RT Journal Article
T1 CTAB stabilizes silver on gold nanorods
A1 Ye, Weixiang
A1 Krüger, Katja
A1 Sánchez-Iglesias, Ana
A1 Jia, Xiaoyu
A1 García García, María Isabel
A1 Sutter, Johannes
A1 Celiksoy, Sirin
A1 Foerster, Benjamin
A1 Liz-Marzán, Luis
A1 Ahijado Guzmán, Rubén
A1 Sönnichsen, Carsten
AB We present a study that allows us to explain the chemical changes behind the often observed but so far ununderstood drift of the plasmon resonance of chemically prepared gold nanorods in microfluidic devices. We systematically monitored the evolution of the plasmon scattering signal from thousands of single nanoparticles in parallel, from different gold nanorod batches, prepared by both, silver-assisted and silver-free seeded growth. By varying the experimental conditions, we confirmed the presence of a silver surface layer for nanorods prepared by the silver-assisted method. Although the silver layer is initially protected by the surfactant CTAB, it gets oxidized as soon as CTAB desorbs because of a reduced concentration in the flowing solution.
PB ACS Publications
SN 0897-4756
YR 2020
FD 2020
LK https://hdl.handle.net/20.500.14352/93220
UL https://hdl.handle.net/20.500.14352/93220
LA eng
NO Ye, W.; Krüger, K.; Sánchez-Iglesias, A.; García, I.; Jia, X.; Sutter, J.; Celiksoy, S.; Foerster, B.; Liz-Marzán, L. M.; Ahijado-Guzmán, R.; Sönnichsen, C. CTAB Stabilizes Silver on Gold Nanorods. Chem. Mater. 2020, 32, 1650-1656 DOI:10.1021/acs.chemmater.9b05139.
NO Johannes Gutenberg-University Mainz (Alemania)
DS Docta Complutense
RD 15 abr 2025