当前位置: X-MOL 学术Analyst › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
A novel colorimetric and far-red emission ratiometric fluorescent probe for the highly selective and ultrafast detection of hypochlorite in water and its application in bioimaging.
Analyst ( IF 3.6 ) Pub Date : 2019-11-21 , DOI: 10.1039/c9an02034a
Yuanyuan Zhang 1 , Yufan Ma , Zhuo Wang , Xueyan Zhang , Xin Chen , Shicong Hou , Hongmei Wang
Affiliation  

Hypochlorous acid (HOCl)/hypochlorite (OCl), an important reactive oxygen species, plays a number of important roles in various physiological processes. However, abnormal levels of OCl can cause many serious diseases, such as atherosclerosis, rheumatoid arthritis, cardiovascular disease, and cancer. The development of efficient methods to monitor OCl in biological systems is therefore of particular importance. Thus, we herein report a novel isophorone-based fluorescent probe, i.e., DCOH-FR-OCl, for OCl detection. This probe was found to exhibit colorimetric and far-red ratiometric fluorescence response signals, excellent selectivity and sensitivity for OCl (detection limit, 88.06 nM), a remarkably large Stokes shift (158 nm), an ultrafast response (completed within 3 s), perfect photostability, and good water solubility (100% in aqueous media). DCOH-FR-OCl, as we know, is the first probe that can detect OCl by using two different response signals at an ultrafast speed with a large Stokes shift in fully aqueous media. Furthermore, DCOH-FR-OCl can be successfully employed in the real-time imaging of endogenous and exogenous OCl in living cells.

中文翻译:

一种新型比色和远红外发射比率荧光探针,用于水中次氯酸盐的高选择性和超快速检测及其在生物成像中的应用。

次氯酸(HOCl)/次氯酸盐(OCL - ),一个重要的活性氧,起着数目的各种生理过程重要的作用。然而,OCL的异常水平-可能导致许多严重的疾病,如动脉粥样硬化,类风湿性关节炎,心血管疾病和癌症。的有效方法的发展监测OCL -在生物系统因此特别重要。因此,我们在此报告一种新颖的基于异佛尔酮-荧光探针,DCOH-FR-OCL,对OCL -检测。该探针被发现表现出比色和远红比率荧光响应信号,优异的选择性和灵敏度为OCL -(检测限为88.06 nM),非常大的斯托克斯位移(158 nm),超快响应(在3 s内完成),良好的光稳定性和良好的水溶性(在水性介质中为100%)。DCOH-FR-OCL,因为我们知道,是能够检测OCL第一探针-通过用在充分含水介质大的斯托克斯频移的超快速度使用两个不同的响应信号。此外,DCOH-FR-OCL可以成功地内源性和外源性OCL的实时成像使用-在活细胞。
更新日期:2019-11-21
down
wechat
bug