Light‐Powered Self‐Adaptive Mesostructured Microrobots for Simultaneous Microplastics Trapping and Fragmentation via in situ Surface Morphing

Author:

Ullattil Sanjay Gopal1ORCID,Pumera Martin123ORCID

Affiliation:

1. Future Energy and Innovation Laboratory Central European Institute of Technology Brno University of Technology Purkyňova 656/123 Brno 612 00 Czech Republic

2. Faculty of Electrical Engineering and Computer Science VSB – Technical University of Ostrava 17. listopadu 2172/15 Ostrava 70800 Czech Republic

3. Department of Medical Research China Medical University Hospital China Medical University No. 91 Hsueh‐Shih Road Taichung 404333 Taiwan

Abstract

AbstractMicroplastics, which comprise one of the omnipresent threats to human health, are diverse in shape and composition. Their negative impacts on human and ecosystem health provide ample incentive to design and execute strategies to trap and degrade diversely structured microplastics, especially from water. This work demonstrates the fabrication of single‐component TiO2 superstructured microrobots to photo‐trap and photo‐fragment microplastics. In a single reaction, rod‐like microrobots diverse in shape and with multiple trapping sites, are fabricated to exploit the asymmetry of the microrobotic system advantageous for propulsion. The microrobots work synergistically to photo‐catalytically trap and fragment microplastics in water in a coordinated fashion. Hence, a microrobotic model of “unity in diversity” is demonstrated here for the phototrapping and photofragmentation of microplastics. During light irradiation and subsequent photocatalysis, the surface morphology of microrobots transformed into porous flower‐like networks that trap microplastics for subsequent degradation. This reconfigurable microrobotic technology represents a significant step forward in the efforts to degrade microplastics.

Publisher

Wiley

Subject

Biomaterials,Biotechnology,General Materials Science,General Chemistry

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