期刊
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
卷 283, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.saa.2022.121719
关键词
Molecular imprinting; Photonic crystal; Colorimetric sensor; Pyroglutamate
类别
资金
- Science and Technology Project of Guangdong Province [20180307024]
- National College Students Innovation and Entrepreneurship Training Program [202110576004]
- Special Fund for Science and Technology Innovation Strategy of Guangdong Province [pdjh2022b0475]
A new type of photonic crystal gel molecularly imprinted sensor (MIPHs) was synthesized for the visible chiral recognition of amino acids. The MIPHs showed good performance in terms of selectivity and response time, making it suitable for highly selective identification of L-pyroglutamic acid.
A new type of photonic crystal gel molecularly imprinted sensor (MIPHs) was synthesized for the visible chiral recognition of amino acids. The color of MIPHs was changed from green to red when it exposured to various L- pyroglutamic acid concentration (0.05-1.0mmoL/L). Thanks to sensitive reflectance of photonic crystal and high selectivity of MIPs, the constructed MIPHs exhibited good performance towards L-pyroglutamic acid in terms of fast response time (3 min) and low detection limit (LOD) (2.4 mu mol/L). Besides, MIPHs was found to have good selectivity toward L-pyroglutamic acid in the presence of interference group with similar structures such as D- pyroglutamic acid, L-tryptophan, L-phenylalanine, and L-proline. In light of these findings, the MIPHs can be used for highly selective recognition of L-pyroglutamic acid. It is expected that our work is able to provide a new roadmap for the chiral identification and separation of amino acids.
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