Abstract
Surface-enhanced Raman spectroscopy (SERS), stemming from the gigantic light energy focusing near the plasmon-active surface, provides the possibility to reveal the presence of targeted analytes under extremely dilute conditions. At present, SERS sensors have been making significant progress regarding practical applications in the analytical and bioanalytical fields. The main delaying factors in SERS development are related to the poor signal reproducibility. Proposed work is aimed at the achievement of highly-reproducible SERS results. The high sensitivity of SERS has been achieved through the immobilization of sharp-edges bimetallic specific nanoparticles-gold/platinum nanourchins (Au@PtNPs), on the gold grating surface, through the 1,4-benzendithiol (BDT) or 4-sulfobenzenediazonium tosylate (ADT-SH). Gold grating, able to support the surface plasmon polariton (SPP) excitation and propagation, was created on the polymer substrate using the excimer laser modification with further metal deposition. Bimetallic nanoparticles, able to efficiently excite the localized surface plasmons (LSPs), were synthesized using the wet chemical approach. Immobilization of Au@PtNPs on the gold grating allows to achieve SPP-LSP coupling and significantly SERS enhancement, with the maintaining of signal reproducibility, provided by the periodical surface. More detailed experiments show that in the case of ADT-SH, the better Au@PtNPs grafting density and SERS enhancement factor were achieved. Moreover, the produced structure allows SERS measurements with a portable Raman spectrophotometer.
| Original language | English |
|---|---|
| Title of host publication | NANOCON 2018 - Conference Proceedings, 10th Anniversary International Conference on Nanomaterials - Research and Application |
| Publisher | TANGER Ltd. |
| Pages | 426-431 |
| Number of pages | 6 |
| ISBN (Electronic) | 9788087294895 |
| Publication status | Published - 1 Jan 2019 |
| Externally published | Yes |
| Event | 10th Anniversary International Conference on Nanomaterials - Research and Application, NANOCON 2018 - Brno, Czech Republic Duration: 17 Oct 2018 → 19 Oct 2018 |
Publication series
| Name | NANOCON 2018 - Conference Proceedings, 10th Anniversary International Conference on Nanomaterials - Research and Application |
|---|
Conference
| Conference | 10th Anniversary International Conference on Nanomaterials - Research and Application, NANOCON 2018 |
|---|---|
| Country | Czech Republic |
| City | Brno |
| Period | 17.10.18 → 19.10.18 |
Fingerprint
Keywords
- Coupling
- Gold gratings
- Multibranched nanoparticles
- Plamonics
- SERS
ASJC Scopus subject areas
- Biotechnology
- Electrical and Electronic Engineering
- Ceramics and Composites
- Electronic, Optical and Magnetic Materials
Cite this
Sensitive sers platform of bimetallic nanoparticles immobilized on the gold grating surface. / Kalachyova, Yevgeniya; Svorcik, Vaclav; Lyutakov, Oleksiy.
NANOCON 2018 - Conference Proceedings, 10th Anniversary International Conference on Nanomaterials - Research and Application. TANGER Ltd., 2019. p. 426-431 (NANOCON 2018 - Conference Proceedings, 10th Anniversary International Conference on Nanomaterials - Research and Application).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Sensitive sers platform of bimetallic nanoparticles immobilized on the gold grating surface
AU - Kalachyova, Yevgeniya
AU - Svorcik, Vaclav
AU - Lyutakov, Oleksiy
PY - 2019/1/1
Y1 - 2019/1/1
N2 - Surface-enhanced Raman spectroscopy (SERS), stemming from the gigantic light energy focusing near the plasmon-active surface, provides the possibility to reveal the presence of targeted analytes under extremely dilute conditions. At present, SERS sensors have been making significant progress regarding practical applications in the analytical and bioanalytical fields. The main delaying factors in SERS development are related to the poor signal reproducibility. Proposed work is aimed at the achievement of highly-reproducible SERS results. The high sensitivity of SERS has been achieved through the immobilization of sharp-edges bimetallic specific nanoparticles-gold/platinum nanourchins (Au@PtNPs), on the gold grating surface, through the 1,4-benzendithiol (BDT) or 4-sulfobenzenediazonium tosylate (ADT-SH). Gold grating, able to support the surface plasmon polariton (SPP) excitation and propagation, was created on the polymer substrate using the excimer laser modification with further metal deposition. Bimetallic nanoparticles, able to efficiently excite the localized surface plasmons (LSPs), were synthesized using the wet chemical approach. Immobilization of Au@PtNPs on the gold grating allows to achieve SPP-LSP coupling and significantly SERS enhancement, with the maintaining of signal reproducibility, provided by the periodical surface. More detailed experiments show that in the case of ADT-SH, the better Au@PtNPs grafting density and SERS enhancement factor were achieved. Moreover, the produced structure allows SERS measurements with a portable Raman spectrophotometer.
AB - Surface-enhanced Raman spectroscopy (SERS), stemming from the gigantic light energy focusing near the plasmon-active surface, provides the possibility to reveal the presence of targeted analytes under extremely dilute conditions. At present, SERS sensors have been making significant progress regarding practical applications in the analytical and bioanalytical fields. The main delaying factors in SERS development are related to the poor signal reproducibility. Proposed work is aimed at the achievement of highly-reproducible SERS results. The high sensitivity of SERS has been achieved through the immobilization of sharp-edges bimetallic specific nanoparticles-gold/platinum nanourchins (Au@PtNPs), on the gold grating surface, through the 1,4-benzendithiol (BDT) or 4-sulfobenzenediazonium tosylate (ADT-SH). Gold grating, able to support the surface plasmon polariton (SPP) excitation and propagation, was created on the polymer substrate using the excimer laser modification with further metal deposition. Bimetallic nanoparticles, able to efficiently excite the localized surface plasmons (LSPs), were synthesized using the wet chemical approach. Immobilization of Au@PtNPs on the gold grating allows to achieve SPP-LSP coupling and significantly SERS enhancement, with the maintaining of signal reproducibility, provided by the periodical surface. More detailed experiments show that in the case of ADT-SH, the better Au@PtNPs grafting density and SERS enhancement factor were achieved. Moreover, the produced structure allows SERS measurements with a portable Raman spectrophotometer.
KW - Coupling
KW - Gold gratings
KW - Multibranched nanoparticles
KW - Plamonics
KW - SERS
UR - http://www.scopus.com/inward/record.url?scp=85062943362&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85062943362&partnerID=8YFLogxK
M3 - Conference contribution
T3 - NANOCON 2018 - Conference Proceedings, 10th Anniversary International Conference on Nanomaterials - Research and Application
SP - 426
EP - 431
BT - NANOCON 2018 - Conference Proceedings, 10th Anniversary International Conference on Nanomaterials - Research and Application
PB - TANGER Ltd.
ER -