Liyun Zhang, Jun Cheng Er, Wang Xu, Xian Qin, Animesh Samanta, Santanu
Jana, Chi-Lik Ken Lee, Young-Tae Chang, ?Orange alert?: A fluorescent
detector for bisphenol A in water environments, Analytica Chimica Acta,
Volume 815, 7 March 2014, Pages 51-56, ISSN 0003-2670,
http://dx.doi.org/10.1016/j.aca.2014.01.038.
(http://www.sciencedirect.com/science/article/pii/S0003267014001032)
Abstract: Due to the prevalent use of polycarbonate plastics and epoxy
resins in packaging materials and paints for ships, there has been a
widespread global contamination of environmental water sources with
bisphenol A (BPA). BPA, an endocrine disruptor, has been found to cause
tremendous health problems. Therefore, there is an urgent need for
detecting BPA in a convenient and sensitive manner to ensure water
safety. Herein, we develop a fluorescent turn-on BPA probe, named
Bisphenol Orange (BPO), which could conveniently detect BPA in a wide
variety of real water samples including sea water, drain water and
drinking water. BPO shows superior selectivity toward BPA and up to
70-fold increase in fluorescence emission at 580 nm when mixed with BPA
in water. Mechanistic studies suggest a plausible water-dependent
formation of hydrophobic BPA clusters which favorably trap and restrict
the rotation of BPO and recover its inherent fluorescence.
Keywords: Bisphenol A; Fluorescent sensor; Boron dipyrromethene; Water
environments