“…It is essential to measure the level of alkaline phosphatase to indicate some potential diseases, such as cancer, related to alkaline phosphatase. Wang et al [6] designed a simple and fast method to detect alkaline phosphatase quantitively. When alkaline phosphatase is present, the resulting poly T-DNA with a 3 -hydroxyl end was cleaved by exonuclease I, prohibiting the formation of fluorescent copper nanoparticles.…”