Ultrasensitive and reproducible SERS platform of coupled Ag grating with multibranched Au nanoparticles

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F17%3A43914149" target="_blank" >RIV/60461373:22310/17:43914149 - isvavai.cz</a>
Alternative codes found
RIV/60461373:22330/17:43914149 RIV/60461373:22810/17:43914149 RIV/68407700:21230/17:00312363
Result on the web
<a href="http://dx.doi.org/10.1039/c7cp01828b" target="_blank" >http://dx.doi.org/10.1039/c7cp01828b</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1039/c7cp01828b" target="_blank" >10.1039/c7cp01828b</a>

Result language
angličtina
Original language name
Ultrasensitive and reproducible SERS platform of coupled Ag grating with multibranched Au nanoparticles
Original language description
Surface-enhanced Raman scattering (SERS) spectroscopy is an extremely sensitive analytical technique that is capable of identifying the vibration signatures of target molecules up to single-molecule sensitivity. In this work, the ultrahigh sensitivity of SERS has been achieved through the immobilization of sharp-edges specific nanoparticles - so-called gold multibranched NPs (AuMs) on the silver grating surface through the biphenyl dithiol. This approach allows combining the extremely high SERS enhancement factor (better than that in the case of AuMs immobilized on the flat Ag film) with perfect reproducibility of Raman signals. The grating was created on the polymer substrate using the excimer laser modification and further metal deposition and has an "active'' area 5 x 10 mm(2), enabling the macroscale SERS substrate preparation. The wet-chemistry synthesized AuMs were then immobilized on the grating surface and the produced structure allows SERS measurements with a portable Raman spectrophotometer. The prepared structures were checked using the AFM, UV-Vis, and Raman spectroscopy techniques.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
20501 - Materials engineering

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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