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Improving the reproducibility of surface enhanced Raman spectroscopy (SERS).

Tantra, R; Brown, R J C; Milton, M J T; Wang, J (2006) Improving the reproducibility of surface enhanced Raman spectroscopy (SERS). VAM Bulletin, 35. pp. 27-30.

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Abstract

The SERS effect has been studied repeatedly since its discovery over 30 years ago; however an exact description and full understanding of the fundamental processes underpinning the effect remains elusive. The origin of very large Raman enhancements, which afford SERS its extremely high sensitivity, requires a complete description so that reproducibility can be addressed satisfactorily. This remains a topic of robust discussion. The work carried out in the current VAM programme has improved the understanding of the mechanism of SERS using metallic nanoparticle substrates and the underpinning physicochemical parameters that define its performance. The work has provided improved protocols for SERS analysis, in particular the aggregation step prior to data acquisition. It is this combination of better understanding the operation of SERS, as well as improving the SERS protocols that need to continue to be advanced if the technique is to be employed as a routine quantitative tool for ultra-trace analysis.

Item Type: Article
Subjects: Nanoscience
Nanoscience > Surface and Nanoanalysis
Last Modified: 02 Feb 2018 13:16
URI: http://eprintspublications.npl.co.uk/id/eprint/3665

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