Multifunctional and self-propelled spherical Janus nano/micromotors: recent advances

Area of Science:

• Materials Science
• Nanotechnology
• Chemical Engineering

Background:

• Autonomous nano/micromotors convert chemical or light energy into mechanical motion.
• This technology is at the forefront of materials research with potential biomedical and environmental applications.

Purpose of the Study:

• To review recent progress in autonomous self-propelled multifunctional Janus nano/micromotors.
• To discuss novel motor development, motion mechanisms, and preparation routes.
• To explore factors affecting motor performance and clarify motion mechanisms.

Main Methods:

• Comparison of different preparation and synthesis routes for Janus motors.
• Analysis of the effects of size, interfacial structures, and porosity on motor motion.
• Application of newly developed techniques to observe interface charge distribution for light-driven motors.

Main Results:

• Discussion of novel multifunctional Janus motors and their motion mechanisms.
• Comparison of various preparation and synthesis strategies.
• Insights into how size, interfaces, and porosity influence directional motion and speed.
• Clarification of electrophoresis mechanisms in light-derived micromotors through advanced imaging.

Conclusions:

• Janus micromotors represent a promising technology for diverse applications.
• Further research is encouraged using facile methodologies to develop novel motors with enhanced capabilities.
• Understanding interfacial charge dynamics is crucial for optimizing light-driven micromotor performance.