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Spatiotemporal Kinetics of Supported Lipid Bilayer Formation on Glass via Vesicle Adsorption and Rupture Full article

Journal Journal of Physical Chemistry Letters
ISSN: 1948-7185
Output data Year: 2018, Volume: 9, Number: 17, Pages: 5143-5149 Pages count : 7 DOI: 10.1021/acs.jpclett.8b02092
Tags Cytology Fluorescence microscopy Intelligent systems Lipid bilayers Monte Carlo methods Refractive index Silica
Authors Mapar Mokhtar 1 , Jõemetsa Silver 1 , Pace Hudson 1 , Zhdanov Vladimir P. 1,2 , Agnarsson Björn 1 , Höök Fredrik 1
Affiliations
1 Division of Biological Physics, Department of Physics, Chalmers University of Technology, 41296 Göteborg, Sweden
2 Boreskov Institute of Catalysis, Russian Academy of Sciences, Novosibirsk 630090, Russia

Funding (2)

1 Swedish Research Council 2014-5557
2 Stiftelsen för strategisk forskning RMA11-0104

Abstract: Supported lipid bilayers (SLBs) represent one of the most popular mimics of the cell membrane. Herein, we have used total internal reflection fluorescence microscopy for in-depth characterization of the vesicle-mediated SLB formation mechanism on a common silica-rich substrate, borosilicate glass. Fluorescently labeling a subset of vesicles allowed us to monitor the adsorption of individual labeled vesicles, resolve the onset of SLB formation from small seeds of SLB patches, and track their growth via SLB-edge-induced autocatalytic rupture of adsorbed vesicles. This made it possible to perform the first quantitative measurement of the SLB front velocity, which is shown to increase up to 1 order of magnitude with time. This effect can be classified as dramatic because in many other physical, chemical, or biological kinetic processes the front velocity is either constant or decreasing with time. The observation was successfully described with a theoretical model and Monte Carlo simulations implying rapid local diffusion of lipids upon vesicle rupture.
Cite: Mapar M. , Jõemetsa S. , Pace H. , Zhdanov V.P. , Agnarsson B. , Höök F.
Spatiotemporal Kinetics of Supported Lipid Bilayer Formation on Glass via Vesicle Adsorption and Rupture
Journal of Physical Chemistry Letters. 2018. V.9. N17. P.5143-5149. DOI: 10.1021/acs.jpclett.8b02092 WOS Scopus РИНЦ AN PMID OpenAlex
Dates:
Submitted: Jul 4, 2018
Accepted: Aug 23, 2018
Published online: Aug 23, 2018
Published print: Sep 6, 2018
Identifiers:
Web of science: WOS:000444353900051
Scopus: 2-s2.0-85052919155
Elibrary: 35720997
Chemical Abstracts: 2018:1576379
PMID: 30137991
OpenAlex: W2888667343
Citing:
DB Citing
Web of science 21
Scopus 21
Elibrary 19
OpenAlex 25
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