Volume 63, Issue 24 e202406233
Research Article

Enantiopure Corral[4]BINOLs as Ultrastrong Receptors for Recognition and Differential Sensing of Steroids

Rong Fu

Rong Fu

College of Chemistry, Nankai University, 94 Weijin Road, Tianjin, 300071 China

These authors contributed equally: Rong Fu, Dai-Yuan Li

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Dai-Yuan Li

Dai-Yuan Li

College of Chemistry, Key Laboratory of Functional Polymer Materials (Ministry of Education), State Key Laboratory of Elemento-Organic Chemistry, Frontiers Science Center for New Organic Matter, Collaborative Innovation Center of Chemical Science and Engineering, Nankai University, Tianjin, 300071 China

These authors contributed equally: Rong Fu, Dai-Yuan Li

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Jia-Hong Tian

Jia-Hong Tian

College of Chemistry, Key Laboratory of Functional Polymer Materials (Ministry of Education), State Key Laboratory of Elemento-Organic Chemistry, Frontiers Science Center for New Organic Matter, Collaborative Innovation Center of Chemical Science and Engineering, Nankai University, Tianjin, 300071 China

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Yi-Lin Lin

Yi-Lin Lin

College of Chemistry, Key Laboratory of Functional Polymer Materials (Ministry of Education), State Key Laboratory of Elemento-Organic Chemistry, Frontiers Science Center for New Organic Matter, Collaborative Innovation Center of Chemical Science and Engineering, Nankai University, Tianjin, 300071 China

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Qing-Yu Zhao

Qing-Yu Zhao

College of Chemistry, Nankai University, 94 Weijin Road, Tianjin, 300071 China

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Wen-Li Li

Wen-Li Li

College of Chemistry, Nankai University, 94 Weijin Road, Tianjin, 300071 China

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Fang-Yuan Chen

Fang-Yuan Chen

College of Chemistry, Key Laboratory of Functional Polymer Materials (Ministry of Education), State Key Laboratory of Elemento-Organic Chemistry, Frontiers Science Center for New Organic Matter, Collaborative Innovation Center of Chemical Science and Engineering, Nankai University, Tianjin, 300071 China

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Prof. Dr. Dong-Sheng Guo

Prof. Dr. Dong-Sheng Guo

College of Chemistry, Key Laboratory of Functional Polymer Materials (Ministry of Education), State Key Laboratory of Elemento-Organic Chemistry, Frontiers Science Center for New Organic Matter, Collaborative Innovation Center of Chemical Science and Engineering, Nankai University, Tianjin, 300071 China

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Prof. Dr. Kang Cai

Corresponding Author

Prof. Dr. Kang Cai

College of Chemistry, Nankai University, 94 Weijin Road, Tianjin, 300071 China

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First published: 09 April 2024
Citations: 16

Graphical Abstract

A pair of enantiomeric macrocycles, RRRR- and SSSS-C[4]BINOL, demonstrated exceptionally high recognition affinities (up to 1012 M−1) towards 16 important steroidal compounds in aqueous solutions, establishing them the most effective known steroid receptors. The two C[4]BINOL enantiomers were employed to compose a fluorescent sensor array which achieved discrimination and sensing of 16 structurally similar steroids in biofluids.

Abstract

The precise recognition and sensing of steroids, a type of vital biomolecules, hold immense practical value across various domains. In this study, we introduced corral[4]BINOLs (C[4]BINOLs), a pair of enantiomeric conjugated deep-cavity hosts, as novel synthetic receptors for binding steroids. Due to the strong hydrophobic effect of their deep nonpolar, chiral cavities, the two enantiomers of C[4]BINOLs demonstrated exceptionally high recognition affinities (up to 1012 M−1) for 16 important steroidal compounds as well as good enantioselectiviy (up to 15.5) in aqueous solutions, establishing them as the most potent known steroid receptors. Harnessing their ultrahigh affinity, remarkable enantioselectivity, and fluorescence emission properties, the two C[4]BINOL enantiomers were employed to compose a fluorescent sensor array which achieved discrimination and sensing of 16 structurally similar steroids at low concentrations.

Conflict of interests

The authors declare no conflict of interest.

Data Availability Statement

The data that support the findings of this study are available from the corresponding author upon reasonable request.

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