4.7 Article

Switchable and selective detection of Zn2+ or Cd2+ in living cells based on 3'-O-substituted arrangement of benzoxazole-derived fluorescent probes

Journal

CHEMICAL COMMUNICATIONS
Volume 50, Issue 56, Pages 7514-7516

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c4cc02335h

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Funding

  1. National Natural Science Foundation of China [21206137]
  2. Scientific Research Foundation of Northwest AF University [Z111021103, Z111021107]
  3. Fundamental Research Funds for the Central Universities [2452013py014]

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Two benzoxazole-derived ESIPT fluorescent sensors E1 and E2 show highly selective detection of Zn2+ and Cd2+, respectively, in aqueous solution and living cells. The selectivity switching from Zn2+ to Cd2+ is attributed to the different binding mode which is dependent on the 3'-O-substituted arrangement.

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