least-cytotoxic as well as an efficient fluorescent sensor HqEN480 was prepared from (quinolin-8-yloxy)-acetic acid ethyl ester (L1) and N,N-dimethylethylene diamine to recognize NO in 100% aqueous solution. Its marked selectivity and sensitivity towards NO, makes it a highly suitable probe for nitric oxide under in vitro conditions with the possibility of in vivo monitoring of NO. Upon addition of 3.5 equivalents
本文中,由(quinolin-8-yloxy)-
乙酸乙酯(L 1)和N,N-二甲基亚乙基二胺制备了一种简单的,对细胞毒性最小且有效的荧光传感器HqEN 480,以识别100%
水溶液中的NO。解决方案。其对NO的显着选择性和敏感性使其成为体外条件下
一氧化氮的高度合适的探针,并有可能在体内监测NO。加入3.5当量的NO后,
水溶液中的荧光强度增强了大约7倍,相应的K f值为(1.75±0.07)×10 4 M-1。以酸性
奎宁硫酸盐为标准,确定HqEN 480和[HqEN 480 -NO]化合物的量子产率分别为0.04和0.22。根据3σ方法,发现
一氧化氮的LOD为53 nM,因此使该探针适用于跟踪
生物系统中的NO。