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Controlling Long-Distance Photoactuation with Protein Additives
Jian Zhao1, Qian Li1, Bianliang Miao1
1Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710062, China.
Small (Weinheim an Der Bergstrasse, Germany)
|April 21, 2020
Summary
Researchers developed a novel light-controlled wireless actuation system using protein-graphene hybrid films. This technology enables precise remote control over devices over long distances, overcoming limitations of radio frequency control.
Area of Science:
- Materials Science
- Biotechnology
- Nanotechnology
Background:
- Long-distance wireless actuation is crucial for remote control in various fields.
- Radio frequency (RF) control faces limitations due to electromagnetic interference (EMI).
- Light control offers a promising alternative to RF, but lacks sensitive actuators for long-distance applications.
Purpose of the Study:
- To develop a highly light-sensitive actuator for long-distance wireless actuation.
- To overcome the limitations of existing wireless actuation technologies.
- To explore the potential of amyloid-like protein aggregates in advanced actuation systems.
Main Methods:
- Organizing single-layer reduced graphene oxide (rGO) into multilayer stacks using amyloid-like protein aggregates.
- Creating a hybrid film with robust interfacial adhesion on various surfaces.
- Demonstrating photoactuation via a sensitive photothermal effect using a blue laser.
Main Results:
- Achieved a fast bending response (1 second) for circuit switching.
- Demonstrated reliable actuation from 100 meters away.
- Extrapolated a potential photoactuation distance of 50 km with high-power lasers.
Conclusions:
- Amyloid-like protein aggregates can effectively organize rGO for long-distance photoactuation.
- The developed hybrid films exhibit sensitive photothermal response and robust adhesion.
- This technology holds significant potential for remote light control of robots and devices in diverse applications.
