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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

  • Czech description

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

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

  • 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