In-plane cost-effective magnetically actuated valve for microfluidic applications

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 se...

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Published in:Smart materials and structures 2017-04, Vol.26 (4), p.45033
Main Authors: Pugliese, Marco, Ferrara, Francesco, Bramanti, Alessandro Paolo, Gigli, Giuseppe, Maiorano, Vincenzo
Format: Article
Language:English
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actuator
lab on chip
magnetic
microfluidic
valve
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description 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.
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subjects actuator
lab on chip
magnetic
microfluidic
valve
title In-plane cost-effective magnetically actuated valve for microfluidic applications
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