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Updated: Feb 25, 2026

Microfluidic Platform with Multiplexed Electronic Detection for Spatial Tracking of Particles

Microfluidic Platform with Multiplexed Electronic Detection for Spatial Tracking of Particles

Published on: March 13, 2017

Coating and Patterning Functional Materials for Large Area Electrofluidic Arrays.

Hao Wu¹, Biao Tang², Robert A Hayes³

¹Electronic Paper Display Institute, South China Academy of Advanced Optoelectronics, South China Normal University, Higher Education Mega Center, Guangzhou 510006, China. wuhao@scnu.edu.cn.

Materials (Basel, Switzerland)

|August 5, 2017

Summary

This summary is machine-generated.

Screen printing creates uniform, pinhole-free fluoropolymer dielectric layers for electrofluidic devices. This method enables precise patterning for self-assembly and reversible liquid control, suitable for mass production.

Keywords:

electrofluidic functional materials large area arrays printing technology

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Area of Science:

Materials Science
Surface Chemistry
Microfluidics

Background:

Industrialization of electrofluidic devices demands high-performance, large-area substrates with efficient material use.
Existing methods face challenges in achieving homogeneous dielectric layers and controlled surface properties.

Purpose of the Study:

To develop a scalable method for fabricating engineered substrates for electrofluidic devices.
To demonstrate the utility of screen printing for creating patterned amorphous fluoropolymer dielectric layers.

Main Methods:

Screen printing amorphous fluoropolymer dielectric layers onto large substrates.
Slit coating photoresist over the hydrophobic fluoropolymer layer.
Conventional photolithography for patterning the photoresist to create chemical contrast.

Main Results:

Achieved homogeneous, pinhole-free, patterned amorphous fluoropolymer dielectric layers via screen printing.
Demonstrated successful patterning of photoresist on an extremely hydrophobic surface.
Enabled precise liquid dosing by self-assembly and highly-reversible electrofluidic switching.

Conclusions:

Screen printing is an effective method for producing engineered substrates for electrofluidic devices.
The developed methodology integrates materials, interfacial chemistry, and processing for scalable production.
The process is well-suited for high-volume manufacturing in existing LCD facilities.