In-situ fabrication of gold nanoparticle functionalized probes for tip-enhanced Raman spectroscopy by dielectrophoresis
We report the use of dielectrophoresis to fabricate in-situ probes for tip-enhanced Raman spectroscopy (TERS) based on Au nanoparticles. A typical conductive atomic force microscope (AFM) was used to functionalize iridium-coated conductive silicon probes with Au nanoparticles of 10-nm diameter. Suit...
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| Format: | Article |
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Society of Photo-optical Instrumentation Engineers
2016
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| Online Access: | https://eprints.nottingham.ac.uk/36186/ |
| _version_ | 1848795238875791360 |
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| author | Sweetenham, Claire Sue Woolley, Richard Notingher, Ioan |
| author_facet | Sweetenham, Claire Sue Woolley, Richard Notingher, Ioan |
| author_sort | Sweetenham, Claire Sue |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | We report the use of dielectrophoresis to fabricate in-situ probes for tip-enhanced Raman spectroscopy (TERS) based on Au nanoparticles. A typical conductive atomic force microscope (AFM) was used to functionalize iridium-coated conductive silicon probes with Au nanoparticles of 10-nm diameter. Suitable TERS probes can be rapidly produced (30 to 120 s) by applying a voltage of 10 Vpp at a frequency of 1 MHz. The technique has the advantage that the Au-based probes are ready for immediate use for TERS measurements, minimizing the risks of tip contamination and damage during handling. Scanning electron microscopy and energy dispersive x-ray spectroscopy were used to confirm the quality of the probes, and used samples of p-ATP monolayers on silver substrates were used to demonstrate experimentally TERS measurements. |
| first_indexed | 2025-11-14T19:28:55Z |
| format | Article |
| id | nottingham-36186 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:28:55Z |
| publishDate | 2016 |
| publisher | Society of Photo-optical Instrumentation Engineers |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-361862020-05-04T18:06:37Z https://eprints.nottingham.ac.uk/36186/ In-situ fabrication of gold nanoparticle functionalized probes for tip-enhanced Raman spectroscopy by dielectrophoresis Sweetenham, Claire Sue Woolley, Richard Notingher, Ioan We report the use of dielectrophoresis to fabricate in-situ probes for tip-enhanced Raman spectroscopy (TERS) based on Au nanoparticles. A typical conductive atomic force microscope (AFM) was used to functionalize iridium-coated conductive silicon probes with Au nanoparticles of 10-nm diameter. Suitable TERS probes can be rapidly produced (30 to 120 s) by applying a voltage of 10 Vpp at a frequency of 1 MHz. The technique has the advantage that the Au-based probes are ready for immediate use for TERS measurements, minimizing the risks of tip contamination and damage during handling. Scanning electron microscopy and energy dispersive x-ray spectroscopy were used to confirm the quality of the probes, and used samples of p-ATP monolayers on silver substrates were used to demonstrate experimentally TERS measurements. Society of Photo-optical Instrumentation Engineers 2016-08-18 Article PeerReviewed Sweetenham, Claire Sue, Woolley, Richard and Notingher, Ioan (2016) In-situ fabrication of gold nanoparticle functionalized probes for tip-enhanced Raman spectroscopy by dielectrophoresis. Journal of Nanophotonics, 10 (3). 030502. ISSN 1934-2608 tip-enhanced Raman spectroscopy; dielectrophoresis; gold nanoparticles http://nanophotonics.spiedigitallibrary.org/article.aspx?articleid=2546056 10.1117/1.JNP.10.030502 10.1117/1.JNP.10.030502 10.1117/1.JNP.10.030502 |
| spellingShingle | tip-enhanced Raman spectroscopy; dielectrophoresis; gold nanoparticles Sweetenham, Claire Sue Woolley, Richard Notingher, Ioan In-situ fabrication of gold nanoparticle functionalized probes for tip-enhanced Raman spectroscopy by dielectrophoresis |
| title | In-situ fabrication of gold nanoparticle functionalized probes for tip-enhanced Raman spectroscopy by dielectrophoresis |
| title_full | In-situ fabrication of gold nanoparticle functionalized probes for tip-enhanced Raman spectroscopy by dielectrophoresis |
| title_fullStr | In-situ fabrication of gold nanoparticle functionalized probes for tip-enhanced Raman spectroscopy by dielectrophoresis |
| title_full_unstemmed | In-situ fabrication of gold nanoparticle functionalized probes for tip-enhanced Raman spectroscopy by dielectrophoresis |
| title_short | In-situ fabrication of gold nanoparticle functionalized probes for tip-enhanced Raman spectroscopy by dielectrophoresis |
| title_sort | in-situ fabrication of gold nanoparticle functionalized probes for tip-enhanced raman spectroscopy by dielectrophoresis |
| topic | tip-enhanced Raman spectroscopy; dielectrophoresis; gold nanoparticles |
| url | https://eprints.nottingham.ac.uk/36186/ https://eprints.nottingham.ac.uk/36186/ https://eprints.nottingham.ac.uk/36186/ |