BELLO, Gianluca, Francesca CAVALLINI, Lea Ann DAILEY a Eva-Kathrin EHMOSER. Supported polymer/lipid hybrid bilayers formation resembles a lipid-like dynamic by reducing the molecular weight of the polymer. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES. AMSTERDAM: ELSEVIER SCIENCE BV, 2021, roč. 1863, č. 1, s. 1-8. ISSN 0005-2736. Dostupné z: https://dx.doi.org/10.1016/j.bbamem.2020.183472. |
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@article{2384339, author = {Bello, Gianluca and Cavallini, Francesca and Dailey, Lea Ann and Ehmoser, EvaandKathrin}, article_location = {AMSTERDAM}, article_number = {1}, doi = {http://dx.doi.org/10.1016/j.bbamem.2020.183472}, keywords = {Supported bilayer; QCM-D; SANS; Hybrid lipid-polymer bilayer; Langmuir films; Amphiphilic copolymer}, language = {eng}, issn = {0005-2736}, journal = {BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES}, title = {Supported polymer/lipid hybrid bilayers formation resembles a lipid-like dynamic by reducing the molecular weight of the polymer}, url = {https://www.sciencedirect.com/science/article/pii/S0005273620303151?via%3Dihub}, volume = {1863}, year = {2021} }
TY - JOUR ID - 2384339 AU - Bello, Gianluca - Cavallini, Francesca - Dailey, Lea Ann - Ehmoser, Eva-Kathrin PY - 2021 TI - Supported polymer/lipid hybrid bilayers formation resembles a lipid-like dynamic by reducing the molecular weight of the polymer JF - BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES VL - 1863 IS - 1 SP - 1-8 EP - 1-8 PB - ELSEVIER SCIENCE BV SN - 00052736 KW - Supported bilayer KW - QCM-D KW - SANS KW - Hybrid lipid-polymer bilayer KW - Langmuir films KW - Amphiphilic copolymer UR - https://www.sciencedirect.com/science/article/pii/S0005273620303151?via%3Dihub N2 - Amphiphilic block copolymers form self-assembled bilayers even in combination with phospholipids. They represent an attractive alternative to native lipid-based membrane systems for supported bilayer formation with applications in biomedical research, sensoring and drug delivery. Their enhanced stability and excellent mechanical properties are linked to their higher molecular weight which generates thicker bilayers. Hypothesis: It is hypothesized that reducing the molecular weight of the polymer facilitates the formation of a thinner, more homogeneous polymer/lipid hybrid bilayer which would benefit the formation of supported bilayers on silicon oxide. Experiment: We investigated hybrid bilayers composed of mixtures of 1-palmitoyl-2-oleoyl-glycero-3-phosphocholine and increasing amounts of a low molecular weight polybutadiene-b-polyethylene oxide copolymer (1050 g/mol). By assessing the bilayer thickness and the molecular packing behavior we sought to demonstrate how reducing the polymer molecular weight increases the tendency to form supported hybrid bilayers in a lipid-like manner. Findings: The formation of a supported hybrid bilayers occurs at polymer contents < 70 mol% in a lipid-like fashion and is proportional to the cohesive forces between the bilayer components and inversely related to the bilayer hydrophobic core thickness and the extended brush regime of the PEGylated polymeric headgroup. ER -
BELLO, Gianluca, Francesca CAVALLINI, Lea Ann DAILEY a Eva-Kathrin EHMOSER. Supported polymer/lipid hybrid bilayers formation resembles a lipid-like dynamic by reducing the molecular weight of the polymer. \textit{BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES}. AMSTERDAM: ELSEVIER SCIENCE BV, 2021, roč.~1863, č.~1, s.~1-8. ISSN~0005-2736. Dostupné z: https://dx.doi.org/10.1016/j.bbamem.2020.183472.
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