Anion directing self-assembly of 2D and 3D water-stable silver(i) cation metal organic frameworks and their applications in real-time discriminating cysteine and DNA detection†
Abstract
Two water-stable silver(I) cation metal organic frameworks (MOFs), namely 2D MOF {[Ag(L)2]BF4}n (1) and 3D MOF {[Ag3(L)3]·(H2O)·(CF3SO3)3}n (2) (L = 1-(4-aminobenzyl)-1,2,4-triazole), have been prepared. 1 is the first example of a 2D MOF-based sensor for real-time discrimination of L- and D-cysteine from other amino acids through the quenching effect. Through deliberately tuning the nanoparticles of 2 under ultrasound conditions, these nanoparticles are, for the first time, successfully applied as an excellent DNA detecting platform.