“On–off–on” pyrene‐based fluorescent chemosensor for the selective recognition of Cu 2+  and S 2−  ions and its utilization in live cell imaging | Zendy

Rajasekaran Dhivya | Zendy; Venkatachalam Kavitha | Zendy; Periasamy Viswanathamurthi | Zendy

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“On–off–on” pyrene‐based fluorescent chemosensor for the selective recognition of Cu 2+ and S 2− ions and its utilization in live cell imaging

Author(s) -

Rajasekaran Dhivya,

Venkatachalam Kavitha,

Periasamy Viswanathamurthi

Publication year - 2020

Publication title -

applied organometallic chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.53

H-Index - 71

eISSN - 1099-0739

pISSN - 0268-2605

DOI - 10.1002/aoc.5342

Subject(s) - chemistry , pyrene , ion , fluorescence , hydrazide , live cell imaging , fluorescence lifetime imaging microscopy , analytical chemistry (journal) , photochemistry , cell , chromatography , organic chemistry , biochemistry , physics , quantum mechanics

A new “on–off–on” fluorescence chemosensor (DPD) was designed, synthesized, and characterized based on pyrene and benzothiozole hydrazide. The probe DPD shows high affinity towards Cu 2+ ions and the DPD‐Cu 2+ ensemble shows high sensitivity towards S 2− ions through the displacement method in the presence of other interfering ions. The detection limits of DPD for Cu 2+ and S 2− ions were found to be 0.73 and 0.87 nM, respectively. Furthermore, the receptor was effectively applied to recognize Cu 2+ and S 2− ions in real samples and live A549 cells through imaging studies.

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