H2O2-sensitized single-component TiO2 micromotors: blue-light-driven propulsion and collective cell manipulation

Jianhua Zhang; Jiaqi Song; Yingmei Fang; Panpan Cao; Fangzhi Mou; Jianguo Guan; Ayusman Sen

doi:10.1039/D5CC02316E

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H₂O₂-sensitized single-component TiO₂ micromotors: blue-light-driven propulsion and collective cell manipulation†

Jianhua Zhang,

‡*^a Jiaqi Song,‡^b Yingmei Fang,^a Panpan Cao,^a Fangzhi Mou,

^c Jianguo Guan

^c and Ayusman Sen

*^b

Author affiliations

* Corresponding authors

^a Hubei Key Laboratory of Biomass Fibers and Eco-dyeing & Finishing, College of Chemistry and Chemical Engineering, Wuhan Textile University, Wuhan 430200, China
E-mail: jhzhang@wtu.edu.cn

^b Department of Chemistry, The Pennsylvania State University, University Park, PA 16802, USA
E-mail: asen@psu.edu

^c State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070, China

Abstract

Pristine anatase TiO₂ micromotors exhibit blue-light-driven phototaxis upon trace H₂O₂ sensitization. Experimental and computational studies reveal surface peroxide complex-mediated charge transfer. These eco-friendly micromotors demonstrate programmable swarming and cell manipulation via light-controlled diffusiophoresis.

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Article information

DOI: https://doi.org/10.1039/D5CC02316E
Article type: Communication
Submitted: 25 Apr 2025
Accepted: 20 May 2025
First published: 21 May 2025

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Chem. Commun., 2025, Advance Article

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H₂O₂-sensitized single-component TiO₂ micromotors: blue-light-driven propulsion and collective cell manipulation

J. Zhang, J. Song, Y. Fang, P. Cao, F. Mou, J. Guan and A. Sen, Chem. Commun., 2025, Advance Article , DOI: 10.1039/D5CC02316E

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