| Title |
Gold-sputtered Blu-ray discs: simple and inexpensive SERS substrates for sensitive detection of melamine
|
|---|---|
| Published in |
Analytical & Bioanalytical Chemistry, April 2016
|
| DOI | 10.1007/s00216-016-9545-5 |
| Pubmed ID | |
| Authors |
Michél K. Nieuwoudt, Jacob W. Martin, Reece N. Oosterbeek, Nina I. Novikova, Xindi Wang, Jenny Malmström, David E. Williams, M. Cather Simpson |
| Abstract |
Nanostructured gold substrates provide chemically stable, signal-enhancing substrates for the sensitive detection of a variety of compounds through surface-enhanced Raman spectroscopy (SERS). Recent developments in advanced fabrication methods have enabled the manufacture of SERS substrates with repeatable surface nanostructures that provide reproducible quantitative analysis, historically a weakness of the SERS technique. Here, we describe the novel use of gold-sputtered Blu-ray disc surfaces as SERS substrates. The unique surface features and composition of the Blu-ray disc recording surface lead to the formation of gold nano-islands and nanogaps following simple gold sputtering, without any background peaks from the substrate. The SERS performance of this substrate is strong and reproducible with an enhancement factor (EF) of 10(3) for melamine. A limit of detection (LOD) for this compound of 70 ppb and average reproducibility of ±12 % were achieved. Gold-sputtered Blu-ray discs thus offer an excellent alternative to more exotic gold SERS substrates prepared by advanced, time-consuming and expensive methods. Graphical abstract AFM 3D images of 1-μm(2) sections of uncoated and gold-sputtered recordable Blu-ray disc (BD-R) surfaces and the SERS signal obtained on the gold-sputtered surface for a 1000 ppm aqueous solution of melamine. |
X Demographics
The data shown below were collected from the profile of 1 X user who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 1 | 100% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Scientists | 1 | 100% |
Mendeley readers
The data shown below were compiled from readership statistics for 35 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 35 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Ph. D. Student | 8 | 23% |
| Researcher | 5 | 14% |
| Student > Master | 3 | 9% |
| Professor > Associate Professor | 2 | 6% |
| Student > Bachelor | 2 | 6% |
| Other | 3 | 9% |
| Unknown | 12 | 34% |
| Readers by discipline | Count | As % |
|---|---|---|
| Chemistry | 7 | 20% |
| Engineering | 3 | 9% |
| Physics and Astronomy | 3 | 9% |
| Materials Science | 2 | 6% |
| Biochemistry, Genetics and Molecular Biology | 1 | 3% |
| Other | 3 | 9% |
| Unknown | 16 | 46% |
Attention Score in Context
This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 25 May 2016.
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#22,778,604
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Outputs from Analytical & Bioanalytical Chemistry
#7,552
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Outputs of similar age
#256,605
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Outputs of similar age from Analytical & Bioanalytical Chemistry
#85
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