Louise Helene Soegaard Jensen

photo placeholder image
Phone numbers
Office: 021 692 44 22 SEM lab: 021 692 43 53

EPFL ENAC IIE LGB
GEO 3236 (Géopolis UNIL)
Rue de la Mouline 11
CH-1015 Lausanne

perm_contact_calendarvCard
Administrative data

Fields of expertise

Electron microscopy of soft materials. Especially cryo-SEM, low voltage SEM and related prep techniques.
Microscopy:
(cryo-) SEM, VP-SEM, FIBSEM, (cryo-) TEM, STEM, EDX, CLSM, fluorescence microscopy. Method development for CryoNanoSIMS.
Experience with a multitude of sample types such as unicellular organisms, biofilms, invertebrates, polymers, liquid suspensions, nanoparticles, emulsions, building materials, sediments, foodstuff and plants.
Prep:
Experience with all freezing methods for cryo-SEM and –TEM including all brands of high pressure freezers, slam freezing, propane jet freezing, guillotine systems and plunge freezers. Experience with all cold stage systems on the market for cryo-SEM. Ultramicrotomy: standard, serial, cryo and cryo-planing. Freeze substitution, freeze drying, standard chemical fixation etc.
Other:
3D reconstruction of microscopy data from FIB, 3View and array tomography. Multivariate statistics and modelling. Microbiology and molecular biology methods. Sensory and chemical analysis.

Publications

Updated December 2018

Journal articles 1. Gibbin E, Gavish A, Krueger T, Kramarski-Winter E, Shapiro O, Guiet R, Jensen L, Vardi A, Meibom A (2018). Vibrio coralliilyticus infection triggers a behavioral response and perturbs nutritional exchange and tissue integrity in a symbiotic coral. ISME J. In press. 2. Holguera JG, Etui ID, Jensen LHS, Peña J (2018). Contaminant loading and competitive access of Pb, Zn and Mn(III) to vacancy sites in biogenic MnO2. Chemical Geology 502 76-87. 3. Hansen MJ, Pedersen CL, Jensen LHS, Guldberg LB, Feilberg A, Nielsen LP (2018). Removal of hydrogen sulphide from pig house using biofilter with fungi. Biosystems Engineering 167 32-39. 4. Koho KA, Le Kieffre C, Nomaki H, Salonen I, Geslin E, Mabilleau G, Jensen LHS, Reichart G-J (2018). Changes in ultrastructural features of the foraminifera Ammonia spp. in response to anoxic conditions: Field and laboratory observations. Marine micropaleontology 138 72-82. 5. Hartmann NB, Rist S, Bodin J, Jensen LHS, Schmidt SN, Mayer P, Meibom A, Baun A (2017). Microplastics as vectors for environmental contaminants: Exploring sorption, desorption, and transfer to biota. Integrated Environmental Assessment and Management 13 (3) 488-493. 6. Jensen LS, Skjolding LM, Thit A, Sørensen SN, Købler C, Mølhave K, Baun A (2017) Not All that Glitters is Gold – Electron Microscopy Study on Uptake of Gold Nanoparticles in Daphnia Magna and Related Artefacts. Environmental Toxicology and Chemistry 36 (6) 1503-1509. * 7. Karadag A, Hermund DB, Jensen LHS, Andersen U, Jonsdottir R, Kristinsson HG, Alasalvar C, Jacobsen C (2017) Oxidative stability and microstructure of 5% fish-oil-enriched granola bars added natural antioxidants derived from brown alga Fucus vesiculosus. European Journal of Lipid Science and Technology 119 (4) 1500578. 8. Green M, Haigh SJ, Lewis EA, Sandiford L, Burkitt-Gray M, Fleck R, Vizcay-Barrena G, Jensen L, Mirzai H, Curry RJ, Dailey L-A. (2016) The Biosynthesis of Infrared-Emitting Quantum Dots in Allium Fistulosum. Nature - Scientific Reports 6 20480. 9. Horn AF, Green-Petersen D, Nielsen NS, Andersen U, Jensen LHS, Horsewell A, Jacobsen C. (2012) Addition of fish oil to cream cheese affects lipid oxidation, sensory stability and microstructure. Agriculture 2 359-375. 10. Lu FSH, Nielsen NS, Baron CP, Jensen LHS, Jacobsen C (2012) Physico-chemical Properties of Marine Phospholipid Emulsions. Journal of the American Oil Chemists’ Society 89 (11) 2011-2024. 11. Horn AF, Nielsen NS, Jensen LHS, Horsewell A, Jacobsen C (2012) The choice of homogenisation equipment affects lipid oxidation in emulsions. Food Chemistry 134 (2) 803-810. 12. Dudkiewicz A, Tiede K, Löschner K, Jensen LHS, Jensen E, Wierzbicki R, Boxall ABA, Mølhave K (2011) Characterisation of nanomaterials in food by electron microscopy. TrAC Trends in Analytical Chemistry 30 (1) 28-43. 13. Horn AF, Nielsen NS, Andersen U, Søgaard LH, Horsewell A, Jacobsen C (2011) Oxidative stability of 70% fish oil-in-water emulsions: Impact of emulsifiers and pH. European Journal of Lipid Science and Technology 113 (10) 1243–1257. 14. Jensen LHS, Nielsen J, Jørgensen BM, Frosch S (2010) Cod and rainbow trout as freeze-chilled meal elements. Journal of the Science of Food and Agriculture 90 (3) 376-384. Conference proceedings 1. Kasama T, Gamaletsos P, Escrig S, Wenzell B, Jensen LHS, Meibom A, Sokaras D, Weng T-C, Dimitriadis D, Godelitsas A (2018). Nanoscale observations of ‘invisible gold’ from the Olympias mine, Greece. Nordic Geological Winter Meeting 2018, Kongens Lyngby, Denmark. 2. Cheng T, Plane F, Jensen LHS, van den Brandt B, Comment A, Meibom A (2017). A new passive system for contamination-free long-distance cryo-transfer of biological tissues. IOP Conf. Series. Materials Science and Engineering 278 012123. 3. Jensen LHS, Vizcay-Barrena G, Skjolding LM, Sørensen SN, Thit A, Hjorth R, Købler C, Mølhave K, Fleck RA, Meibom A, Baun A (2016). SSOM Interdisciplinary Symposium on 3D Microscopy, Les Diablerets, Switzerland. 4. Jensen LHS, Plane F, Cheng T, Escrig S, Comment A, van den Brandt B, Humbel BM, Meibom A (2016). En route to ion microprobe analysis of soluble compounds at single cell level: The CryoNanoSIMS. SSOM Interdisciplinary Symposium on 3D Microscopy, Les Diablerets, Switzerland. 5. Jensen LHS, Plane F, Cheng T, Escrig S, Comment A, van den Brandt B, Humbel BM, Meibom A (2016). En route to ion microprobe analysis of soluble compounds at single cell level: The CryoNanoSIMS. The 16th European Microscopy Congress, Lyon, France. 6. Cheng T, Plane F, Jensen L, Escrig S, Humbel BM, van den Brandt B, Comment A, Meibom A (2016). Realization of sub-cellular resolution cryogenic ion microprobeimaging with vitrified samples. Chianti Workshop Magnetic Resonance for Cellular Structural Biology Principina Terra (Grosseto), Italy. 7. Jensen LS, Sørensen SN, Thit A, Skjolding LM, Købler C, Mølhave K, Baun A (2014). Localization and analysis of engineered nanoparticles in Daphnia magna. 18th International Microscopy Congress, Prague 8. Jensen LHS, Sørensen SN, Hartmann NB, Baun A, Fleck RA (2014) Towards localization and analysis of engineered silver nanoparticles in Pseudokirchneriella subcapitata. 18th International Microscopy Congress, Prague 9. Jensen LHS, Sørensen SN, Hartmann NB, Baun A, Fleck RA (2014) Localization and analysis of engineered silver nanoparticles in Pseudokirchneriella subcapitata. Scandem2014. The annual meeting of the Nordic Microscopy Society 10. Jensen LHS, Loussert C, Humbel BM, Horn AF, Jacobsen C, Nielsen NS, Horsewell A (2013) Ultrastructure of oil in water emulsions. DGE – German Society for Electron Microscopy Proceedings of MC2013 Regensburg, Germany 361-362 11. Jensen LHS, Loussert C, Humbel B, Horn AF, Nielsen NS, Jacobsen C, Horsewell A (2013) Ultra structure of oil/water emulsions. Scandem2013. The annual meeting of the Nordic Microscopy Society 30 12. Jensen LHS, Loussert C, Humbel B, Horn AF, Nielsen NS, Jacobsen C, Horsewell A (2013) Ultra structure of oil-in-water emulsions; a compararison of different microscopy- and preparation methods. Scandem2013. The annual meeting of the Nordic Microscopy Society 30 13. Horn AF, Nielsen NS, Jensen LHS, Horsewell A, Jacobsen C (2012) Emulsification technique affects oxidative stability of fish oil-in-water emulsions. Science and Technology of Food Emulsions, London 14. Pedersen CL, Dezhao L, Hansen, MJ, Feilberg A, Jensen LHS, Guldberg LB, Schramm A, Nielsen LP (2012) Sulfide oxidation in a biofilter. 14th International Symposium on Microbial Ecology, Copenhagen 15. Jensen LHS, Loussert C, Horn AF, Jacobsen C, Nielsen NS, Horsewell A (2012) The structure of omega3 food emulsions. Proceedings of the 15th European Microscopy Congress, Manchester, UK, 1097 16. Jensen, LHS, Horn AF, Jacobsen C, Nielsen NS, Horsewell A (2011) Cryo-FIB SEM for Characterization of the Structure of Fish Oil Emulsions. DGE – German Society for Electron Microscopy Proceedings of MC 2011 Kiel, Germany Vol.3 Material Science M7-P633 17. Horn AF, Nielsen NS, Jensen LHS, Horsewell A, Jacobsen C (2011) Emulsification technique affects oxidative stability of fish oil-in-water emulsion. 102nd AOCS Annual Meeting & Expo, Ohio, USA. 18. Horn AF, Nielsen NS, Andersen U, Jensen LHS, Horsewell A, Jacobsen, C (2011) Lipid oxidation in omega-3 emulsions prepared with milk proteins. 26th Nordic LipidFORUM Symposium, Ålesund, Norway 19. Soegaard LH, Horn AF, Jacobsen, C, Nielsen, NS, Horsewell A (2010) Characterization of Emulsions of Fish Oil and Water by Cryo Scanning Electron Microscopy. 17th International Microscopy Congress, Rio de Janeiro 20. Jensen LHS, Nielsen J, Jørgensen BM, Frosch S (2009) Quality effect of freeze-chilling in cod and rainbow trout. 3rd Joint Trans-Atlantic Fisheries Technology Conference, 2009, Copenhagen