A sonochemical approach for a silver particle layer SERS substrates preparation and subsequent application in qualitative analysis
We present an easy and efficient method for silver particle layer SERS substrate preparation that combines a modified Tollens’ approach with using ultrasound to obtain unique reaction conditions by generating high-energy hot-spots as the arising acoustic cavities implode. The silver layers were depo...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-10-01
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| Series: | Results in Surfaces and Interfaces |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S266684592300065X |
| _version_ | 1797398979823009792 |
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| author | Barbora Štefková Robert Prucek Tomáš Ingr Aleš Panáček Libor Kvítek |
| author_facet | Barbora Štefková Robert Prucek Tomáš Ingr Aleš Panáček Libor Kvítek |
| author_sort | Barbora Štefková |
| collection | DOAJ |
| description | We present an easy and efficient method for silver particle layer SERS substrate preparation that combines a modified Tollens’ approach with using ultrasound to obtain unique reaction conditions by generating high-energy hot-spots as the arising acoustic cavities implode. The silver layers were deposited on various substrates in a one-step reduction process of silver nitrate. Three different reductants (maltose, glucose, ascorbic acid) were used to obtain silver particle layers with different particle sizes, morphologies, and inter-particle distances. To further optimize the properties of the silver particles for SERS and to provide higher signal enhancement, all the prepared nanoparticle layers were activated in 4 M Cl− solution. The size of silver particles was in most samples under 100 nm and the particles formed clusters, but they were also present on the surface individually. In some of the activated substrates, bigger particles (0.5–1 μm) occur as well. The activated as well as non-activated substrates were tested as SERS substrates using 10−5 M adenine as a model analyte. Laser wavelengths of 455 nm, 532 nm, 633 nm, 780 nm, and 785 nm were used for the SERS measurements. High enhancement factors up to 3.5·105 and 2.8·105 were obtained for SERS measurements using lasers of 532 nm and 780 nm, respectively. |
| first_indexed | 2024-03-09T01:33:20Z |
| format | Article |
| id | doaj.art-8e7c181ded4d4b8683053c7e29db62e8 |
| institution | Directory Open Access Journal |
| issn | 2666-8459 |
| language | English |
| last_indexed | 2024-03-09T01:33:20Z |
| publishDate | 2023-10-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Surfaces and Interfaces |
| spelling | doaj.art-8e7c181ded4d4b8683053c7e29db62e82023-12-09T06:08:23ZengElsevierResults in Surfaces and Interfaces2666-84592023-10-0113100158A sonochemical approach for a silver particle layer SERS substrates preparation and subsequent application in qualitative analysisBarbora Štefková0Robert Prucek1Tomáš Ingr2Aleš Panáček3Libor Kvítek4Department of Physical Chemistry, Faculty of Science, Palacký University Olomouc, 17. Listopadu 12, 771 46, Olomouc, Czech RepublicCorresponding author.; Department of Physical Chemistry, Faculty of Science, Palacký University Olomouc, 17. Listopadu 12, 771 46, Olomouc, Czech RepublicDepartment of Physical Chemistry, Faculty of Science, Palacký University Olomouc, 17. Listopadu 12, 771 46, Olomouc, Czech RepublicDepartment of Physical Chemistry, Faculty of Science, Palacký University Olomouc, 17. Listopadu 12, 771 46, Olomouc, Czech RepublicDepartment of Physical Chemistry, Faculty of Science, Palacký University Olomouc, 17. Listopadu 12, 771 46, Olomouc, Czech RepublicWe present an easy and efficient method for silver particle layer SERS substrate preparation that combines a modified Tollens’ approach with using ultrasound to obtain unique reaction conditions by generating high-energy hot-spots as the arising acoustic cavities implode. The silver layers were deposited on various substrates in a one-step reduction process of silver nitrate. Three different reductants (maltose, glucose, ascorbic acid) were used to obtain silver particle layers with different particle sizes, morphologies, and inter-particle distances. To further optimize the properties of the silver particles for SERS and to provide higher signal enhancement, all the prepared nanoparticle layers were activated in 4 M Cl− solution. The size of silver particles was in most samples under 100 nm and the particles formed clusters, but they were also present on the surface individually. In some of the activated substrates, bigger particles (0.5–1 μm) occur as well. The activated as well as non-activated substrates were tested as SERS substrates using 10−5 M adenine as a model analyte. Laser wavelengths of 455 nm, 532 nm, 633 nm, 780 nm, and 785 nm were used for the SERS measurements. High enhancement factors up to 3.5·105 and 2.8·105 were obtained for SERS measurements using lasers of 532 nm and 780 nm, respectively.http://www.sciencedirect.com/science/article/pii/S266684592300065XSurface enhanced Raman spectroscopySilver particle layerSonochemical depositionAluminium oxide substrateCellulose substrate |
| spellingShingle | Barbora Štefková Robert Prucek Tomáš Ingr Aleš Panáček Libor Kvítek A sonochemical approach for a silver particle layer SERS substrates preparation and subsequent application in qualitative analysis Results in Surfaces and Interfaces Surface enhanced Raman spectroscopy Silver particle layer Sonochemical deposition Aluminium oxide substrate Cellulose substrate |
| title | A sonochemical approach for a silver particle layer SERS substrates preparation and subsequent application in qualitative analysis |
| title_full | A sonochemical approach for a silver particle layer SERS substrates preparation and subsequent application in qualitative analysis |
| title_fullStr | A sonochemical approach for a silver particle layer SERS substrates preparation and subsequent application in qualitative analysis |
| title_full_unstemmed | A sonochemical approach for a silver particle layer SERS substrates preparation and subsequent application in qualitative analysis |
| title_short | A sonochemical approach for a silver particle layer SERS substrates preparation and subsequent application in qualitative analysis |
| title_sort | sonochemical approach for a silver particle layer sers substrates preparation and subsequent application in qualitative analysis |
| topic | Surface enhanced Raman spectroscopy Silver particle layer Sonochemical deposition Aluminium oxide substrate Cellulose substrate |
| url | http://www.sciencedirect.com/science/article/pii/S266684592300065X |
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