Release Time:2019-03-09  Hits:

Indexed by: Journal Article

Date of Publication: 2009-04-02

Journal: ORGANIC LETTERS

Included Journals: ESI高被引论文、SCIE

Volume: 11

Issue: 7

Page Number: 1655-1658

ISSN: 1523-7060

Abstract: A fluorescent sensor, QA, based on acetamidoquinoline with DPA as receptor, was synthesized. In aqueous buffer solution, QA demonstrates high selectivity for sensing Cd(2+) with about 40-fold enhancement in fluorescence quantum yield and picomolar sensitivity (K(d) = 0.25 +/- 0.03 pM). Moreover, sensor OA can distinguish Cd(2+) from Zn(2+) via two different sensing mechanisms (PET for Cd(2+); ICT for Zn(2+)), and the discrimination is even possible by "naked eyes".