Advantages and drawbacks of the use of immobilized “green-synthesized” silver nanoparticles on gold nanolayer for near-field vibrational spectroscopic study of riboflavin
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F21%3A00542624" target="_blank" >RIV/61388955:_____/21:00542624 - isvavai.cz</a>
Alternative codes found
RIV/60461373:22340/21:43922371
Result on the web
<a href="http://hdl.handle.net/11104/0320008" target="_blank" >http://hdl.handle.net/11104/0320008</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.apsusc.2021.149832" target="_blank" >10.1016/j.apsusc.2021.149832</a>
Alternative languages
Result language
angličtina
Original language name
Advantages and drawbacks of the use of immobilized “green-synthesized” silver nanoparticles on gold nanolayer for near-field vibrational spectroscopic study of riboflavin
Original language description
Nanoscopic near-field techniques are powerful tools in the chemical nanoanalysis thanks to their lateral resolution and the ability to detect trace amounts limiting to the single-molecule level and study molecular interactions at the same level. To achieve these goals, a gap mode is preferred, in which a large-scale plasmonic enhancing substrate with the adsorbed analyte is used and the Au/Ag scanning tip is approached to obtain high enhancement of the local electric field and form the hot–spot between the Au/Ag tip and the Au/Ag plasmonic surface. The appropriate enhancing substrate is crucial considering the enhancement factor and the optical response quality. This study focused on the riboflavin detection by tip-enhanced Raman scattering (TERS) and scanning near-field infrared microscopy (SNIM), immobilized Ag nanoparticles (NPs), synthesized by flavonoids reduction were employed. AgNPs immobilized on Au nanolayer via a dithiol-linker represent effective substrate exhibiting appropriate morphology and optical properties. SNIM provided insight into the intensity distribution of the riboflavin optical response. The optical amplitude and phase images indicate better adsorption of riboflavin on the AgNP-coated surface than on the Au-coated glass. TERS shows interferences of flavonoid residues on some substrates, but the riboflavin limit of detection was improved compared to surface-enhanced Raman scattering.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10403 - Physical chemistry
Result continuities
Project
<a href="/en/project/LM2018124" target="_blank" >LM2018124: Nanomaterials and Nanotechnologies for Environment Protection and Sustainable Future</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Applied Surface Science
ISSN
0169-4332
e-ISSN
1873-5584
Volume of the periodical
557
Issue of the periodical within the volume
AUG 2021
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
10
Pages from-to
149832
UT code for WoS article
000651208200006
EID of the result in the Scopus database
2-s2.0-85104711151