Toward microscale flow control using non-uniform electro-osmotic flow

Federico Paratore; Evgeniy Boyko; Amir D. Gat; Govind V. Kaigala; Moran Bercovici

doi:10.1117/12.2300963

19 February 2018 Toward microscale flow control using non-uniform electro-osmotic flow

Federico Paratore, Evgeniy Boyko, Amir D. Gat, Govind V. Kaigala, Moran Bercovici

Proceedings Volume 10491, Microfluidics, BioMEMS, and Medical Microsystems XVI; 104910P (2018) https://doi.org/10.1117/12.2300963
Event: SPIE BiOS, 2018, San Francisco, California, United States

Abstract

We present a novel method that allows establishing desired flow patterns in a Hele-Shaw cell, solely by controlling the surface chemistry, without the use of physical walls. Using weak electrolytes, we locally pattern the chamber's ceiling and/or floor, thus defining a spatial distribution of surface charge. This translates to a non-uniform electric double layer which when subjected to an external electric field applied along the chamber, gives rise to non-uniform electroosmotic flow (EOF). We present the theory that allows prediction and design of such flows fields, as well as experimental demonstrations opening the door to configurable microfluidic devices.

Citation Download Citation

Federico Paratore, Evgeniy Boyko, Amir D. Gat, Govind V. Kaigala, and Moran Bercovici "Toward microscale flow control using non-uniform electro-osmotic flow ", Proc. SPIE 10491, Microfluidics, BioMEMS, and Medical Microsystems XVI, 104910P (19 February 2018); https://doi.org/10.1117/12.2300963

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available