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Self-Propelled Micro-/Nanomotors Based on Controlled Assembled Architectures.

Xiankun Lin1, Zhiguang Wu1, Yingjie Wu1

  • 1State Key Laboratory of Robotics and System (HIT), Micro/Nanotechnology Research Center Harbin Institute of Technology, Harbin, 150080, China.

Advanced Materials (Deerfield Beach, Fla.)
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Summary

Synthetic micro-/nanomotors (MNMs) offer self-propelled motion for biomedical applications. Combining bottom-up and top-down assembly strategies enables mass production, stimulus-responsive, and multifunctional MNMs.

Keywords:
architecturebiomedical applicationscontrolled assemblymicro-/nanomotorsself-propulsion

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Area of Science:

  • Materials Science
  • Nanotechnology
  • Biomedical Engineering

Background:

  • Synthetic micro-/nanomotors (MNMs) exhibit self-propelled motion in fluids by converting various energy sources into mechanical movement.
  • Potential applications span biomedicine and beyond, but challenges remain in their development and deployment.

Purpose of the Study:

  • To investigate a combined bottom-up and top-down assembly strategy for engineering autonomous, multifunctional MNMs.
  • To highlight advances in integrating diverse functional components into MNM architectures for controlled fabrication and motion.
  • To discuss the realization of controlled motion (speed, direction, state) and biomedical applications.

Main Methods:

  • Utilizing layer-by-layer assembly and molecular self-assembly for MNM fabrication.
  • Employing the concept of nanoarchitectonics to guide the integration of functional components.
  • Investigating strategies for controlled fabrication and motion control of MNMs.

Main Results:

  • MNMs derived from controlled assemblies offer advantages like mass production, response to external stimuli, and multifunctionality.
  • Successful integration of diverse functional components into various architectures has been achieved.
  • Controlled fabrication, motion control, and biomedical applications of MNMs are demonstrated.

Conclusions:

  • The combined assembly approach is a promising strategy for developing advanced, autonomous MNMs.
  • Further research is needed to address remaining challenges and explore future directions in MNM technology.
  • MNMs hold significant potential for diverse applications, particularly in the biomedical field.