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Real-time and reversible light-actuated microfluidic channel squeezing in dye-doped PDMS

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Abstract

The azobenzene chromophore is used as a functional dye for the development of smart microfluidic devices. A single layer microfluidic channel is produced, exploiting the potential of a dye doped PDMS formulation. The key advantage of this approach is the possibility to control the fluid flow by means of a simple light stimulus. Furthermore, the deformation can be controlled in time, space and intensity, giving rise to several degrees of freedom in the actuation of the channel squeezing. A future perspective will be the implementation of the microfluidic platform with structured light, to have the possibility to control the flow in a parallel and reversible manner at several points, modifying the pattern in real time.

Graphical abstract: Real-time and reversible light-actuated microfluidic channel squeezing in dye-doped PDMS

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Article information


Submitted
06 Feb 2020
Accepted
23 Mar 2020
First published
24 Mar 2020

Soft Matter, 2020, Advance Article
Article type
Paper

Real-time and reversible light-actuated microfluidic channel squeezing in dye-doped PDMS

A. Angelini, U. Agero, F. Ferrarese Lupi, M. Fretto, F. Pirri and F. Frascella, Soft Matter, 2020, Advance Article , DOI: 10.1039/D0SM00217H

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