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Nonclogging Resistive Pulse Sensing with Electrohydrodynamic Cone-Jet Bridges

机译:电动流体锥射电桥的无阻塞电阻式脉冲传感

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A new paradigm of resistive pulse sensing (Coulter counting) is developed using a liquid bridge in lieu of a solid pore as the sensing aperture, whereby the flexible liquid aperture circumvents the clogging issue of conventional Coulter counters. The electrohydrodynamic bridge is formed between two opposing Taylor cones and stabilized by radial polarization stresses. Passage of a colloidal particle through the upstream conical apex triggers a current oscillation at the resonant frequency of the cone-jet bridge. The relative current change is indicative of the particle-to-jet diameter ratio.
机译:使用液桥代替固体孔作为感测孔,开发了一种新的电阻脉冲感测(Coulter计数)范式,因此,灵活的液孔避免了传统库尔特计数器的堵塞问题。电动液压桥形成在两个相对的泰勒锥之间,并通过径向极化应力稳定。胶体颗粒通过上游圆锥形顶点会触发锥形喷射桥共振频率的电流振荡。相对电流变化表示颗粒与喷嘴直径之比。

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