Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7232318 | Biosensors and Bioelectronics | 2015 | 4 Pages |
Abstract
A new water-soluble carboxylic-functionalized chemosensor 1 was designed and synthesized. 1 exhibited the selective fluorescence enhancement toward aluminum ions with a 1:1 complexation stoichiometry in aqueous solution. The detection limit (24 nM) of 1 for Al3+ is about two order lower than the WHO guideline (7.41 μM) for the drinking water. 1 was successfully applied to living cells and real samples for detecting Al3+. Moreover, the sensing mechanism originated from the inhibited excited-state intramolecular proton transfer (ESIPT) process and the chelation-enhanced fluorescence (CHEF) effect, as supported by theoretical calculations.
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Jae Jun Lee, Gyeong Jin Park, Yong Sung Kim, Sun Young Lee, Hyun Ji Lee, Insup Noh, Cheal Kim,