期刊
DYES AND PIGMENTS
卷 173, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.dyepig.2019.107997
关键词
Solvent directed ratiometric hydrazine detection; DFT/TDDFT calculations; AFM study; Hydrazine detection in real water; Soil sample; Live cell imaging
资金
- DST-SERB, New Delhi, India [EMR/2016/006640]
- UGC-MANF, New Delhi, India [MANF-WES-67786]
Hydrazine being a hazardous environmental pollutant and highly toxic to living organism. Therefore selective, sensitive and rapid detection of hydrazine is much essential for biological and environmental safety. Among various methods for measurement of hydrazine, the fluorescence method based on organic fluorogenic chemosensor is more attractive due to the photo physical characteristics of the fluorophore including high sensitivity. Here, we have synthesized a donor-pi- acceptor (D-pi-A) based fluorescent molecule (TPB) for rapid and selective detection of hydrazine. Introduction of D-pi-A system enhances the ICT character of the probe there by delivered a typical solvatochromism. Accordingly, strong ICT character of the probe is consistent with intense photo physical characteristics to detect hydrazine in different solvent system. Interestingly, the probe showed different optical changes in polar protic and polar aprotic solvent to hydrazine detection. DFT/TDDFT calculation displayed the hypsochromic shift in absorbance and emission spectra were due to disruption of ICT process of the probe upon exposure to hydrazine. In this context, the probe is very much effective for quantitative detection of hydrazine in different real water and soil samples. Also, fluorescence microscopic study revealed that even a trace amount of hydrazine can be detected in living cells by using this probe.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据