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[Smart Materials and Structures] In-plane cost-effective magnetically actuated valve for microfluidi


We present a new in-plane magnetically actuated microfluidic valve. Its simple design includes a circular area joining two channels lying on the same plane. The area is parted by a septum lying on and adhering to a magneto-active polymeric 'floor' membrane, keeping the channels normally separated (valve closed). Under the action of a magnetic field, the membrane collapses, letting the liquid flow below the septum (valve open). The valve was extensively characterized experimentally, and modeled and optimized theoretically. The growing interest in lab on chips, especially for diagnostics and precision medicine, is driving researchers towards smart, efficient and low cost solutions to the management of biological samples. In this context, the valve developed in this work represents a useful building-block for microfluidic applications requiring precise flow control, its main features being easy and rapid manufacturing, biocompatibility and low cost.

Marco Pugliese1, Francesco Ferrara2, Alessandro Paolo Bramanti2, Giuseppe Gigli1,3 and Vincenzo Maiorano1 Published 24 March 2017 • © 2017 IOP Publishing Ltd Smart Materials and Structures, Volume 26, Number 4

Link: http://iopscience.iop.org/article/10.1088/1361-665X/aa6490/meta

#04012017 #magnetic #membrane #MEMS #labonachip #valve

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