摘要
该文利用硫醇诱导的2,4-二硝基苯磺酰基基团的断裂反应生成具有供-吸电能力的荧光团,成功设计合成一种基于萘酰亚胺识别硫醇的荧光探针。相对于其他氨基酸,该探针在生理p H(7.40)值下,对于含硫醇的氨基酸具有高度的选择性和灵敏度。探针对硫醇具有显著的荧光增强响应,其荧光强度可以恢复197倍。此外,细胞内硫醇的荧光成像实验,证明该荧光探针具有潜在检测细胞内生物硫醇的能力。
The research used, 2,4-dinitrobenzenesulfonyl group cleavage reaction induced by thiols to generate fluorophore with power supply-sucking ability, and proposed and synthesized a kind of fluorescence probe that can identify biothiols via naphthalimides. Relative to other amino acids, the probe is under physiological pH value (7.40), which has high sensitivity and selectivity on amino acids containing biothiols. The probe has a striking fluorescence enhancement effect on biothiols, which can recover fluorescence intensity to 197 times. Besides, fluorescence imaging test of biothiols in cells shows that the fluorescence probe has a potential ability of detecting biothiols in cells.
出处
《中国测试》
CAS
北大核心
2016年第8期64-67,共4页
China Measurement & Test
基金
齐齐哈尔市科学技术计划项目(SFGG-201416)
关键词
生物硫醇
合成
萘酰亚胺
氨基酸
断裂反应
荧光探针
biothiols
synthesis
naphthalimide
amino acids
cleavage reaction
fluorescence probe