Characterization and optimization of AuNPs labeled by Raman reporters on glass based on silver enhancement

Wang, Yuling, Ren, Wen, Dong, Shaojun and Wang, Erkang (2009) Characterization and optimization of AuNPs labeled by Raman reporters on glass based on silver enhancement. Journal of Raman Spectroscopy, 40 5: 571-576. doi:10.1002/jrs.2170


Author Wang, Yuling
Ren, Wen
Dong, Shaojun
Wang, Erkang
Title Characterization and optimization of AuNPs labeled by Raman reporters on glass based on silver enhancement
Journal name Journal of Raman Spectroscopy   Check publisher's open access policy
ISSN 0377-0486
1097-4555
Publication date 2009-01-01
Year available 2009
Sub-type Article (original research)
DOI 10.1002/jrs.2170
Volume 40
Issue 5
Start page 571
End page 576
Total pages 6
Place of publication Chichester, West Sussex, United Kingdom
Publisher John Wiley and Sons Ltd.
Language eng
Subject 1607 Social Work
2500 Materials Science
Abstract In this report, gold nanoparticles (AuNPs) labeled by Raman reporters (AuNPs-R6G) were assembled on glass and used as the seeds to in situ grow silver-coated nanostructures based on silver enhancer solution, forming the nanostructures of AuNPs-R6G@Ag, which were characterized by scanning electron microscopy (SEM) and UV-visible spectroscopy. More importantly, the obtained silver-coated nanostructures can be used as a surface enhancement Raman scattering (SERS) substrate. The different SERS activities can be controlled by the silver deposition time and assembly time of AuNPs-R6G on glass. The results indicate that the maximum SERS activity could be obtained on AuNPs-R6G when these nanostructures were assembled on glass for 2 h with silver deposition for 2 min. In addition, the reproducibility of SERS signal on the fabricated nanostructures is very high with the intensity error lower than 15%, which has great promise as a probe for application in bioanalysis. Copyright
Keyword Gold nanoparticles
Raman reporter
Rhodamine 6G
Silver enhancement
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: Australian Institute for Bioengineering and Nanotechnology Publications
 
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