Development of sers substrates based on nanoparticles obtained by pulsed laser ablation
SERS spectroscopy is an effective method for the determination of organic and biological compounds, which finds its place in many areas of human life: the analysis of works of art and food 24 YOUNG SCIENTISTS SESSION SESSION Y products, the identification of drugs and drugs, the study of biological...
| Published in: | Pulsed lasers and laser applications AMPL-2021 : the 15th International conference, September 12-17, 2021, Tomsk, Russia : abstracts P. 23-24 |
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| Main Author: | |
| Other Authors: | , |
| Format: | Book Chapter |
| Language: | English |
| Subjects: | |
| Online Access: | http://vital.lib.tsu.ru/vital/access/manager/Repository/koha:000890373 Перейти в каталог НБ ТГУ |
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| 100 | 1 | |a Volokitina, A. V. |9 798732 | |
| 245 | 1 | 0 | |a Development of sers substrates based on nanoparticles obtained by pulsed laser ablation |c A. V. Volokitina, I. N. Lapin, V. A. Svetlichnyi |
| 336 | |a Текст | ||
| 337 | |a электронный | ||
| 520 | 3 | |a SERS spectroscopy is an effective method for the determination of organic and biological compounds, which finds its place in many areas of human life: the analysis of works of art and food 24 YOUNG SCIENTISTS SESSION SESSION Y products, the identification of drugs and drugs, the study of biological structures, incl. at the cellular level. The creation of simple and effective SERS substrates is an urgent task in the development of this method. This paper presents the results of a study of SERS substrates based on gold nanoparticles (NPs). Gold NPs were obtained by pulsed laser ablation of an Au metal target in alcohol using a Nd:YAG laser (1064 nm, 7 ns, 150 mJ). The resulting colloidal solution was applied onto glass substrates by the drop method, varying the number of layers. The SERS characteristics were studied using a model dye rhodamine 6G using Renishaw inVia Basis Raman microscope. The samples were excited in the region of surface plasmon resonance of gold by laser radiation of 532 nm. The results of the study showed that with an increase in the number of deposited layers up to 5, the intensity of the Raman scattering of the dye increases linearly. With a further increase in the number of layers, the signal saturates. This data correlates with SEM data. At the beginning, an increase in the packing density of NPs in the plane of the substrate is observed. Accordingly, the number of "hot spots" increases, which contribute to the amplification of the signal. Further, the homogeneity of the NP layer deteriorates, and large bulk agglomerates appear. Thus, we have developed a simple method for obtaining SERS substrates, which made it possible to increase the signal intensity up to three orders of magnitude. | |
| 653 | |a импульсная лазерная абляция | ||
| 653 | |a SERS-подложки | ||
| 655 | 4 | |a статьи в сборниках |9 879352 | |
| 700 | 1 | |a Lapin, Ivan N. |9 100086 | |
| 700 | 1 | |a Svetlichnyi, Valerii A. |9 562988 | |
| 773 | 0 | |t Pulsed lasers and laser applications AMPL-2021 : the 15th International conference, September 12-17, 2021, Tomsk, Russia : abstracts |d Tomsk, 2021 |g P. 23-24 |z 9785936296703 | |
| 852 | 4 | |a RU-ToGU | |
| 856 | 4 | |u http://vital.lib.tsu.ru/vital/access/manager/Repository/koha:000890373 | |
| 856 | |y Перейти в каталог НБ ТГУ |u https://koha.lib.tsu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=890373 | ||
| 908 | |a статья | ||
| 039 | |z 77 | ||
| 999 | |c 890373 |d 890373 | ||