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A water‐soluble fluorescent probe BPN, by introducing a piperazine as the pH‐sensitive fluorescence signaling motif to the hydrophilic propionic acid‐substituted 1,8‐naphthalimide fluorophore, is highly sensitive to pH changes within cytoplasm matrix in living cells, as well as pH‐related diseases models. Owing to the protonation‐induced inhibition of the photoinduced electron transfer (PET) from...
Fifty‐four Eucommia ulmoides leaves were subjected to a hydrothermal technique to synthesize carbon dots (CDs) of 3.55 ± 1.45 nm size. The nanomaterial possessed excellent stability and strong fluorescence emission (φf 42.3%). In a neutral buffer solution, the fluorescence signals of CDs solution were enhanced by aluminium ion without interference from other ions. Degree of enhancement correlated...