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Reprogrammable Microarrays: Optical Control Technique Could Enable Microfluidic Devices Powered by Surface Tension

机译:可重编程的微阵列:光学控制技术可以使表面张力驱动的微流控设备

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Physicists at the Georgia Institute of Technology have demonstrated a new optical technique for controlling the flow of very small volumes of fluids over solid surfaces. The technique, which relies on changes in surface tension prompted by optically-generated thermal gradients, could provide the foundation for a new generation of dynamically reprogrammable microfluidic devices. A paper describing the technique is the cover story for the August 1 issue of the journal Physical Review Letters. The research has been supported by the National Science Foundation and the Research Corporation. Existing microfluidic devices, also known as "labs-on-a-chip," use tiny channels or pipes etched into silicon or other substrate material to manipulate very small volumes of fluid. Such "micropipe" devices are just beginning to appear on the market.
机译:乔治亚理工学院的物理学家展示了一种新的光学技术,可以控制非常少量的流体在固体表面上的流动。该技术依赖于由光学产生的热梯度引起的表面张力的变化,可以为新一代的动态可重新编程的微流体装置提供基础。一篇描述该技术的论文是《 Physical Review Letters》杂志8月1日的封面故事。该研究得到了美国国家科学基金会和研究公司的支持。现有的微流体装置,也称为“芯片实验室”,使用蚀刻到硅或其他衬底材料中的微小通道或管道来操纵非常少量的流体。这种“微管”设备才刚刚开始出现在市场上。

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