Rapid detection of aspartic acid and glutamic acid in water by BODIPY-Based fluorescent probe: Live-cell imaging and DFT studies
作者:Subhajit Guria、Avijit Ghosh、Kalipada Manna、Abhishek Pal、Arghya Adhikary、Susanta Adhikari
DOI:10.1016/j.dyepig.2019.04.052
日期:2019.9
Strategically modified4-(diethylamino)-2-(pyridin-2-ylmethoxy)benzaldehyde appended BODIPY-based probe N,N-SP-BPY detects aspartic acid (Asp) and glutamic acid (Glu) by inhibition of Photoinduced electron transfer (PET) process in water. The probe shows considerable and rapid fluorescence enhancement upon addition of Asp and Glu. Additionally, a distinct colorimetric change from pink to a colorless
经策略修饰的4-(二乙氨基)-2-(吡啶-2-基甲氧基)苯甲醛附加的基于BODIPY的探针N,N-SP-BPY通过抑制光致电子转移(PET)来检测天冬氨酸(Asp)和谷氨酸(Glu)在水中的过程。加入Asp和Glu后,该探针显示出明显且快速的荧光增强。此外,可以观察到从粉红色到无色溶液的明显比色变化,从而识别出Asp和Glu的痕迹。探针检测到的Asp和Glu分别低至1μM和5μM。此外,该探针可以在荧光显微镜下有效检测活HeLa,A549,MDA-MB-468和HEK-293T细胞中的细胞内Asp和Glu,而无任何细胞毒性作用。还合成了两个模型BODIPY衍生物以建立战略修改。1个1 H NMR滴定和理论计算有力地支持了实验结果。