Interfacial surface properties of thiol-protected gold nanoparticles: A molecular probe EPR approach Full article
Journal |
Langmuir
ISSN: 0743-7463 |
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Output data | Year: 2008, Volume: 24, Number: 3, Pages: 609-612 Pages count : 4 DOI: 10.1021/la702823n | ||||||
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Abstract:
We present a molecular probe technique for accessing interfacial surface electrostatics of ligand-protected gold nanoparticles. A series of ligands with variable length of the hydrocarbon bridge between the anchoring sulfur and the reporting pH-sensitive nitroxide is described. The protonation state of this probe is directly observed by EPR spectroscopy. For tiopronin-protected An nanoparticles, we observed an increase in pK(a) of up to ca. 1.1 pH units that was affected by the position of the reporter moiety with respect to the monolayer interface.
Cite:
Khlestkin V.K.
, Polienko J.F.
, Voinov M.A.
, Smirnov A.I.
, Chechik V.
Interfacial surface properties of thiol-protected gold nanoparticles: A molecular probe EPR approach
Langmuir. 2008. V.24. N3. P.609-612. DOI: 10.1021/la702823n WOS Scopus РИНЦ
Interfacial surface properties of thiol-protected gold nanoparticles: A molecular probe EPR approach
Langmuir. 2008. V.24. N3. P.609-612. DOI: 10.1021/la702823n WOS Scopus РИНЦ
Dates:
Published online: | Jan 12, 2008 |
Published print: | Feb 1, 2008 |
Identifiers:
Web of science | WOS:000252777700003 |
Scopus | 2-s2.0-39449132105 |
Elibrary | 13580507 |
OpenAlex | W2042771078 |