Growth.
Vitenskapelig artikkel
-
Andreassen, Jens-Petter.
(2005)
Formation mechanism and morphology in precipitation of vaterite - nano aggregation or crystal growth?.
Journal of Crystal Growth.
volum 274.
Vitenskapelig artikkel
-
Andreassen, Jens-Petter;
Hounslow, Mike J..
(2004)
Growth and Aggregation of Vaterite in Seeded-Batch Experiments.
AIChE Journal.
volum 50 (11).
Vitenskapelig artikkel
Kunstneriske produksjoner
-
Olderøy, Magnus Østgård;
Xie, Minli;
Andreassen, Jens-Petter;
Strand, Berit Løkensgard;
Sikorski, Pawel.
(2009)
Front cover of the book "Food Stabilisers, Thickeners and Gelling Agents".
Wiley-Blackwell. 2009.
Visuell kunst
Del av bok/rapport
-
Jenssen, Ina Beate;
Ucar, Seniz;
Bøckman, Oluf;
Dotterud, Ole Morten;
Andreassen, Jens-Petter.
(2020)
Impurity Uptake During Cooling Crystallization of Nickel Sulfate.
Rare Metal Technology 2020.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Jenssen, Ina Beate;
Hines, Mona Aufles;
Dotterud, Ole Morten;
Bøckman, Oluf;
Andreassen, Jens-Petter.
(2018)
Filtration Properties of Ferric Hydroxide Precipitate in Nickel Production.
Extraction 2018- Proceedings of the First Global Conference on Extractive Metallurgy.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Broby, Margrethe;
Andreassen, Jens-Petter;
Ma, Xiaoguang;
Neteland, Marte.
(2016)
Scaling of Calcium Carbonate on Heated Surfaces - Crystallization or Particulate Fouling?.
SPE International Oilfield Scale Conference and Exhibition 2016.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Nergaard, Margrethe;
Beck, Ralf;
Andreassen, Jens-Petter.
(2012)
Scaling of Calcium Carbonate on a Heated Surface in a Flow-Through System.
HIW 2012 HANBAT International Workshop on Industrial and Pharmaceutical Crystallizaton.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Beck, Ralf;
Andreassen, Jens-Petter.
(2010)
The influence of crystallization conditions on the growth of polycrystalline particles of L-glutamic acid, an aromatic amine derivative and calcium carbonate.
17th International Workshop on Industial Crystallization (BIWIC 2010).
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Beck, Ralf;
Malthe-Sørenssen, Didrik;
Andreassen, Jens-Petter.
(2008)
The Unstable Nature of β-L-Glutamic Acid Spherulites.
BIWIC 2008.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Flaten, Ellen Marie;
Siv Monica, Fostenæs;
Andreassen, Jens-Petter.
(2008)
The effect of HEDP on calcium carbonate precipitation.
BIWIC 2008.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
Rapport
-
Andreassen, Jens-Petter.
(2001)
Growth and Aggregation Phenomena in Precipitation of Calcium Carbonate.
2001.
Doktorgradsavhandling
Undervisning
Emner
- HMS0001 - HMS-kurs for 1. årsstudenter
- TKP4580 - Kjemisk prosessteknologi, fordypningsprosjekt
- TKP4581 - Kjemisk prosessteknologi, fordypningsprosjekt
- TKP4570 - Nanoteknologi, fordypningsprosjekt
- TKP4905 - Nanoteknologi, masteroppgave
- TKP4900 - Kjemisk prosessteknologi, masteroppgave
- TKP4901 - Kjemisk prosessteknologi, masteroppgave
- TKP4535 - Miljø- og reaktorteknologi, fordypningsemne
Formidling
2022
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Vitenskapelig foredragAli, Zeeshan; Andreassen, Jens-Petter; Bandyopadhyay, Sulalit. (2022) Influence of Iron Oxide Nanoparticles in Silanization. 18th European Student Colloid Conference . European Colloid & Interface Society and MKE; Szeged. 2022-06-26 - 2022-06-30.
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PosterAli, Zeeshan; Bandyopadhyay, Sulalit; Andreassen, Jens-Petter. (2022) Control of Particle Size, Particle Size Distribution and Morphology of Silica Coated Iron Oxide Nanoparticles. 36th European Colloid & Interface Society Conference . European Colloid & Interface Society; Chania, Crete. 2022-09-04 - 2022-09-09.
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Faglig foredragYounas, Daniyal; Ucar, Seniz; Wang, Lijuan; Andreassen, Jens-Petter; Chushkin, Yuriy; Breiby, Dag Werner; Chattopadhyay, Basab. (2022) X-Ray Nanoscopy Reveals Oriented Growth of Seeded Calcium Carbonate Microparticles. TNNN Conference 2022 . NTNU; Trondheim. 2022-11-30 - 2022-12-02.
2020
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Vitenskapelig foredragJenssen, Ina Beate; Ucar, Seniz; Bøckman, Oluf; Dotterud, Ole Morten; Andreassen, Jens-Petter. (2020) Impurity Uptake During Cooling Crystallization of Nickel Sulfate. TMS 2020 - Rare Metal Technology 2020 . The Minerals, Metals & Materials Society; San Diego Convention Center, California. 2020-02-23 - 2020-02-27.
2018
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Vitenskapelig foredragJenssen, Ina Beate; Aufles Hines, Mona; Dotterud, Ole Morten; Bøckman, Oluf; Andreassen, Jens-Petter. (2018) Filtration Properties of Ferric Hydroxide Precipitate in Nickel Production. Extraction 2018 - Hydrometallurgy 2018 . MetSoc, CIM, SME, and TMS; Ottawa. 2018-08-26 - 2018-08-29.
2017
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PosterAntony, Jibin; Raghunathan, Karthik; Bandyopadhyay, Sulalit; Andreassen, Jens-Petter. (2017) Understanding seed mediated growth and growth kinetics of anisotropic gold nanostructures. Nano@NTNU Symposium 2017 . NTNU NanoLab; Trondheim. 2017-12-06 - 2017-12-07.
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Faglig foredragBjørnøy, Sindre Hove; Bassett, David; Schweikle, Manuel; Strand, Berit Løkensgard; Tiainen, Hanna; Ucar, Seniz; Andreassen, Jens-Petter; Sikorski, Pawel. (2017) Bioinspired mineralization of hydrogels. European Materials Research Society Spring Meeting 2017 . European Materials Research Society; Strasbourg. 2017-05-21 - 2017-05-26.
2016
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PosterBjørnøy, Sindre Hove; Bassett, David; Ucar, Seniz; Andreassen, Jens-Petter; Sikorski, Pawel. (2016) Correlative microscopy and spectroscopy studies of calcium phosphate mineralization processes within alginate hydrogels. Gordon Research Conference on Biomineralization . GRC; Girona. 2016-08-14 - 2016-08-19.
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Faglig foredragMa, Xiaoguang; Beck, Ralf; Andreassen, Jens-Petter. (2016) Secondary Nucleation of Calcium Carbonate. The 18th International Conference on Crystal Growth and Epitaxy ; 2016-08-07 - 2016-08-12.
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PosterRaghunathan, Karthik; Bandyopadhyay, Sulalit; McDonagh, Birgitte Hjelmeland; Andreassen, Jens-Petter. (2016) Tracking the Growth of Anisotropic Gold Nanostructures. Nano@NTNU Symposium 2016 . NTNU NanoLab; Trondheim. 2016-11-17 - 2016-11-18.
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Vitenskapelig foredragUcar, Seniz; Bjørnøy, Sindre Hove; Bassett, David; Strand, Berit Løkensgard; Sikorski, Pawel; Andreassen, Jens-Petter. (2016) Transformation Kinetics of Brushite to Hydroxyapatite. The 18th International conference on Crystal Growth and Epitaxy ; Nagoya Congress Center. 2016-08-07 - 2016-08-12.
2015
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Faglig foredragBjørnøy, Sindre Hove; Bassett, David; Mandaric, Steffan; Strand, Berit Løkensgard; Andreassen, Jens-Petter; Ucar, Seniz; Sikorski, Pawel. (2015) Mineralisation of alginate hydrogels. 8th Kyoto International Forum for Environment and Energy (KIFEE) . Kyoto International Forum for Environment and Energy; Trondheim. 2015-09-20 - 2015-09-23.
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Vitenskapelig foredragMa, Xiaoguang; Ma'mun, Sholeh; Andreassen, Jens-Petter. (2015) Selection and Characterization of Phase-Change Solvents for Carbon Dioxide Capture: Precipitation Behavior. 8th Trondheim CCS Conference (TCCS-8) ; Trondheim. 2015-06-16 - 2015-06-18.
2014
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Vitenskapelig foredragAndreassen, Jens-Petter. (2014) Aggregation or crystal growth? A comparison of calcium carbonate and barium sulphate precipitation. BACG 2014: Annual Conference of the British Association for Crystal Growth ; Leeds. 2014-07-13 - 2014-07-15.
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PosterBjørnøy, Sindre Hove; Bassett, David; Ucar, Seniz; Andreassen, Jens-Petter; Strand, Berit Løkensgard; Sikorski, Pawel. (2014) An investigation of acidic calcium phosphates in mineralised alginate hydrogels. Scandinavian Society for Biomaterials, 7th annual meeting; . Scandinavian Society for Biomaterials; Århus. 2014-03-24 - 2014-03-28.
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PosterUcar, Seniz; Bjørnøy, Sindre Hove; Bassett, David; Strand, Berit Løkensgard; Sikorski, Pawel; Andreassen, Jens-Petter. (2014) Brushite Crystallization in Alginate Beads. ISC Granada 2014 ; 2014-05-25 - 2014-05-30.
2013
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Vitenskapelig foredragAndreassen, Jens-Petter; Beck, Ralf; Wang, Lijuan; Nergaard, Margrethe. (2013) The importance of supersaturation for the morphology development of calcium carbonate. XXII International Material Research Congress 2013 ; Cancun. 2013-08-11 - 2013-08-15.
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Faglig foredragBassett, David; Bjørnøy, Sindre Hove; Strand, Berit Løkensgard; Andreassen, Jens-Petter; Sikorski, Pawel. (2013) Mineralised alginate based hydrogel composites for tissue engineering. Advances in Tissue Regeneration 2013 Conference . University of Twente; Lattrop. 2013-11-14 - 2013-11-15.
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PosterMa, Xiaoguang; Andreassen, Jens-Petter. (2013) Precipitation in CO2 Capture Processes. 20th International Workshop on Industrial Crystalliation (BIWIC 2013) ; 2013-09-18 - 2013-09-20.
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Vitenskapelig foredragMa, Xiaoguang; Ma'mun, Sholeh; Andreassen, Jens-Petter. (2013) Selection and Characterization of Phase-Change Solvent for Carbon Dioxide Capture: Precipitation Behavior Study. The 7th Trondheim CCS Conference (TCCS-7) ; Trondheim. 2013-06-04 - 2013-06-06.
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PosterNergaard, Margrethe; Beck, Ralf; Hyllestad, Ketil; Andreassen, Jens-Petter. (2013) Scale formation on heated surfaces. 20th International Workshop on Industrial Crystallization (BIWIC2013) ; Odense. 2013-09-18 - 2013-09-20.
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Vitenskapelig foredragSingh, Gurvinder; Van Helvoort, Antonius; Bandyopadhyay, Sulalit; Volden, Sondre; Andreassen, Jens-Petter; Glomm, Wilhelm. (2013) Shape and Size Controlled Synthesis of Metal Nanostructures. 8th Nanolab usermeeting . NTNU Nanolab; Trondheim. 2013-11-12 - 2013-11-12.
2012
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Populærvitenskapelig foredragAndreassen, Jens-Petter. (2012) Hva har toppen av Mount Everest til felles med kråkeboller og innsiden av oljerør ?. Motivasjonsforedrag ; NTNU, Trondheim. 2012-02-28.
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Vitenskapelig foredragAndreassen, Jens-Petter; Nergaard, Margrethe; Beck, Ralf. (2012) On the emerging non-classical crystallization paradigm- examples from calcium carbonate precipitaton. 19th International Workshop on Industrial Crystalliation (BIWIC 2012) ; Tianjin. 2012-09-07 - 2012-09-09.
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PosterBeck, Ralf; Nergaard, Margrethe; Andreassen, Jens-Petter. (2012) Crystal Growth of Calcite at Conditions of Gas Processing. 19th International Workshop on Industrial Crystalliation (BIWIC 2012) ; Tianjin. 2012-09-07 - 2012-09-09.
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PosterBeck, Ralf; Vatneberg, Stine; Nergaard, Margrethe; Andreassen, Jens-Petter. (2012) Scaling of Calcium Carbonate on Stainless Steel Surfaces in Mixed Solutions of Monoethylene Glycol and Water. HIW 2012 HANBAT International Workshop on Industrial and Pharmaceutical Crystallizaton . Hanbat Natonal University; Deajeon. 2012-09-03 - 2012-09-05.
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PosterMa, Xiaoguang; Beck, Ralf; Andreassen, Jens-Petter. (2012) Crystal Growth Kinetics of Potassium Bicarbonate in Water. 19th International Workshop on Industrial Crystalliation (BIWIC 2012) ; Tianjin. 2012-09-07 - 2012-09-09.
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PosterNergaard, Margrethe; Beck, Ralf; Barland, Astrid Odland; Andreassen, Jens-Petter. (2012) On the Determination of Nucleation Rates from Induction Time Measurements for Calcium Carbonate. 19th International Workshop on Industrial Crystalliation (BIWIC 2012) ; Tianjin. 2012-09-07 - 2012-09-09.
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PosterWang, Lijuan; Beck, Ralf; Andreassen, Jens-Petter. (2012) The induction time and growth morphology of gold particles precipitated by reduction with ascorbic acid at different pH values. 19th International Workshop on Industrial Crystalliation (BIWIC 2012) ; Tianjin. 2012-09-07 - 2012-09-09.
2011
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Vitenskapelig foredragBeck, Ralf; Andreassen, Jens-Petter. (2011) The Influence of Crystallization Conditions on the Growth of Calcium Carbonate. International Conference on Materials for Advanced Technologies (ICMAT 2011) ; Singapore. 2011-06-26 - 2011-07-01.
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PosterBeck, Ralf; Mohamed, Rizqah; Emslie Lewis, Alison; Andreassen, Jens-Petter. (2011) Growth and Morphology of the Vaterite Polymorph of Calcium Carbonate at Constant Supersaturation. 18th International Symposium on Industrial Crystallization (ISIC 18) ; Zurich. 2011-09-13 - 2011-09-16.
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PosterKim, Inna; Ma, Xiaoguang; Andreassen, Jens-Petter; Knuutila, Hanna; Beck, Ralf. (2011) Solubility measurements of piperazine. The 6th Trondheim CCS Conference (TCCS-6) ; Trondheim. 2011-06-14.
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Vitenskapelig foredragMa, Xiaoguang; Kim, Inna; Andreassen, Jens-Petter; Knuutila, Hanna; Beck, Ralf. (2011) PRECIPITATION OF PIPERAZINE IN THE PIPERAZINE-H2O-CO2 SYSTEM. 18th International Symposium on Industrial Crystallization (ISIC 18) ; Zurich. 2011-09-13 - 2011-09-16.
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PosterNergaard, Margrethe; Beck, Ralf; Andreassen, Jens-Petter. (2011) Scaling of Calcium Carbonate on Heated Surfaces at Constant Supersaturation. 18th International Symposium on Industrial Crystallization (ISIC 18) ; Zurich. 2011-09-13 - 2011-09-16.
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Vitenskapelig foredragSalmimies, Riina; Häkkinen, Antti; Ekberg, Bjarne; Kallas, Juha; Andreassen, Jens-Petter; Beck, Ralf. (2011) Removal of calcium scales from the surface of a ceramic filter medium. Filtech Exhibitions Germany, Filtech 2011 ; Wiesbaden. 2011-03-22 - 2011-03-24.
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Vitenskapelig foredragSalmimies, Riina; Häkkinen, Antti; Kallas, Juha; Ekberg, Bjarne; Andreassen, Jens-Petter; Beck, Ralf. (2011) Characterisation of long-term scaling effects of ceramic filter media used in the dewatering of iron ore. Iron Ore 2011 . The Australasian Institute of Mining and Metallurgy; Perth. 2011-07-11 - 2011-07-13.
2010
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Vitenskapelig foredragBeck, Ralf; Andreassen, Jens-Petter. (2010) Pressure Filtration of three Industrially Important Substances and its Dependency on Crystallization Conditions, Size and Morphology. The 13th Nordic Filtration Symposium . Lappeenranta University of Technology; Lappeenranta. 2010-06-10 - 2010-06-11.
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PosterOlderøy, Magnus Østgård; Xie, Minli; Strand, Berit Løkensgard; Draget, Kurt Ingar; Andreassen, Jens-Petter; Sikorski, Pawel. (2010) Powerful Polymorph Selection in the Calcium Carbonate System by Well Defined Alginate Oligomers. Gordon Research Conference: Biomineralization ; 2010-08-15 - 2010-08-20.
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Vitenskapelig foredragOlderøy, Magnus Østgård; Xie, Minli; Strand, Berit Løkensgard; Draget, Kurt Ingar; Sikorski, Pawel; Andreassen, Jens-Petter. (2010) Control of calcium carbonate polymorphism and morphology by high molecular weight alginate and well defined alginate oligomers. International Workshop on Industrial Crystallization (BIWIC) ; 2010-09-08 - 2010-09-10.
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Vitenskapelig foredragOlderøy, Magnus Østgård; Xie, Minli; Østnæs, Simen; Strand, Berit Løkensgard; Draget, Kurt Ingar; Andreassen, Jens-Petter; Sikorski, Pawel. (2010) Control of calcium carbonate crystal polymorphism and morphology by high molecular weight alginate and well defined alginate oligomers. Biophysics meeting, Kongsvold 2010 ; 2010-03-03 - 2010-03-05.
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Vitenskapelig foredragSaiersten, Marion; Brendsdal, Egil; Deshmukh, Salim Abdul R K.; Dugstad, Arne; Endrestøl, Guttorm; Ek, Arild; Watterud, Geir; Andreassen, Jens-Petter. (2010) Development of a simulator for ethylene glycol loops based on solution thermodynamics and particle formation kinetics. NACE Corrosion 2010 ; San Antonio, Texas. 2010-03-14 - 2010-03-18.
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Vitenskapelig foredragSalmimies, Riina; Häkkinen, Antti; Kallas, Juha; Ekberg, Bjarne; Andreassen, Jens-Petter; Beck, Ralf. (2010) Characterization of filter media used in the dewatering of iron ore. 13th Nordic Filtration Symposium . Lappeenranta University of Technology; Lappeenranta. 2010-06-10 - 2010-06-11.
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Vitenskapelig foredragXie, Minli; Olderøy, Magnus Østgård; Strand, Berit Løkensgard; Andreassen, Jens-Petter; Sikorski, Pawel. (2010) Nanoscale control of mineral deposition within alginate gel networks. Biophysics meeting, Kongsvold 2010 ; 2010-03-03 - 2010-03-05.
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PosterXie, Minli; Olderøy, Magnus Østgård; Strand, Berit Løkensgard; Standal, Therese; Zhang, Zhibing; Andreassen, Jens-Petter; Sikorski, Pawel. (2010) Bio-inspired mineralization of alginate hydrogels with hydroxyapatite for new composite materials in tissue engineering. Gordon Research Conference: Biomineralization ; 2010-08-15 - 2010-08-20.
2009
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Vitenskapelig foredragAndreassen, Jens-Petter; Brendsdal, E.; Deshmukh, Salim Abdul R K.; Endrestøl, G.; Ek, A.; Dugstad, A.; Flaten, Ellen Marie; Seiersten, M.; Watterud, Geir. (2009) Development of a simulator for ethylene glycol loops based on solution thermodynamics and particle formation kinetics. 20th International Oilfield Chemistry Symposium ; Geilo. 2009-03-22 - 2009-03-25.
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Vitenskapelig foredragBeck, Ralf; Malthe-Sørenssen, Didrik; Andreassen, Jens-Petter. (2009) Crystallization and Filtration of CaCO3. BIWIC 2009 16th International Workshop on Industrial Crystallization . Lappeenranta University of Technology; Lappeenranta. 2009-09-09 - 2009-09-11.
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PosterFlaten, Ellen Marie; Seiersten, M.; Sivanesan, Vaseeharan; Andreassen, Jens-Petter. (2009) Growth rates of calcium carbonate in mono ethylene glycol and water. BIWIC 2009 16th International Workshop on Industrial Crystallization . Lappeenranta University of Technology; Lappeenranta. 2009-09-09 - 2009-09-11.
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Vitenskapelig foredragFlaten, Ellen Marie; Seiersten, M.; Sivanesan, Vaseeharan; Bergsted, Elin; Andreassen, Jens-Petter. (2009) The crystal growth rate of calcium carbonate at conditions of hydrate inhibition in gas processing systems. The 20th international Oil Field Chemistry Symposium ; Geilo. 2009-03-22 - 2009-03-25.
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Vitenskapelig foredragOlderøy, Magnus Østgård; Xie, Minli; Østnæs, Simen; Andreassen, Jens-Petter; Strand, Berit Løkensgard; Sikorski, Pawel. (2009) Alginate/CaCO3 Biomaterials. Bone-Tec 2009 ; Hannover. 2009-10-08 - 2009-10-11.
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Vitenskapelig foredragWatterud, Geir; Seiersten, M.; Andreassen, Jens-Petter. (2009) Iron Carbonate in MEG/Water mixtures. Solubility, thermodynamic and kinetic measurements. The 20th international Oil Field Chemistry Symposium ; Geilo. 2009-03-22 - 2009-03-25.
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PosterXie, Minli; Olderøy, Magnus Østgård; Strand, Berit Løkensgard; Andreassen, Jens-Petter; Sikorski, Pawel. (2009) Alginate/CaCO3 Composite Biomaterials. NANOMAT conference 2009 . The Norwegian Research Council; Lillehammer. 2009-06-16 - 2009-06-17.
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PosterXie, Minli; Olderøy, Magnus Østgård; Strand, Berit Løkensgard; Andreassen, Jens-Petter; Sikorski, Pawel. (2009) Alginate/CaCO3 Composite Biomaterials. NTNU Nanolab Usermeeting 2009 . NTNU Nanolab; NTNU. 2009-05-12 - 2009-05-14.
2008
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Vitenskapelig foredragAndreassen, Jens-Petter; Flaten, Ellen Marie; Beck, Ralf. (2008) Investigations of spherulitic growth in industrial crystallization. SIC 17 (17th INTERNATIONAL SYMPOSIUM ON INDUSTRIAL CRYSTALLIZATION ; Maastricht. 2008-09-14 - 2008-09-17.
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Vitenskapelig foredragBeck, Ralf; Malthe-Sørenssen, Didrik; Andreassen, Jens-Petter. (2008) The influence of Process Parameters and Resulting Crystal Properties on Constant pressure Filtration of L-Glutamic Acid and an Aromatic Amine. ISIC 17 (17th INTERNATIONAL SYMPOSIUM ON INDUSTRIAL CRYSTALLIZATION), ; Maastrich. 2008-09-14 - 2008-09-17.
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Vitenskapelig foredragBeck, Ralf; Malthe-Sørenssen, Didrik; Andreassen, Jens-Petter; Häkkinen, Antti; Louhi-Kultanen, Majata. (2008) The Influence of Morphology and Size on Constant Pressure Filtration for two Crystallizing Systems. 10th World Filtration Congress, ; Leipzig. 2008-04-14 - 2008-04-18.
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Vitenskapelig foredragBeck, Ralf; Malthe-Sørenssen, Didrik; Andreassen, Jens-Petter; Nysæther, Trude; Enstad, G. G.. (2008) Influence of Crystal Properties on Powder Flow Behaviour. International Symposium Reliable Flow of Particulate Solids IV (RELPOWFLO IV), ; Tromsø. 2008-06-10.
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Vitenskapelig foredragFlaten, Ellen Marie; Andreassen, Jens-Petter. (2008) Induction time studies of calcium carbonate in ethylene glycol and water. ISIC 2008 ; Maastricht. 2008-09-14 - 2008-09-17.
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Vitenskapelig foredragFlaten, Ellen Marie; Andreassen, Jens-Petter. (2008) Investigations of spherulitic growth in industrial crystallization. ISIC2008 ; Maastricht. 2008-09-14 - 2008-09-17.
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Vitenskapelig foredragFlaten, Ellen Marie; Fostenæs, Siv Monica; Andreassen, Jens-Petter. (2008) The effect of HEDP on calcium carbonate precipitation. BIWIC2008 ; Magdeburg. 2008-09-10 - 2008-09-12.
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Vitenskapelig foredragFlaten, Ellen Marie; Seiersten, Marion; Andreassen, Jens-Petter. (2008) Nucleation and crystal growth determination for CaCo3. Crystallization seminar. Crypow ; Oslo. 2008-11-27.
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Vitenskapelig foredragFlaten, Ellen Marie; Watterud, Geir; Andreassen, Jens-Petter; Seiersten, Marion. (2008) Precipitation of iron and calcium carbonate in pipelines at varying MEG contents. 2008 SPE Ninth International Conference on Oilfield Scale ; Aberdeen. 2008-05-28 - 2008-05-29.
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PosterOlderøy, Magnus Østgård; Strand, Berit Løkensgard; Andreassen, Jens-Petter; Sikorski, Pawel. (2008) Alginate Gel Beads as Model System for Biomineralization. Nanotechnology@NTNU 2008 . NTNU Nanolab; Trondheim. 2008-09-11 - 2008-09-12.
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Vitenskapelig foredragOlderøy, Magnus Østgård; Strand, Berit Løkensgard; Andreassen, Jens-Petter; Sikorski, Pawel. (2008) Biomineralization: Nanoscale Control of Mineral Deposition Within Polysaccharide Gel Networks. Nanotech Northern Europe 2008 ; Copenhagen. 2008-09-23 - 2008-09-25.
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PosterOlderøy, Magnus Østgård; Strand, Berit Løkensgard; Andreassen, Jens-Petter; Sikorski, Pawel. (2008) Nanoscale Control of Mineral Deposition Within Polysaccharide Gel Networks. Biofysikkmøtet Kongsvold 2008 ; Kongsvold. 2008-02-27 - 2008-02-29.
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PosterVolden, Sondre; Beck, Ralf; Opedal, Nils; Zhu, Kaizheng; Nyström, Bo; Andreassen, Jens-Petter; Glomm, Wilhelm. (2008) Low Temperature Synthesis of Gold Nanoparticles using Ascorbic Acid and Cellulose Derivates. 1st Nanotechnology@NTNU . NTNU, Nanolab; NTNU, Trondheim. 2008-09-11 - 2008-09-12.
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Vitenskapelig foredragVolden, Sondre; Opedal, Nils; Andreassen, Jens-Petter; Nyström, Bo; Glomm, Wilhelm. (2008) Polymer assisted nanoparticle synthesis. Polymer Meeting ; Vinstra. 2008-03-10 - 2008-03-12.
2007
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Vitenskapelig foredragAndreassen, Jens-Petter. (2007) Crystallization in mono ethylene glycol (MEG) systems for gas processing. Seminar i Industriell Krystallisasjon ; Oslo. 2007-11-29.
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PosterBeck, Ralf; Malthe-Sørenssen, Didrik; Andreassen, Jens-Petter. (2007) The onset of polycrystalline Growth in precipitation of L-glutamic acid compared to an aromatic amine derivative. 14th International Workshop on Industrial Crystallization (BIWIC) ; Cape Town. 2007-09-09 - 2007-09-11.
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Vitenskapelig foredragBeck, Ralf; Nysæter, T.; Andreassen, Jens-Petter. (2007) The Influence of Process Parameters and Resulting Crystal Properties on Filtration and Powder Handling of 2 crystallizing systems. POSTEC Annual General Meeting 2007 ; Sandefjord. 2007-11-12.
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PosterDeshmukh, Salim Abdul R K.; Seiersten, M.; Dugstad, A.; Flaten, Ellen Marie; Andreassen, Jens-Petter. (2007) Some Aspects of MEG Regeneration Loop in Unprocessed Gas Condensate Pipelines. SPE Workshop: Managing Oilfield Scale in the 21th century ; Lisbon. 2007-06-18 - 2007-06-21.
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Vitenskapelig foredragFlaten, Ellen Marie; Andreassen, Jens-Petter. (2007) Effect of Mono Ethylene Glycol on the Precipitation of Calcium Carbonate. 18th International Oil Field Chemistry Symposium ; Geilo. 2007-03-25 - 2007-03-28.
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Vitenskapelig foredragFlaten, Ellen Marie; Andreassen, Jens-Petter. (2007) Polymorphism and nucleation kinetics in precipitation of calcium carbonate in water and ethylene glycol. 4th International Workshop on Industrial Crystallization (BIWIC) ; Cape Town. 2007-09-09 - 2007-09-11.
2006
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Vitenskapelig foredragOchoa-Fernandez, Esther; Haugen, Geir; Zhao, Tiejun; Rusten, Hans Kristian; Andreassen, Jens-Petter; Rønning, Magnus; Jakobsen, Hugo Atle; Aartun, Ingrid; Børresen, Børre; Rytter, Erling; Rønnekleiv, Morten; Chen, De. (2006) Design, preparation and applications of CO2 acceptors in power generation with CO2 management. 12th International Conference on Greenhouse Gas Control Technologies, GHGT-8 . NTNU; Trondheim. 2006-06-19 - 2006-06-22.
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Vitenskapelig foredragAndreassen, Jens-Petter. (2006) The influence of crystallization processes on particle characteristics and solid-liquid separation. POSTEC Annual General Meeting ; Sandefjord. 2006-10-02.
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PosterDeshmukh, Salim Abdul R K.; Seiersten, M.; Dugstad, A.; Andreassen, Jens-Petter. (2006) Optimisation of glycol (MEG) loop and operation for long tie.ins carrying unprocessed gas condensate. 111th International Summer Course by BASF Aktiengesellschaft ; Ludwigshafen. 2006-07-31 - 2006-08-12.
2005
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PosterAndreassen, Jens-Petter; Malthe-Sørenssen, Didrik. (2005) The Importance of Sperulitic Growth Identification in Industrial Crystallisation. 16th International Symposium on Industrial Crystallization ; Dresden. 2005-09-11 - 2005-09-14.
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PosterNygjelten, Eva; Andreassen, Jens-Petter. (2005) Particle Size-Enlargement in Alkali Jarosite Precipitation. 16th International Symposium on Industrial Crystallization ; Dresden. 2005-09-11 - 2005-09-14.
2002
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Vitenskapelig foredragAndreassen, Jens-Petter; Thorsen, Gunnar. (2002) On the Precipitation of Calcium Carbonate at High Supersaturation. 15th International Symposium on Industrial Crystallization . [Mangler data]; Sorrento, Italy. 2002-09-18.