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孔磊等撰写的论文被Chem. Asian J.正式接收发表

发布时间:2019-04-09
     孔磊等撰写的论文“Smart Microdevices Laying “Breadcrumbs” to Find the Way Home: Chemotactic Homing TiO2/Pt Janus Microrobots”Wiley旗下期刊Chem. Asian J.正式接收发表2019, https://doi.org/10.1002/asia.201900004。在该论文中,我们和新加坡南洋理工大学Martin Pumera教授合作发现光驱TiO2/Pt双面神微米马达在紫外光光照下能够在纯水中快速运动;当停止光照后,该马达能够沿着之前的运动轨迹返回到初始位置。这是由于TiO2/Pt微米马达在光照下产生的离子产物沿着运动轨迹分布,从而改变了基板附近的表面电荷。当光照停止后,微米马达在基板附近电渗流的作用下自动回到初始位置,我们将其称之为“面包屑导航”。这种双面神微米马达的“递送与自动返回”模式有望实现微米马达的真正独立应用。

    原文详细摘要如下:Synthetic microrobots or micromotors are known to show “intelligent” behavior such as magnetotaxis, phototaxis, chemotaxis, active detection, and chemical communication. Herein, we present the concept of micromotors laying “breadcrumbs”; that is, these micromachines can move/return to a home position without external guidance after their external energy input is stopped. As a demonstration, TiO2/Pt Janus micromotors that move forward with UV light can return back following the previous path when the UV light is turned off. Such autonomy of motion opens the door for truly independent applications of micromotors in the “deliver-and-return” fashion.

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