Gold Film over SiO(2) Nanospheres-New Thermally Resistant Substrates for Surface-Enhanced Raman Scattering (SERS) Spectroscopy

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F19%3A10403878" target="_blank" >RIV/00216208:11320/19:10403878 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21340/19:00335427
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=a22E.wQLT5" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=a22E.wQLT5</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/nano9101426" target="_blank" >10.3390/nano9101426</a>

Result language
angličtina
Original language name
Gold Film over SiO(2) Nanospheres-New Thermally Resistant Substrates for Surface-Enhanced Raman Scattering (SERS) Spectroscopy
Original language description
Surface-enhanced Raman scattering (SERS) sensors are constructed from metallic plasmonic nanostructures providing high sensitivity and spectral reproducibility. In many cases, irradiation of the SERS substrate by the laser beam leads to an increase of the local temperature and consequently to thermal degradation of metallic nanostructure itself and/or adsorbed analyte. We report here a "bottom-up" technique to fabricate new thermally resistant gold "film over nanosphere" (FON) substrates for SERS. We elaborated the simple and straightforward method of preparation of homogeneously and closely packed monolayer of SiO(2) nanoparticles (50 nm in diameter) and covered it by a thin (20 nm) layer of magnetron-sputtered gold. The spectral testing using biologically important molecules (methylene blue, cationic porphyrin, and fungicide 1-methyl-1H-benzimidazole-2-thiol) proved a sensitivity and reproducibility of our AuSiO(2) substrates. The main advantage of such SERS-active substrates is high thermal stability and low intensity of background and signal of graphitic carbon.
Czech name
—
Czech description
—

Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10610 - Biophysics

Project
<a href="/en/project/GA18-10897S" target="_blank" >GA18-10897S: Novel approaches to surface-enhanced optical spectroscopy for the ultimate and specific biosensing</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Similar results(10)