期刊
SCIENTIFIC REPORTS
卷 8, 期 -, 页码 -出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/s41598-018-22269-x
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资金
- Ministry of Higher Education of Saudi Arabia under the King Abdullah Scholarship Program [IR10161]
- European Union's Horizon under Marie Sklodowska-Curie [644175]
- China Scholarship Council
- Science Foundation Ireland [12/IP/1556, 07/IN1/B931]
- Science Foundation Ireland (SFI) [12/IP/1556] Funding Source: Science Foundation Ireland (SFI)
UV irradiation of aligned diphenylalanine peptide nanotubes (FF-PNTs) decorated with plasmonic silver nanoparticles (Ag NPs) enables photo-induced surface-enhanced Raman spectroscopy. UV-induced charge transfer facilitates a chemical enhancement that provides up to a 10-fold increase in surface-enhanced Raman intensity and allows the detection of a wide range of small molecules and low Raman cross-section molecules at concentrations as low as 10(-13) M. The aligned FF-PNT/Ag NP template further prevents photodegradation of the molecules under investigation. Our results demonstrate that FF-PNTs can be used as an alternative material to semiconductors such as titanium dioxide for photoinduced surface-enhanced Raman spectroscopy applications.
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