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A heated needle micromanipulator with hybrid control for heat-caused denaturation in proteins

机译:具有杂交控制的加热针微小,用于蛋白质中的热导致变性

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The paper proposes a micromanipulator with the heated needle as an end effector in order to transfer heat around a micro area of a sample, egg whites. The proposed micromanipulator is controlled by a combination of an explicit model predictive control and PID controller, so-called the hybrid control, to accomplish tracking performances of several reference paths or shapes of heating the specific area. A tungsten needle wrapped with nichrome wire is used as a heat source mechanism and is connected to the two dimensional micromanipulator. The experimental results reveal that the heated needle can provide high temperature up to 50°C with 10μm needle tip diameter. In addition, the results indicate the effective operations for a point heating and denaturing egg whites in micro scale. Moreover, the heated needle is able to heat along the desired paths (a circle, ellipse, square or triangle) with the error less than 2μm from the center of measurement.
机译:本文提出了一种具有加热针作为末端执行器的微操纵器,以便在样品的微区域围绕样品,蛋清传递热量。所提出的微操纵器由显式模型预测控制和PID控制器,所谓的混合控制器的组合来控制,以完成若干参考路径或加热特定区域的形状的跟踪性能。用Nichrome线包裹的钨针用作热源机构,并连接到二维微操纵器。实验结果表明,加热针可以提供高达50℃的高温,具有10μm针尖直径。此外,结果表明微尺度中的点加热和变性蛋清的有效操作。此外,加热针能够沿着所需的路径(圆形,椭圆形,正方形或三角形)加热,误差从测量中心小于2μm。

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