Fluorescence lifetime-based biosensing of zinc: Origin of the broad dynamic range.

本文报道一种基于荧光寿命的锌离子生物传感器，用于在含干扰离子的溶液（如海水）中定量痕量锌。传感体系由脱锌人碳酸酐酶II（apo-carbonic anhydrase II, apo-CA II）和荧光抑制剂丹磺酰胺（dansylamide, DNSA）组成。Zn2+ 先与 apo-CA II 活性位高亲和力结合，随后诱导 DNSA ...