Herein, we report a highly stable and water-soluble gold nanoparticles assembly obtained by using a unique cyclic polysiloxane as the soluble support. The assembly is unprecedentedly stable in concentrated solutions of various electrolytes and thiol molecules, and exhibits noticeable catalytic activity for nitrophenol reduction, of which the rate is enhanced through the plasmonic resonance effect. It is also revealed that the light acceleration effect strongly depends on the interparticle distances. The assembly can be further engineered in terms of the inter-particle distances and chemical compositions for the utilization of the plasmonic effect in the future.

中文翻译：

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坚固的金纳米颗粒甜甜圈组件催化催化硝基苯酚的等离子加速还原

在本文中，我们报告了通过使用独特的环状聚硅氧烷作为可溶性载体获得的高度稳定的水溶性金纳米粒子组件。该组件在各种电解质和硫醇分子的浓溶液中具有前所未有的稳定性，并具有明显的催化硝基苯酚还原的催化活性，该速率通过等离子体共振效应得以提高。还揭示出光加速作用强烈地取决于粒子间的距离。可以根据粒子间的距离和化学成分进一步设计该组件，以便将来利用等离子体效应。