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Micro flow-focusing devices under different injection conditions are studied in order to produce highly monodisperse droplets. With rapid and periodic breaking-up of the focused disperse phase in three-stream laminar flow system, the dependence of the droplet size on the flow-focusing junction angles is evaluated at different flow rates. The experimental data is analyzed systematically. Explanation...
The microbes are intimately to our lives, therefore the researches of behaviors of microbes such as growth, division, anastomosis, transfection, transformation, death etc. are very important. Traditional methods such as freeze-etching method, can only find different growing periods through different cells so there is still no definite evidence for the existence of some biological activities. This...
Electrowetting is widely used in "lab on a chip" devices [1], adjustable lenses [2], display technology [3], mixers [4], fibre optics, and biotechnology-related microfluidic devices. It is its nodistinctive manipulating water droplet with the use of electric fields that electrowetting has huge potential in driving blood, substrate, and many kinds of expensive reagent. We will use this technology...
Research on encapsulation has much future potential in pharmacology and biochemistry. In this paper, we present an approach to manipulate the movement of sodium alginate beads in micro-channel. Electric field is an effective method to control the movement of droplets, but its current, if there is any, may cause extra heat and the fabrication of on chip electrode is also expensive. However, by mixing...
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