Interfacial and structural characteristics of polyelectrolyte multilayers used as cushions for supported lipid bilayers

Magdalena Wlodek; M Kolasinska-Sojka; M Wasilewska; Oier Bikondoa; Wuge Briscoe; P Warszynski

doi:10.1039/C7SM01645J

Interfacial and structural characteristics of polyelectrolyte multilayers used as cushions for supported lipid bilayers

Magdalena Wlodek, M Kolasinska-Sojka, M Wasilewska, Oier Bikondoa, Wuge Briscoe, P Warszynski

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Abstract

The surface properties of polyelectrolyte multilayers (PEMs) obtained via sequential adsorption of oppositely charged polyions from their solutions and used as cushions for supported lipid bilayers were investigated. Five types of polyelectrolytes were used: cationic polyethyleneimine (PEI), poly(diallyldimethylammonium)chloride (PDADMAC), and poly-L-lysine hydrobromide (PLL); and anionic polysodium 4-styrenesulfonate (PSS) and poly-L-glutamic acid sodium (PGA). The wettability and surface free energy of the PEMs were determined by contact angle measurements using sessile drop analysis. Electrokinetic characterisation of the studied films was performed by streaming potential measurements of selected multilayers and the structure of the polyelectrolyte multilayer was characterized by synchrotron X-ray reflectometry. The examined physicochemical properties of the PEMs were correlated with the kinetics of the formation of supported lipid bilayers atop the PEM cushion.

Original language	English
Pages (from-to)	7848-7855
Number of pages	8
Journal	Soft Matter
Volume	13
Issue number	43
Early online date	20 Sept 2017
DOIs	https://doi.org/10.1039/C7SM01645J
Publication status	Published - 21 Nov 2017

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(1st Grant NanoSurF reFEC) Nanostructures confined in micro- and nano-cavities: Direct measurement of consequent surface forces
Briscoe, W. H.
1/04/10 → 1/10/12
Project: Research

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@article{d5725702775945779bfd8dcdaeea3ac2,

title = "Interfacial and structural characteristics of polyelectrolyte multilayers used as cushions for supported lipid bilayers",

abstract = "The surface properties of polyelectrolyte multilayers (PEMs) obtained via sequential adsorption of oppositely charged polyions from their solutions and used as cushions for supported lipid bilayers were investigated. Five types of polyelectrolytes were used: cationic polyethyleneimine (PEI), poly(diallyldimethylammonium)chloride (PDADMAC), and poly-L-lysine hydrobromide (PLL); and anionic polysodium 4-styrenesulfonate (PSS) and poly-L-glutamic acid sodium (PGA). The wettability and surface free energy of the PEMs were determined by contact angle measurements using sessile drop analysis. Electrokinetic characterisation of the studied films was performed by streaming potential measurements of selected multilayers and the structure of the polyelectrolyte multilayer was characterized by synchrotron X-ray reflectometry. The examined physicochemical properties of the PEMs were correlated with the kinetics of the formation of supported lipid bilayers atop the PEM cushion.",

author = "Magdalena Wlodek and M Kolasinska-Sojka and M Wasilewska and Oier Bikondoa and Wuge Briscoe and P Warszynski",

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doi = "10.1039/C7SM01645J",

language = "English",

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TY - JOUR

T1 - Interfacial and structural characteristics of polyelectrolyte multilayers used as cushions for supported lipid bilayers

AU - Wlodek, Magdalena

AU - Kolasinska-Sojka, M

AU - Wasilewska, M

AU - Bikondoa, Oier

AU - Briscoe, Wuge

AU - Warszynski, P

PY - 2017/11/21

Y1 - 2017/11/21

N2 - The surface properties of polyelectrolyte multilayers (PEMs) obtained via sequential adsorption of oppositely charged polyions from their solutions and used as cushions for supported lipid bilayers were investigated. Five types of polyelectrolytes were used: cationic polyethyleneimine (PEI), poly(diallyldimethylammonium)chloride (PDADMAC), and poly-L-lysine hydrobromide (PLL); and anionic polysodium 4-styrenesulfonate (PSS) and poly-L-glutamic acid sodium (PGA). The wettability and surface free energy of the PEMs were determined by contact angle measurements using sessile drop analysis. Electrokinetic characterisation of the studied films was performed by streaming potential measurements of selected multilayers and the structure of the polyelectrolyte multilayer was characterized by synchrotron X-ray reflectometry. The examined physicochemical properties of the PEMs were correlated with the kinetics of the formation of supported lipid bilayers atop the PEM cushion.

AB - The surface properties of polyelectrolyte multilayers (PEMs) obtained via sequential adsorption of oppositely charged polyions from their solutions and used as cushions for supported lipid bilayers were investigated. Five types of polyelectrolytes were used: cationic polyethyleneimine (PEI), poly(diallyldimethylammonium)chloride (PDADMAC), and poly-L-lysine hydrobromide (PLL); and anionic polysodium 4-styrenesulfonate (PSS) and poly-L-glutamic acid sodium (PGA). The wettability and surface free energy of the PEMs were determined by contact angle measurements using sessile drop analysis. Electrokinetic characterisation of the studied films was performed by streaming potential measurements of selected multilayers and the structure of the polyelectrolyte multilayer was characterized by synchrotron X-ray reflectometry. The examined physicochemical properties of the PEMs were correlated with the kinetics of the formation of supported lipid bilayers atop the PEM cushion.

U2 - 10.1039/C7SM01645J

DO - 10.1039/C7SM01645J

M3 - Article (Academic Journal)

SN - 1744-683X

VL - 13

SP - 7848

EP - 7855

JO - Soft Matter

JF - Soft Matter

IS - 43

ER -

Interfacial and structural characteristics of polyelectrolyte multilayers used as cushions for supported lipid bilayers

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(1st Grant NanoSurF reFEC) Nanostructures confined in micro- and nano-cavities: Direct measurement of consequent surface forces

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