the financial supports from National Natural Science Foundation of China (Nos.81971678 and 81671756);the Innovation Fund for Postgraduate Students of Central South University (No.2019zzts1019)。
Intracellular pH is a key parameter related to various biological and pathological processes.In this study,a ratiometric pH fluorescent sensor ABTT was developed harnessing the amino-type excited-state intramolecular ...