Immobilization of natural lipid biomembranes and their interactions with choline carboxylates. A nanoplasmonic sensing study
| Autor: | Filip Duša, Michal Roth, Susanne K. Wiedmer, Wen Chen, Joanna Witos, Antti H. Rantamäki, Evangelos Sklavounos, Alistair W. T. King |
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| Přispěvatelé: | Czech Academy of Sciences, University of Helsinki, Department of Bioproducts and Biosystems, Neste Oil Oyj, Aalto-yliopisto, Aalto University, Department of Chemistry, HUS Head and Neck Center |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Nanoplasmonic sensing
Interaction Sonication 116 Chemical sciences Biophysics Membrane Lipids/chemistry LIPOSOMES 02 engineering and technology Saccharomyces cerevisiae Cell Membrane/chemistry Ionic liquid 010402 general chemistry MEMBRANES 01 natural sciences Biochemistry TOXICITY Choline VESICLES Cell membrane chemistry.chemical_compound Membrane Lipids Immobilization Biomimetic Materials DEFORMATION CAPILLARIES medicine Animals Lipid bilayer Choline/analogs & derivatives Natural lipid biomembrane Biomimetic Materials/chemistry Liposome Chemistry Vesicle Cell Membrane Biological membrane Cell Biology 021001 nanoscience & nanotechnology 0104 chemical sciences medicine.anatomical_structure Membrane IONIC LIQUIDS Cattle Choline carboxylate 0210 nano-technology Liposomes/chemistry |
| Zdroj: | Duša, F, Chen, W, Witos, J, Rantamäki, A H, King, A W T, Sklavounos, E, Roth, M & Wiedmer, S K 2020, ' Immobilization of natural lipid biomembranes and their interactions with choline carboxylates. A nanoplasmonic sensing study ', Biochimica et Biophysica Acta-Biomembranes, vol. 1862, no. 2, 183115 . https://doi.org/10.1016/j.bbamem.2019.183115 |
| DOI: | 10.1016/j.bbamem.2019.183115 |
| Popis: | The cell membrane is mainly composed of lipid bilayers with inserted proteins and carbohydrates. Lipid bilayers made of purified or synthetic lipids are widely used for estimating the effect of target compounds on cell membranes. However, the composition of such biomimetic membranes is much simpler than the composition of biological membranes. Interactions between compounds and simple composition biomimetic membranes might not demonstrate the effect of target compounds as precisely as membranes with compositions close to real organisms. Therefore, the aim of our study is to construct biomimetic membrane closely mimicking the state of natural membranes. Liposomes were prepared from lipids extracted from L-α-phosphatidylcholine, Escherichia coli, yeast (Saccharomyces cerevisiae) and bovine liver cells through agitation and sonication. They were immobilized onto silicon dioxide (SiO2) sensor surfaces using N-(2-hydroxyethyl)piperazine-N′-2-ethanesulfonic acid buffer with calcium chloride. The biomimetic membranes were successfully immobilized onto the SiO2 sensor surface and detected by nanoplasmonic sensing. The immobilized membranes were exposed to choline carboxylates. The membrane disruption effect was, as expected, more pronounced with increasing carbohydrate chain length of the carboxylates. The results correlated with the toxicity values determined using Vibrio fischeri bacteria. The yeast extracted lipid membranes had the strongest response to introduction of choline laurate while the bovine liver lipid extracted liposomes were the most sensitive towards the shorter choline carboxylates. This implies that the composition of the cell membrane plays a crucial role upon interaction with choline carboxylates, and underlines the necessity of testing membrane systems of different origin to obtain an overall image of such interactions. |
| Databáze: | OpenAIRE |
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