The Aggregation of Destabilized Ag Triangular Nanoplates and Its Application in Detection of Thiram Residues.

ABSTRACT: An aggregation or assembly of Ag triangular nanoplates (Ag TNPs) can cause dramatic changes in their optical properties, which is widely used in applications in the field of sensing. The assembly forms of nanoparticles are crucial for obtaining sensitive sensing signals, but it is unknown what kind of assembly dominates the aggregated Ag TNPs in aqueous solutions. Herein, using thiram-induced Ag TNP aggregation as a model, six different assembly models were established, including three planar (side-by-side, side-to-tip, and tip-to-tip) assemblies and three tridimensional (plane-to-plane, plane-to-tip, and plane-to-side) assemblies. The corresponding optical properties were then investigated. Both theoretical and experimental findings indicate that three-dimensional assemblies, especially p

SUBMITTER: Zhang C 

PROVIDER: S-EPMC9268207 | biostudies-literature | 2022 Jun

REPOSITORIES: biostudies-literature