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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Cao, Minhua Li, Xiaofei Zhou, Lin Fan, Li-Juan Zhang, Han Yao, Jian-Lin Cheng, Si |
| Description | Author Affiliation: Li X ( Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, PR China.) |
| Abstract | Surface-enhanced Raman scattering (SERS)-active substrates of polyvinyl alcohol/gold-silver (PVA/Au-Ag) nanofibers were prepared using a simple approach involving electrospinning. The tunable surface plasmon resonance (SPR) of gold-silver alloy (Au-Ag alloy) nanoparticles (NPs) was achieved by controlling the feed ratio between gold and silver precursors. A higher concentration of Au-Ag alloy NPs could be obtained than the conventional methods, using 1wt% of PVA as the stabilizer. The Au-Ag alloy structure was demonstrated by HRTEM and STEM-EDX. After the electrospinning, the Au-Ag alloy NPs were successfully embedded in PVA nanofibers, as shown in the SEM and TEM images. Raman spectra displayed an apparent enhancement in the signal of 4-mercaptobenzoic acid (4-MBA), pyridine, and thiophenol molecules pre-absorbed from their ethanol solution onto the PVA/Au-Ag nanofibers. Different SERS effects were achieved by varying the Au content or excitation wavelength. |
| ISSN | 00219797 |
| Issue Number | 1 |
| Journal | Journal of Colloid and Interface Science |
| Volume Number | 382 |
| e-ISSN | 10957103 |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2012-09-15 |
| Publisher Place | United States |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Colloid & Interface Science |
| Content Type | Text |
| Resource Type | Article |
| Subject | Surfaces, Coatings and Films Colloid and Surface Chemistry Biomaterials Electronic, Optical and Magnetic Materials |
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