Mechanisms of Aggregation of Cysteine Functionalized Gold Nanoparticles
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F14%3A10288976" target="_blank" >RIV/00216208:11320/14:10288976 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1021/jp502401w" target="_blank" >http://dx.doi.org/10.1021/jp502401w</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/jp502401w" target="_blank" >10.1021/jp502401w</a>
Alternative languages
Result language
angličtina
Original language name
Mechanisms of Aggregation of Cysteine Functionalized Gold Nanoparticles
Original language description
The interaction of gold nanoparticles (AuNPs) with cysteine and its derivatives is the basis of a number of bionanotechnologies, and for these, the most important process is aggregation (or antiaggregation), which enables an array of colorimetric detection methods. When AuNPs were functionalized with cysteine, its dimer cystine, or the cysteine-derived tripeptide, glutathione, three different mechanisms of aggregation were observed. Both cysteine and glutathione induced aggregation of AuNPs without further pH modification: the first by interparticle zwitterionic interaction and the second by interparticle hydrogen bonding. Cystine, however, did not induce aggregation, although it dissociated into two cysteinate moieties upon adsorption on the AuNPs, which appear to be chemically identical to cysteinate produced from cysteine adsorption. We show that the difference is due to the lower coverage of cysteinate from cystine and differences in charge states of the adsorbates. On modifying th
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BM - Solid-state physics and magnetism
OECD FORD branch
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Result continuities
Project
<a href="/en/project/LG12003" target="_blank" >LG12003: Materials science beamline at synchrotron Elettra in Trieste</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Physical Chemistry C
ISSN
1932-7447
e-ISSN
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Volume of the periodical
118
Issue of the periodical within the volume
19
Country of publishing house
US - UNITED STATES
Number of pages
7
Pages from-to
10481-10487
UT code for WoS article
000336198900073
EID of the result in the Scopus database
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