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Light-Responsive Nanofibrous Motor with Simultaneously Precise Locomotion and Reversible Deformation
Pingping Feng1, Xiaolong Du1, Juan Guo1
1Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an 710069, Shaanxi, People's Republic of China.
ACS Applied Materials & Interfaces
|February 15, 2021
Summary
This study introduces novel light-responsive poly(vinyl alcohol)/carbon composite micromotors. These advanced motors offer rapid, controlled, and multimodal movement with shape-changing capabilities for diverse applications.
Area of Science:
- Materials Science
- Nanotechnology
- Robotics
Background:
- Existing light-powered micromotors face limitations in speed, control, locomotion modes, and deformability.
- There is a need for advanced micromotors with enhanced performance and functionality for various applications.
Purpose of the Study:
- To develop a novel light-responsive micromotor with improved speed, controllability, and locomotion capabilities.
- To engineer a micromotor that exhibits controllable deformation during movement.
- To demonstrate the potential applications of the developed micromotor.
Main Methods:
- Fabrication of poly(vinyl alcohol)/carbon (PVA/carbon) composite micromotors using a combination of electrospinning and Chinese ink brushing.
- Incorporation of carbon nanoparticles to achieve a gradient structure and high surface loading.
- Characterization of motor performance under light irradiation, including speed, direction control, and locomotion modes.
Main Results:
- The fabricated PVA/carbon micromotors demonstrated rapid locomotion (39 mm/s) under light irradiation.
- Achieved direction-controlled and multimodal locomotion, including vertical movement, horizontal motion, and rotation.
- The gradient-aligned structure enabled controllable and reversible deformation during locomotion.
Conclusions:
- The developed light-responsive micromotors overcome limitations of existing designs, offering enhanced performance.
- The gradient-structured PVA/carbon composite micromotors show significant potential for applications in cargo delivery, environmental monitoring, and microrobotics.
- This work provides a foundation for designing novel photosensitive motors for advanced applications.
