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@ARTICLE{Koposova:150975,
author = {Koposova, Ekaterina and Kisner, Alexandre and Shumilova,
Galina and Ermolenko, Yury and Offenhäusser, Andreas and
Mourzina, Youlia},
title = {{O}leylamine-{S}tabilized {G}old {N}anostructures for
{B}ioelectronic {A}ssembly. {D}irect {E}lectrochemistry of
{C}ytochrome c},
journal = {The journal of physical chemistry / C},
volume = {117},
number = {27},
issn = {1932-7455},
address = {Washington, DC},
publisher = {Soc.},
reportid = {FZJ-2014-01006},
pages = {13944 - 13951},
year = {2013},
abstract = {Methods to prepare ultrathin gold nanowires and
monodisperse nanoparticles based on the intrinsic property
of gold(I) ions to form aurophilic interactions stabilized
by oleylamine and long-chain alkylamine have been widely
explored. Due to the low thermodynamic stability of the high
aspect ratio nanostructures, their conjugation and assembly
into functional nanosystems have not been explored so far.
One of the reasons for this is that the surface of the
nanostructures is insulated by stabilization compounds,
which preserve the integrity of the nanostructures but at
the same time form an insulating barrier in electronic and
electrochemical systems in contact areas and for the charge
transfer reactions. Conjugation of a metalloprotein
cytochrome c (Cyt c) with oleylamine-stabilized gold
ultrathin nanowires and nanoparticles into a
bioelectrochemically active nanoarchitecture is presented
here for the first time. Methods of preparing and assembling
the ultrathin nanowires and nanoparticles on the thin-film
gold electrodes are shown. Thermodynamic and kinetic
parameters were obtained for the direct electron transfer
reaction of cyt c on these surfaces. Nanowires are
responsible for an approximately −20 mV shift in the redox
potential of the ferri/ferro-cyt c couple relative to a
thin-film gold electrode.},
cin = {PGI-8 / ICS-8 / JARA-FIT / PGI-5},
ddc = {540},
cid = {I:(DE-Juel1)PGI-8-20110106 / I:(DE-Juel1)ICS-8-20110106 /
$I:(DE-82)080009_20140620$ / I:(DE-Juel1)PGI-5-20110106},
pnm = {423 - Sensorics and bioinspired systems (POF2-423) / 453 -
Physics of the Cell (POF2-453)},
pid = {G:(DE-HGF)POF2-423 / G:(DE-HGF)POF2-453},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000321883600021},
doi = {10.1021/jp401764p},
url = {https://juser.fz-juelich.de/record/150975},
}