Concentration-Responsive Soft Valve for Osmotic Flow Control

2021 ◽  
Author(s):  
Jaedeok Seo ◽  
Kaare H. Jensen ◽  
Wonjung Kim
Keyword(s):  
Flow Control ◽  
Osmotic Flow

scholarly journals Flow control in microfluidics devices: electro-osmotic Couette flow with joule heating effect

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
C. Ahamed Saleel ◽  
Saad Ayed Alshahrani ◽  
Asif Afzal ◽  
Maughal Ahmed Ali Baig ◽  
Sarfaraz Kamangar ◽  
...  
Keyword(s):  
Flow Control ◽  
Couette Flow ◽  
Joule Heating ◽  
Dynamic Viscosity ◽  
Microfluidic Devices ◽  
Heating Effect ◽  
Content Type ◽  
Osmotic Flow ◽  
Joule Heating Effect ◽  
Electro Osmotic Flow

PurposeJoule heating effect is a pervasive phenomenon in electro-osmotic flow because of the applied electric field and fluid electrical resistivity across the microchannels. Its effect in electro-osmotic flow field is an important mechanism to control the flow inside the microchannels and it includes numerous applications.Design/methodology/approachThis research article details the numerical investigation on alterations in the profile of stream wise velocity of simple Couette-electroosmotic flow and pressure driven electro-osmotic Couette flow by the dynamic viscosity variations happened due to the Joule heating effect throughout the dielectric fluid usually observed in various microfluidic devices.FindingsThe advantages of the Joule heating effect are not only to control the velocity in microchannels but also to act as an active method to enhance the mixing efficiency. The results of numerical investigations reveal that the thermal field due to Joule heating effect causes considerable variation of dynamic viscosity across the microchannel to initiate a shear flow when EDL (Electrical Double Layer) thickness is increased and is being varied across the channel.Originality/valueThis research work suggest how joule heating can be used as en effective mechanism for flow control in microfluidic devices.

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

2018 ◽  
Author(s):  
Moran Bercovici ◽  
Federico Paratore ◽  
Evgeniy Boyko ◽  
Govind V. Kaigala ◽  
Amir Gat
Keyword(s):  
Flow Control ◽  
Osmotic Flow ◽  
Microscale Flow ◽  
Electro Osmotic Flow

Maxwell stress-induced flow control of a free surface electro-osmotic flow in a rectangular microchannel

2013 ◽  
Vol 16 (4) ◽  
pp. 721-728 ◽  
Author(s):  
Manik Mayur ◽  
Sakir Amiroudine ◽  
Didier Lasseux ◽  
Suman Chakraborty
Keyword(s):  
Free Surface ◽  
Flow Control ◽  
Maxwell Stress ◽  
Rectangular Microchannel ◽  
Osmotic Flow ◽  
Induced Flow ◽  
Electro Osmotic Flow

Electro-Osmotic Flow Control in Microfluidics Systems

2001 ◽  
pp. 7-12
Author(s):  
R. E. Oosterbroek ◽  
M. H. Goedbloed ◽  
A. Trautmann ◽  
N. J. van der Veen ◽  
S. Schlautmann ◽  
...  
Keyword(s):  
Flow Control ◽  
Osmotic Flow ◽  
Electro Osmotic Flow

A microfluidic chip for blood plasma separation using electro-osmotic flow control

2011 ◽  
Vol 21 (8) ◽  
pp. 085019 ◽  
Author(s):  
Hai Jiang ◽  
Xuan Weng ◽  
Chan Hee Chon ◽  
Xudong Wu ◽  
Dongqing Li
Keyword(s):  
Flow Control ◽  
Blood Plasma ◽  
Microfluidic Chip ◽  
Plasma Separation ◽  
Osmotic Flow ◽  
Blood Plasma Separation ◽  
Electro Osmotic Flow
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