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Programmable Microfluidics Enabled by 3D Printed Bionic Janus Porous Matrics for Microfluidic Logic Chips.

Mingzhu Xie¹, Ziheng Zhan¹, Chengqi Zhang²

¹Interdisciplinary Research Center of Low-Carbon Technology and Equipment, College of Mechanical and Vehicle Engineering, Hunan University, Changsha, 410082, P. R. China.

Small (Weinheim an Der Bergstrasse, Germany)

|May 1, 2023

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This summary is machine-generated.

Researchers developed programmable 3D printed microfluidic matrices inspired by tree xylem for directional liquid transport. This bio-inspired design enables ultra-fast liquid rising and controlled flow for advanced applications.

Area of Science:

Biomimetic engineering
Microfluidics
Materials science

Background:

Nature exhibits optimized structures for directional liquid transport, such as tree xylem.
Existing microfluidic systems often lack programmability and efficient directional control.

Purpose of the Study:

To fabricate programmable microfluidic porous matrices using 3D printing.
To achieve ultra-fast, directional liquid transport inspired by natural systems.
To demonstrate the potential for tailored wettability and geometric optimization.

Main Methods:

Utilized projection micro-stereolithography (PµSL) for 3D printing of porous matrices.
Engineered matrices with internal superhydrophilicity and external hydrophobicity.
Investigated the impact of geometric parameters on unidirectional microfluidic performance.

Keywords:

Laplace force PµSL 3D printing bionic porous matrices patterned liquid flow programmable microfluidics

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Main Results:

Successfully fabricated bionic porous matrices capable of ultra-fast liquid rising via capillary force.
Demonstrated programmable and successive liquid flow in a preferred direction.
Validated the functionality with a printed liquid displayer and a microfluidic logic chip.

Conclusions:

The developed 3D printed microfluidic matrices offer programmable directional liquid transport.
The bio-inspired design enables efficient capillary-driven flow and tailored wettability.
These matrices hold promise for applications in patterned liquid flow, displayers, logic chips, and separation technologies.