Abstract
Alkaline phosphatase (ALP) is an important biomarker in clinical diagnostics, and the abnormal level of ALP enzyme in serum is closely related to various diseases such as bone metastases, bone or liver cancer, and extrahepatic biliary obstruction. Recognizing the location and expression level of ALP in live cells has a substantial importance in early-stage cancer diagnosis, as well as an important parameter for studying the recovery of the patients after liver transplantation. With the advent of the newer and advanced fluorescence imaging techniques, small-molecule fluorescent probes have become a very powerful tool for mapping the subtle changes in the enzyme expression level in living cells and tissues in real-time. In this account, we provide an overview of recent advances in small-molecule ALP fluorescent probes, mainly during the last few years, including the design strategies and applications for biological applications.
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