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@ARTICLE{Silin:26705,
author = {Silin, F. H. and Wieder, H. and Woodward, J. T. and
Valincius, G. and Offenhäusser, A. and Plant, A. L.},
title = {{T}he role of surface free energy on the formation of
hybrid bilayer membranes},
journal = {Journal of the American Chemical Society},
volume = {124},
issn = {0002-7863},
address = {Washington, DC},
publisher = {American Chemical Society},
reportid = {PreJuSER-26705},
pages = {14676},
year = {2002},
note = {Record converted from VDB: 12.11.2012},
abstract = {The interaction of small phospholipid vesicles with
well-characterized surfaces has been studied to assess the
effect of the surface free energy of the underlying
monolayer on the formation of phospholipid/alkanethiol
hybrid bilayer membranes (HBMs). The surface free energy was
changed in a systematic manner using single-component
alkanethiol monolayers and monolayers of binary mixtures of
thiols. The binary surfaces were prepared on gold by
self-assembly from binary solutions of the thiols
HS-(CH(2))(n)()-X (n = 11, X = CH(3) or OH) in THF. Surface
plasmon resonance (SPR), electrical capacitance, and atomic
force microscopy (AFM) measurements were used to
characterize the interaction of
palmitoyl,oleoyl-phosphatidylcholine (POPC) vesicles with
the surfaces. For all surfaces examined, it appears that the
polar part of surface energy influences the nature of the
POPC assembly that associates with the surface. Comparison
of optical, capacitance, and AFM data suggests that vesicles
can remain intact or partially intact even at surfaces with
a contact angle with water of close to 100 degrees. In
addition, comparison of the alkanethiols of different chain
lengths and the fluorinated compound
HS-(CH(2))(2)-(CF(2))(8)-CF(3) that characterize with a low
value of the polar part of the surface energy suggests that
the quality of the underlying monolayer in terms of number
of defects has a significant influence on the packing
density of the resulting HBM layer.},
keywords = {Adsorption / Alkanes: chemistry / Electric Capacitance /
Hydrocarbons, Fluorinated: chemistry / Kinetics / Lipid
Bilayers: chemistry / Membranes: chemistry / Microscopy,
Atomic Force / Phosphatidylcholines: chemistry / Sulfhydryl
Compounds: chemistry / Surface Plasmon Resonance / Surface
Properties / Thermodynamics / Alkanes (NLM Chemicals) /
Hydrocarbons, Fluorinated (NLM Chemicals) / Lipid Bilayers
(NLM Chemicals) / Phosphatidylcholines (NLM Chemicals) /
Sulfhydryl Compounds (NLM Chemicals) / n-dodecane (NLM
Chemicals) / 1-palmitoyl-2-oleoylphosphatidylcholine (NLM
Chemicals) / J (WoSType)},
cin = {ISG-2},
ddc = {540},
cid = {I:(DE-Juel1)VDB42},
pnm = {Materialien, Prozesse und Bauelemente für die Mikro- und
Nanoelektronik},
pid = {G:(DE-Juel1)FUEK252},
shelfmark = {Chemistry, Multidisciplinary},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:12465979},
UT = {WOS:000179661000040},
doi = {10.1021/ja026585+},
url = {https://juser.fz-juelich.de/record/26705},
}