Light‐Responsive Dynamic DNA‐Origami‐Based Plasmonic Assemblies

DNA nanotechnology offers a versatile toolbox for precise spatial and temporal manipulation of matter on the nanoscale. However, rendering DNA-based systems responsive to light has remained challenging. Herein, we describe remote native (non-photoresponsive) chiral plasmonic molecules (CPMs) using light. Our strategy is based use photoresponsive medium comprising merocyanine-based photoacid. Upon exposure visible light, decreases its pH, inducing formation triplex links, leading reconfiguration CPMs. The process can be reversed simply by turning off it repeated multiple cycles. degree overall chirality change in an ensemble CPMs depends CPM fraction undergoing reconfiguration, which, remarkably, tuned intensity incident Such dynamic, remotely controlled system could aid further advancing devices nanomaterials.