Related Experiment Video
Updated: Sep 29, 2025

09:58
A Modular Microfluidic Technology for Systematic Studies of Colloidal Semiconductor Nanocrystals
Published on: May 10, 2018
9.7K
Modularizable Liquid-Crystal-Based Open Surfaces Enable Programmable Chemical Transport and Feeding using Liquid
Yang Xu1, Yun Chang2, Yuxing Yao3
1William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, OH, 43210, USA.
Advanced Materials (Deerfield Beach, Fla.)
|March 25, 2022
Summary
Researchers developed novel liquid crystal (LC) surfaces for droplet microreactors. These surfaces enable controlled chemical release and droplet movement, advancing automated bio-diagnosis and material synthesis.
Area of Science:
- Materials Science
- Chemical Engineering
- Biotechnology
Background:
- Droplet-based miniature reactors offer unique reaction kinetics for fundamental studies and applications.
- Current methods for chemical feeding in these reactors are often complex, costly, or limit droplet mobility.
Purpose of the Study:
- To design and synthesize novel liquid crystal (LC)-based open surfaces for controlled chemical release in droplet microreactors.
- To overcome limitations in precise chemical feeding and maintain free droplet movement.
Main Methods:
- Synthesis of a new class of liquid crystal (LC)-based open surfaces.
- Utilizing programmable LC phase transitions for controlled chemical release.
- Demonstrating modular assembly of LC surfaces for diverse chemical reactions.
Main Results:
- The developed LC surfaces exhibit intrinsic slipperiness and self-healing properties.
- These surfaces enable controlled chemical release without hindering droplet transport.
- Successful execution of various reactions including sequential/parallel reactions, crystal growth, and polymer synthesis within droplets.
- Development of an automated LC-based chemical feeding device for stem cell differentiation.
Conclusions:
- The novel LC surfaces offer enhanced automation, responsiveness, and controllability for droplet microreactors.
- This technology advances applications in automated bio-diagnosis, material synthesis, and stem cell differentiation.

