A reversible DNA–silver nanoclusters-based molecular fluorescence switch and its use for logic gate operation†
Abstract
Molecule-like silver nanoclusters (AgNCs) with few to tens of atoms are highly sensitive to the sequence and structure of DNA stabilizers. In this paper, a novel pH-triggered reversible molecular fluorescence switch is developed by taking advantage of the DNA-dependent fluorescence pH response of AgNCs. The DNA–AgNCs fluorescence switch simultaneously addresses concerns of simple construction strategy, efficient design and organic-