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Updated: Dec 9, 2025
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Hand Controlled Manipulation of Single Molecules via a Scanning Probe Microscope with a 3D Virtual Reality Interface
Published on: October 2, 2016
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Particle Manipulation with External Field; From Recent Advancement to Perspectives
Akihisa Miyagawa1, Tetsuo Okada2
1Department of Chemistry, Faculty of Pure and Applied Science, University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan.
Summary
Physical forces enable precise manipulation and property evaluation of microparticles. This technique indirectly probes nanomaterials by observing tethered microparticles in external fields.
Area of Science:
- Physics
- Materials Science
- Biotechnology
Background:
- Physical forces (dielectric, magnetic, electric, optical, acoustic) offer unique particle manipulation capabilities.
- Microparticles like polymer particles, liquid droplets, and biological cells can be trapped and transported using external fields.
- Direct manipulation of nanomaterials is challenging due to weak forces.
Purpose of the Study:
- To review advancements in particle manipulation using physical forces.
- To discuss the potentials, advantages, and limitations of these techniques.
- To highlight indirect evaluation of nanomaterial behavior via tethered microparticles.
Main Methods:
- Utilizing external physical fields (electric, magnetic, optical, acoustic) to exert forces on microparticles.
- Controlling particle position and movement by adjusting field strength.
- Observing microparticle behavior with tethered nanomaterials for indirect analysis.
Main Results:
- Physical forces allow for precise trapping and transport of microparticles.
- Particle location shifts in response to field strength enable physicochemical property evaluation.
- Indirect observation of microparticles provides insights into nanomaterial interactions and reactions.
Conclusions:
- Physical force-based particle manipulation is a versatile tool with significant potential.
- The technique offers advantages for evaluating properties and studying behaviors of difficult-to-manipulate substances.
- Limitations exist, particularly for direct manipulation of very small entities, but indirect methods offer solutions.
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