主客体相互作用和自组装方法构建水溶性的金纳米粒子网络

纳米材料具有与许多奇异的尺寸相关的物理化学性质，因而引起研究者广泛的关注．控制纳米材料的形貌，如纳米粒子、纳米棒和纳米线等是目前研究的热点．与这些纳米材料相比，纳米网络具有广泛应用前景．例如，这种纳米网络可以应用于高集成度的电子元件．同时纳米网络中的空腔可以用作承载酶和药物等，应用于酶催化反应和药物控制释放等领域．为了满足这些应用要求，

Water-soluble Gold Nanoscale Network Fabricated by Host-guest Interaction and Self-assembly Method

Water-soluble nanoscale network with a good stability was fabricated by cross-linking the gold nanoparticles with β-cyclodextrin and 1,8-octanedithiol inclusion complexes (ICs) through host-guest interaction and self-assembly method. Three-dimensional network with the scale of the porous range from 20 nm to 100 nm was measured by transmission electron microscopy (TEM). The fate of the ICs in the nanoscale network was examined by FT-IR. The stability of the ICs linked network was much better than that of 1,8-octanedithiol linked one, which was determined by the damping of the surface plasmon absorbance in UV-Vis spectra. This discovery is of great interest in the fields such as the nano-electronics and biological applications.