Towards enhanced optical sensor performance: SEIRA and SERS with plasmonic nanostars
We report the preparation and characterization of plasmonic chip-based systems comprising self-assembled gold nanostars at silicon substrates that enable concomitantly enhanced Raman (surface enhanced Raman spectroscopy; SERS) and mid-infrared (surface enhanced infrared reflection or absorption spec...
| Published in: | Analyst Vol. 142, № 6. P. 951-958 |
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| Other Authors: | , , , , , , |
| Format: | Article |
| Language: | English |
| Subjects: | |
| Online Access: | http://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000616157 Перейти в каталог НБ ТГУ |
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| 024 | 7 | |a 10.1039/c6an02596j |2 doi | |
| 035 | |a to000616157 | ||
| 039 | 9 | |a 201711080922 |c 201710311542 |d VLOAD |y 201710311522 |z Александр Эльверович Гилязов | |
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| 245 | 1 | 0 | |a Towards enhanced optical sensor performance: SEIRA and SERS with plasmonic nanostars |c O. Bibikova, J. Haas, A. I. López-Lorente [et.al.] |
| 504 | |a Библиогр.: 55 назв. | ||
| 520 | 3 | |a We report the preparation and characterization of plasmonic chip-based systems comprising self-assembled gold nanostars at silicon substrates that enable concomitantly enhanced Raman (surface enhanced Raman spectroscopy; SERS) and mid-infrared (surface enhanced infrared reflection or absorption spectroscopy; SEIRA) spectral signatures. The high-aspect-ratio structure of gold nanostars provides an increased number of hot spots at their surface, which results in an electric field enhancement around the nanomaterial. Gold nanostars were immobilized at a silicon substrate via a thin gold layer, and α-ω-dimercapto polyethylene glycol (SH-PEG-SH) linkers. The Raman and IR spectra of crystal violet (CV) revealed a noticeable enhancement of the analyte vibrational signal intensity in SERS and SEIRA studies resulting from the presence of the nanostars. Enhancement factors of 2.5 × 103 and 2.3 × 103 were calculated in SERS considering the CV bands at 1374.9 cm-1 and 1181 cm-1, respectively; for SEIRA, an enhancement factor of 5.36 was achieved considering the CV band at 1585 cm-1. | |
| 653 | |a оптические датчики | ||
| 653 | |a поверхностно-усиленная рамановская спектроскопия | ||
| 653 | |a инфракрасная спектроскопия | ||
| 655 | 4 | |a статьи в журналах |9 879358 | |
| 700 | 1 | |a Bibikova, Olga |9 478695 | |
| 700 | 1 | |a López-Lorente, A. I. |9 478696 | |
| 700 | 1 | |a Popov, Alexey P |9 113424 | |
| 700 | 1 | |a Kinnunen, M. |9 478697 | |
| 700 | 1 | |a Meglinski, Igor V. |9 111386 | |
| 700 | 1 | |a Mizaikoff, B. |9 478698 | |
| 700 | 1 | |a Haas, J. |9 478699 | |
| 773 | 0 | |t Analyst |d 2017 |g Vol. 142, № 6. P. 951-958 |x 0003-2654 | |
| 852 | 4 | |a RU-ToGU | |
| 856 | 7 | |u http://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000616157 | |
| 856 | |y Перейти в каталог НБ ТГУ |u https://koha.lib.tsu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=428529 | ||
| 908 | |a статья | ||
| 999 | |c 428529 |d 428529 | ||