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  • Title: Recognition of chiral propranolol by fluorescent aptamerlight switch based on GO.
    Author: Tan X, Zhang Y, Mao H, Yang J.
    Journal: Spectrochim Acta A Mol Biomol Spectrosc; 2024 Jan 15; 305():123436. PubMed ID: 37832446.
    Abstract:
    In this work, specific aptamers with affinity for S-propranolol were screened by SELEX technology based on the graphene oxide (GO) adsorption platform, and a GO-FAM labeled aptamer-propranolol fluorescent optical switch system was constructed for the recognition of chiral propranolol. It was found that the fluorescence quenching of FAM labeled aptamer could be caused by the adsorption of GO. However, when S-propranolol was introduced, S-propranolol could pull out the aptamer adsorbed by GO, and the fluorescence of the system could be restored. But, R-propranolol could not be realized. Therefore, a simple and sensitive fluorescent optical switch system was established to identify chiral propranolol and perform highly sensitive detection of S-propranolol.
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