4.7 Article

Room-temperature phosphorescent γ-cyclodextrin-cucurbit[6]uril-cowheeled [4]rotaxanes for specific sensing of tryptophan Electronic supplementary information (ESI) available. See DOI: 10.1039/c9cc00097f

Journal

CHEMICAL COMMUNICATIONS
Volume 55, Issue 21, Pages 3156-3159

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c9cc00097f

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Funding

  1. National Natural Science Foundation of China [21871194, 21572142, 21402129, 21402110]
  2. National Key Research and Development Program of China [2017YFA0505903]
  3. Science & Technology Department of Sichuan Province [2017SZ0021]
  4. Comprehensive Training Platform of Specialized Laboratory, College of Chemistry, Sichuan University

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Room temperature phosphorescent (RTP) gamma-CD-CB[6]-cowheeled [4] rotaxanes were synthesized by implanting a naphthalene axle into the cavity of iodine-substituted c-CDs. The strong green RTP was quenched exclusively by Trp while no RTP quenching was observed with other major physiological amino acids or with the Trp-containing protein HSA, demonstrating a highly specific sensing of free Trp.

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