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Buoyancy-Driven Micro/-Nanomotors: From Fundamentals to Applications
Ashish Kumar Shukla1,2, Satyapriya Bhandari3, Shirsendu Mitra4
1Laboratory of Soft and Living Materials, Department of Physics, Indian Institute of Technology, Palaj, Gandhinagar, Gujarat, 382055, India.
Small (Weinheim an Der Bergstrasse, Germany)
|January 15, 2024
Summary
Buoyancy-driven micro/nanomotors (MNMs) offer simple, efficient propulsion for navigating complex fluids. This review details their state-of-the-art, highlighting potential for innovation in nanotechnology and beyond.
Area of Science:
- Nanotechnology
- Biomedical Engineering
- Microfluidics
- Environmental Science
- Energy Harvesting
Background:
- Self-powered micro/nanomotors (MNMs) convert chemical/biochemical energy into mechanical motion.
- MNMs navigate complex fluidic environments using external stimuli like magnetic or electric fields.
- Buoyancy-driven MNMs are recognized for their simplicity, efficiency, and versatility.
Purpose of the Study:
- To provide a fundamental and detailed analysis of buoyancy-driven micro/nanomotors (MNMs).
- To inspire further research and innovation in the field of buoyancy-driven MNMs.
Main Methods:
- Review of existing literature on buoyancy-driven MNMs.
- Analysis of propulsion mechanisms based on density variation.
- Examination of factors influencing MNM motion, such as pH and chemical concentration.
Main Results:
- Buoyancy-driven MNMs harness density variations for propulsion.
- Directional control is achieved by restricting propulsion, enhancing efficiency in isotropic solutions.
- Environmental factors like pH, ionic strength, and chemical gradients influence MNM movement.
Conclusions:
- Buoyancy-driven MNMs represent a promising technology for various applications.
- Further research into buoyancy-driven MNMs can lead to significant advancements in nanotechnology and related fields.
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