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Selective and Fast-Response Fluorescent Probes for Hypochlorite and their Application
Lei Shi,Qinhai Chen,Haojia Hong,Guang Shao,Shengzhao Gong,Hua Xiang 대한화학회 2019 Bulletin of the Korean Chemical Society Vol.40 No.7
It is extremely important to develop selective and sensitive fluorescent probes for the detection of hypochlorite (HClO/ClO?). Herein, two ESIPT-based fluorescent probes (BS1 and BS2) were designed and prepared for the fast determination of HClO. The probes exhibited excellent specificity towards HClO and showed the rapid and huge fluorescent responses. Moreover, the probes BS1 and BS2 could sensitively detect HClO in the range of 0?100??M with the low detection limits of 87 and 106?nM, especially. Besides, the success of practical application in water samples and test strips suggested that the synthetic probes may be effective tools for the detection of hypochlorite in environmental samples.
A Ratiometric Fluorescent Probe for Selective Detection of Hypochlorite Anion
Zhijian Ou,Lei Shi,Wenli Huang,Shengzhao Gong,Haomei Liang,Haojia Hong 대한화학회 2017 Bulletin of the Korean Chemical Society Vol.38 No.12
A new fluorescent probe based on rhodamine and naphthalimide was synthesized for the discrimination of hypochlorite anion. Upon addition of NaClO, the emission intensities ratio (I576 nm/I528 nm) of the probe 1 increased quickly accompanied with the obvious change of color. The probe 1 also exhibited highly selectivity and fast response to hypochlorite anion. Furthermore, the newly proposed probe has been applied for natural water samples, and a satisfied result was obtained.
Hao Jia,Wei Chen,Xiuhua Wu,Shuai Li,Hong Liu,Jiru Liao,Weihua Liu,Mantian Mi,Longjian Liu,Daomei Cheng,Xiaoping Yu 대한수의학회 2013 Journal of Veterinary Science Vol.14 No.3
The effects of black rice anthocyanidins (BRACs) on retinal damage induced by photochemical stress are not well known. In the present study, Sprague-Dawley rats were fed AIN-93M for 1 week, after which 80 rats were randomly divided into two groups and treated with (n = 40) or without BRACs (n =40) for 15 days, respectively. After treatment, both groups were exposed to fluorescent light (3,000 ± 200 lux; 25oC), and the protective effect of dietary BRACs were evaluated afterwards. Our results showed that dietary BRACs effectively prevented retinal photochemical damage and inhibited the retinal cells apoptosis induced by fluorescent light (p < 0.05). Moreover, dietary BRACs inhibited expression of AP-1 (c-fos/c-jun subunits), up-regulated NF-κB (p65) expression and phosphorylation of IκB-α, and decreased Caspase-1 expression (p < 0.05). These results suggest that BRACs improve retinal damage produced by photochemical stress in rats via AP-1/NF-κB/Caspase-1apoptotic mechanisms.