A Modular Microfluidic Device via Multimaterial 3D Printing for Emulsion Generation

A Modular Microfluidic Device via Multimaterial 3D Printing for Emulsion Generation

A Modular Microfluidic Device via Multimaterial 3D Printing for Emulsion Generation

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Abstract

3D-printing (3DP) technology has been developing rapidly. However, limited studies on the contribution of 3DP technology, especially multimaterial 3DP technology, to droplet-microfluidics have been reported. In this paper, multimaterial 3D-printed devices for the pneumatic control of emulsion generation have been reported. A 3D coaxial flexible channel with other rigid structures has been designed and printed monolithically. Numerical and experimental studies have demonstrated that this flexible channel can be excited by the air pressure and then deform in a controllable way, which can provide the active control of droplet generation. Furthermore, a novel modular microfluidic device for double emulsion generation has been designed and fabricated, which consists of three modules: function module, T-junction module, and co-flow module. The function module can be replaced by (1) Single-inlet module, (2) Pneumatic Control Unit (PCU) module and (3) Dual-inlet module. Different modules can be easily assembled for different double emulsion production. By using the PCU module, double emulsions with different number of inner droplets have been successfully produced without complicated operation of flow rates of different phases. By using single and dual inlet module, various double emulsions with different number of encapsulated droplets or encapsulated droplets with different compositions have been successfully produced, respectively.

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In this study, the OB1 pressure controller MK3 was one of the four syringes used to produce a stable periodic pressure wave.

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DOI:

10.3390/mi12030345

RELATED PRODUCTS:

Microfluidic Flow Controller

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