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[Modern Physics Letter B] Research of bubble flow characteristics in microfluidic chip


Bubble is the heart of the microfluidic chip, which takes a significant role in drug release, biological detection and so on. In this case, bubble flow characteristics in microfluidic chip are the key to realize its function. In this paper, bubble flow characteristics in the microfluidic chip have been studied with high speed photography system by controlling the wettability and the heat flux of the microelectrode surface. The result shows that bubble flows faster on the electrode with hydrophobic surface. In addition, loading current to the electrode with hydrophilic surface could also speed up the movement of bubble, and the flow rate of bubble increases with the increasing heat flux of the electrode.

Chao Qiu1, Han Cheng1, Shuxian Chen1 1Aeronautical Engineering Institute, Civil Aviation Flight University of China, Guanghan 618300, Sichuan, China

Received: 9 January 2017 Accepted: 11 February 2017 Published: 6 April 2017

Link: http://www.worldscientific.com/doi/abs/10.1142/S0217984917501093

#04122017 #bubble #microelectrodes #detection #Biologicalapplication

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