DESIGN CONCEPTS FOR PREVENTING GAS BUBBLE INTERFERENCE IN MICROFLUIDIC DEVICES

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Unintendedly introduced gas bubbles in channels can significantly interfere with performance and behavior of microfluidic systems. Thus, there is a high demand for smart microfluidic system designs which are capable of preventing gas bubbles. In this work, we develop two different bubble interference preventing system designs: a degasser device that actively removes gas bubbles from the liquid based on pressure driven gas permeation, and a passive micro channel design that provides a guiding mechanism based on the gas bubbles’ effort to minimize their surface energy. The effective performances of the devices are demonstrated.

Keywords:
microfluidics, gas bubble removal, degassing

Autoři: Sebastian Richert; Oliver Peters; Vu Hoa Nguyen; Uwe Schnakenberg
Působiště autorů: Institute of Materials in Electrical Engineering 1, RWTH Aachen University, Germany
Vyšlo v časopise: Lékař a technika - Clinician and Technology No. 2, 2016, 46, 41-45
Kategorie: Původní práce

Souhrn

Keywords:
microfluidics, gas bubble removal, degassing

Zdroje

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