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Adhesion Force Measurement with a Flexible Film-type Sensor

机译：柔性薄膜型传感器的附着力测量

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Understanding cell-to-cell and cell-to-substrate adhesion forces is useful for the reproducible cultivation and detection of defective cells. In this study, the relationship between tensile pressure and the signal from a bonded-layer sensor was determined. We have developed a thin and flexible sensor film for measurement of force between contact interfaces that consists of a layer of pressure-sensitive material placed between two electrodes. When the layers are bonded, the sensor can be used to measure tensile force. The electrodes were fabricated from flexible copper-polyimide laminated film by photolithography and a wet-etching process, and a pressure-sensitive rubber layer was inserted between the electrodes and bonded to them with silver paste. Calibration tests were performed using a universal testing system with an affixed load cell for accurate force measurement. Tensile pressure was measured with the sensor, and the resolution of pressure detection was below the sub-kPa level.
机译：了解细胞间和细胞对底物的粘附力对于可重复培养和检测缺陷细胞很有用。在这项研究中，确定了拉伸压力与来自粘合层传感器的信号之间的关系。我们已经开发出一种薄而柔软的传感器膜，用于测量接触界面之间的力，该传感器膜由置于两个电极之间的一层压敏材料组成。粘合各层后，可以使用传感器测量拉力。电极通过光刻和湿蚀刻工艺由柔性铜-聚酰亚胺层压膜制成，并且在电极之间插入压敏橡胶层并通过银浆将其粘合。使用通用测试系统进行校准测试，该系统带有固定的称重传感器，以进行精确的力测量。用传感器测量拉伸压力，并且压力检测的分辨率低于sub-kPa水平。

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