Maye Mathew M, Luo Jin, Lim I-Im S, Han Li, Kariuki Nancy N, Rabinovich Daniel, Liu Tianbo, Zhong Chuan-Jian
Department of Chemistry, State University of New York at Binghamton, Binghamton, NY 13902, USA.
J Am Chem Soc. 2003 Aug 20;125(33):9906-7. doi: 10.1021/ja0363866.
The ability to control the size and shape of nanoparticle assemblies is essential for the ultimate applications in sensors, catalysis, medical diagnostics, information storage, and quantum computation. This report demonstrates a novel mediator-template strategy toward this ability by exploring molecular driving forces exerted by a tridentate thioether as a mediator and tetraoctylammonium bromide as a templating agent. A combination of the ligand mediation, the surfactant templating, and their relative concentrations served as the driving forces. This combination leads to unprecedented spherical assemblies of gold nanoparticles in controllable sizes via manipulation of the relative concentrations of mediating and templating components.
控制纳米颗粒组装体的尺寸和形状的能力对于其在传感器、催化、医学诊断、信息存储和量子计算等最终应用中至关重要。本报告通过探索由三齿硫醚作为媒介物和溴化四辛铵作为模板剂所施加的分子驱动力，展示了一种实现这种能力的新型媒介物 - 模板策略。配体介导、表面活性剂模板作用及其相对浓度的组合充当了驱动力。通过操纵媒介和模板组分的相对浓度，这种组合导致了前所未有的尺寸可控的金纳米颗粒球形组装体。
