A chiral signal-amplified sensor for enantioselective discrimination of amino acids based on charge transfer-induced SERS

An ultra-high sensitivity sensor with the function of chiral signal amplification has been proposed for the enantiomer discrimination of various amino acid enantiomers based on charge transfer (CT)-induced SERS spectroscopy. The introduced TiO 2 in this sensor improves the CT behavior and discrimina...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2019, Vol.55 (65), p.9697-97
Main Authors: Wang, Yue, Liu, Jing, Zhao, Xueqi, Yang, Chunguang, Ozaki, Yukihiro, Xu, Zhangrun, Zhao, Bing, Yu, Zhi
Format: Article
Language:English
Subjects:
Amino acids
Amplification
Charge transfer
Discrimination
Enantiomers
Raman spectroscopy
Sensors
Titanium dioxide
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Summary:An ultra-high sensitivity sensor with the function of chiral signal amplification has been proposed for the enantiomer discrimination of various amino acid enantiomers based on charge transfer (CT)-induced SERS spectroscopy. The introduced TiO 2 in this sensor improves the CT behavior and discrimination efficiency distinctly and enantiomeric discrimination is realized even at low concentration. An ultra-high sensitivity enantioselective sensor with excellent discrimination performance for trace amino acids by using charge transfer-induced SERS.
ISSN:1359-7345
1364-548X
DOI:10.1039/c9cc04665h