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Methods for Measuring the Orientation and Rotation Rate of 3D-printed Particles in Turbulence
Published on: June 24, 2016
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Sorting of chiral active particles driven by rotary obstacles.
1Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, School of Physics and Telecommunication Engineering, South China Normal University, 510006 Guangzhou, China.
The Journal of Chemical Physics
|September 17, 2015
Summary
This study introduces a new method to separate chiral microswimmers using rotating obstacles. Optimal conditions achieve maximum separation efficiency for these active particles.
Area of Science:
- Physics
- Materials Science
- Chemical Engineering
Background:
- Sorting microswimmers by mobility is crucial for scientific and engineering applications.
- Chiral active particles present unique challenges in separation and manipulation.
Purpose of the Study:
- To develop a novel method for sorting mixed chiral particles.
- To investigate the conditions for efficient separation and maximal capture efficiency.
Main Methods:
- Utilizing two oppositely rotating obstacles to interact with chiral particles.
- Analyzing the relationship between obstacle angular speed, particle angular speed, and self-propulsion speed.
Main Results:
- Complete separation of mixed chiral particles is achievable under specific conditions.
- Maximal capture efficiency is attained when angular and self-propulsion speeds meet a defined relation.
Conclusions:
- The proposed method offers an effective way to sort chiral active particles.
- Potential applications include particle capture, sorting, and chirality measurement.
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