SE(R)RS microspectroscopy of porphyrins on immobilized Au nanoparticles: Testing spectral sensitivity and reproducibility

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F12%3A10126644" target="_blank" >RIV/00216208:11320/12:10126644 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.colsurfa.2012.03.012" target="_blank" >http://dx.doi.org/10.1016/j.colsurfa.2012.03.012</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.colsurfa.2012.03.012" target="_blank" >10.1016/j.colsurfa.2012.03.012</a>

Jazyk výsledku

angličtina

Název v původním jazyce

SE(R)RS microspectroscopy of porphyrins on immobilized Au nanoparticles: Testing spectral sensitivity and reproducibility

Popis výsledku v původním jazyce

Although surface-enhanced (resonance) Raman scattering SE(R)RS spectroscopy is currently employed as a (bio)analytical technique, designing and optimizing of cheaply and easily available SERS-active substrates are still in progress. In this paper, we tested SERS substrates prepared by immobilization of Au colloidal nanoparticles via aminosilane on glass from the point of view of their spectral sensitivity and reproducibility. This preparation procedure is easy, cheap and provides uniform SERS substrateson a large scale. We measured SE(R)RS spectra of free-base cationic 5,10,15,20-tetrakis(1-methyl-4-pyridyl)porphyrin (TMPyP) as a testing biomolecule using a confocal Raman microspectrometer and two excitation wavelengths (514.5 and 632.8 nm). SERS microspectroscopy had several advantages in comparison to macro-Raman technique: namely the possibility of spectral mapping over the surface, shorter collection times and the absence of strong Raman bands from the glass support. Analytical en

Název v anglickém jazyce

SE(R)RS microspectroscopy of porphyrins on immobilized Au nanoparticles: Testing spectral sensitivity and reproducibility

Popis výsledku anglicky

Although surface-enhanced (resonance) Raman scattering SE(R)RS spectroscopy is currently employed as a (bio)analytical technique, designing and optimizing of cheaply and easily available SERS-active substrates are still in progress. In this paper, we tested SERS substrates prepared by immobilization of Au colloidal nanoparticles via aminosilane on glass from the point of view of their spectral sensitivity and reproducibility. This preparation procedure is easy, cheap and provides uniform SERS substrateson a large scale. We measured SE(R)RS spectra of free-base cationic 5,10,15,20-tetrakis(1-methyl-4-pyridyl)porphyrin (TMPyP) as a testing biomolecule using a confocal Raman microspectrometer and two excitation wavelengths (514.5 and 632.8 nm). SERS microspectroscopy had several advantages in comparison to macro-Raman technique: namely the possibility of spectral mapping over the surface, shorter collection times and the absence of strong Raman bands from the glass support. Analytical en

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BO - Biofyzika

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2012

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Colloids and Surfaces A: Physicochemical and Engineering Aspects

ISSN

0927-7757

e-ISSN

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Svazek periodika

402

Číslo periodika v rámci svazku

Neuveden

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

5

Strana od-do

24-28

Kód UT WoS článku

000304840600003

EID výsledku v databázi Scopus

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