Autonomous Plasmon-Enhanced Photocatalytic Microrobots Powered by Lorentz Force

Project Information

PLOBOT

Grant agreement ID: 101066396

DOI

10.3030/101066396

Project closed

EC signature date 7 July 2022

Start date 1 December 2022

End date 31 December 2024

Funded under

• Marie Skłodowska-Curie Actions (MSCA)

Total cost

No data

EU contribution

€ 173 847,36

Coordinated by

LUDWIG-MAXIMILIANS-UNIVERSITAET MUENCHEN
Germany

Periodic Reporting for period 1 - PLOBOT (Autonomous Plasmon-Enhanced Photocatalytic Microrobots Powered by Lorentz Force)

Reporting period: 2022-12-01 to 2024-12-31

Summary of the context and overall objectives of the project

The PLOBOT project focused on developing light-driven plasmonic microrobots for precise motion control and enhanced photocatalysis. These microrobots integrate plasmonic and catalytic nanostructures, allowing for autonomous movement and efficient reaction kinetics under light illumination. The project introduced light-induced bipolar electrochemistry as a novel fabrication method, enabling precise material structuring at the nanoscale.

This research contributes to sustainable nanotechnology, environmental remediation, and microfluidic catalysis by demonstrating how motion-assisted reactions and plasmonic interactions can improve catalytic efficiency. The findings support the development of programmable microrobots for real-time chemical processes, with applications in water purification, targeted synthesis, and biomedical nanorobotics.

Work performed from the beginning of the project to the end of the period covered by the report and main results achieved so far

Fabrication of Janus Microrobots: Developed TiO2/Pd microrobots using light-assisted bipolar electrochemistry, achieving precise asymmetry for controlled motion and catalytic activity.
Motion and Reaction Control: Demonstrated plasmonic microrobots with enhanced mobility, leading to efficient mass transport and accelerated catalytic reactions.
Microdrone Functionalization: Integrated TiO2 into plasmonic microdrones, enabling localized photocatalysis at specific reaction sites, opening new possibilities for light-controlled microreactors.
Catalytic Applications: Achieved rapid pollutant degradation and hydrogen generation, showcasing the potential of microrobots in environmental and energy-related processes.
These breakthroughs establish light-induced bipolar electrochemistry as a powerful tool for microrobot engineering, enabling precise material control and motion-driven catalysis.

Progress beyond the state of the art and expected potential impact (including the socio-economic impact and the wider societal implications of the project so far)

The PLOBOT project introduced several advances beyond existing technologies:

Light-Driven Nanoengineering: The project pioneered light-assisted bipolar electrochemistry for the fabrication of Janus microrobots, offering unparalleled control over material deposition and motion.
Plasmonic Microdrones for On-Demand Catalysis: By integrating TiO2 into plasmonic microdrones, the project enabled localized catalytic reactions, expanding the role of light-driven nanorobotics.
Motion-Enhanced Catalysis: Demonstrated how microrobot self-propulsion enhances reaction rates, a critical step toward autonomous catalytic systems for environmental and industrial applications.

To ensure further uptake and success, future research should focus on:

Scalability & Mass Production: Optimizing fabrication methods for large-scale production of microrobots.
Integration with Existing Technologies: Applying these microrobots to real-world industrial or biomedical applications.
Advanced Motion Control: Exploring external field manipulation (light, electric, or magnetic) for enhanced precision.
Environmental and Energy Applications: Expanding their role in water purification, pollutant degradation, and hydrogen production.

These advancements position plasmonic microrobots as a transformative technology for next-generation catalysis and nanorobotics.