Real-time imaging of laser-induced nanowelding of silver nanoparticles in solution

It is of great interest to understand the nanowelding metallic nanoparticles induced by laser illumination due its potential for offering convenient and controlled means shape-conversion fabrication nanodevices. However, real-time kinetics process were rarely investigated in literature. In this work, we applied fluorescence microscopy directly image silver (AgNPs) shined with continuous wave at 405 nm, observed formation branched structures or assemblies nanowelding.