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Detecting the complex motion of self-propelled micromotors in microchannels by electrochemistry

机译:通过电化学检测微通道中自推进微电机的复杂运动

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摘要

Autonomous self-propelled nano/micromotors are new frontiers in micro-and nanotechnology, with a plethora of possible applications in environmental remediation and biomedicine. However, key challenges remain, one of which is the monitoring of motion in these self-propelled nano-and microdevices. Tracking of these miniaturized objects is typically done by optical microscopy. Such a manual methodology has several inherent challenges, ranging from demanding computational power for optical image analysis to following objects in opaque or non-transparent environments. Here we developed a monitoring system for an autonomous self-propelled micromotor in a microfluidic channel via the placement of electrodes in the pathways. The electrochemical detection methodology, based on the disturbances in the electrical double layer of an electrode surface in our devised instrumentation technique, allows for different modes of motion in micromotors in channel environments to be recognized. This ability to detect the motion of autonomous self-powered micromotors in opaque/nontransparent channels will find widespread applications in the future.
机译:自动自动开挖纳米/微量运动器是微型和纳米技术的新边界,具有在环境修复和生物医学中的血清可能的应用。然而,仍然存在关键挑战,其中一个是在这些自推进纳米和微生物中监测运动。跟踪这些小型化物体通常通过光学显微镜完成。这种手动方法具有多种固有的挑战,从要求光学图像分析到不透明或非透明环境中的对象来苛刻的计算能力。在这里,我们通过在路径中放置电极在微流体通道中开发了一种用于自主自行式微流动的监测系统。基于我们设计的仪器技术中的电极表面的电双层的干扰,电化学检测方法允许识别沟道环境中的微电机中的不同运动模式。这种检测不透明/非透明渠道中自动自动微动机的运动的能力将来会发现未来广泛的应用。

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  • 来源
    《RSC Advances》 |2016年第102期|共6页
  • 作者单位

    Nanyang Technol Univ Sch Phys &

    Math Sci Div Chem &

    Biol Chem Singapore 637371 Singapore;

    Nanyang Technol Univ Sch Phys &

    Math Sci Div Chem &

    Biol Chem Singapore 637371 Singapore;

    Univ Cambridge Dept Chem Engn &

    Biotechnol New Museums Site Pembroke St Cambridge CB2 3RA England;

    Univ Cambridge Dept Chem Engn &

    Biotechnol New Museums Site Pembroke St Cambridge CB2 3RA England;

    Nanyang Technol Univ Sch Phys &

    Math Sci Div Chem &

    Biol Chem Singapore 637371 Singapore;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
  • 关键词

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