水中光驱动自主微电机的游动行为
Schooling behavior of light-powered autonomous micromotors in water.
作者信息
Ibele Michael, Mallouk Thomas E, Sen Ayusman
机构信息
Department of Chemistry, The Pennsylvania State University, University Park, PA 16802, USA.
出版信息
Angew Chem Int Ed Engl. 2009;48(18):3308-12. doi: 10.1002/anie.200804704.
A new school of thought: Micrometer-sized silver chloride (AgCl) particles (red) in deionized water move under UV illumination by self-diffusiophoresis (see picture). Each AgCl particle secretes ions to which the other particles respond, and they are observed to "school" into regions with higher concentrations of particles. Photo-inactive silica particles (blue) also respond to the chemical secretion by swimming towards and surrounding individual AgCl particles.
一种新的思想流派
去离子水中的微米级氯化银（AgCl）颗粒（红色）在紫外线照射下通过自扩散电泳移动（见图）。每个AgCl颗粒都会分泌离子，其他颗粒会对这些离子做出反应，并且观察到它们会“聚集”到颗粒浓度较高的区域。光惰性二氧化硅颗粒（蓝色）也会通过向单个AgCl颗粒游动并围绕它们来对化学分泌物做出反应。
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