Neuron-Shaped Gold Nanocrystals and Two-Dimensional Dendritic Gold Nanowires Fabricated by Use of a Long-Chain Amidoamine Derivative

摘要

We report the synthesis of two-dimensional (2D)ndendritic Au nanowires (DNWs) with diameters of 100−200 nm in annaqueous solution of long-chain amidoamine derivative (C18AA),nwhich acted as both capping and reducing agent, and the preparationnof large 2D DNWs with diameters of 400−700 nm by seeded growthnof the original DNWs. The seeded growth method in the presence ofnC18AA enables the fabrication of novel neuron-shaped Aunnanostructures consisting of two DNWs dangling from both ends ofnan ultrathin Au nanowire.