Structurally Dependent Self-Propulsion Behaviors of Pt-SiO₂ Micromotors.

ABSTRACT: The structural dependence of self-propelled motion in micro/nanomotors is essential for effectively predicting and controlling their dynamic behaviors. In this study, platinum-silica (Pt-SiO₂) micromotors, with structures ranging from spherical Janus to dimer configurations, are fabricated through conventional template-assisted deposition, followed by annealing. These structures are used to investigate how geometry influences motion. Our results demonstrate that the architecture of the Pt-SiO₂ micromotor strongly affects its propulsion mode and trajectory in solution. When immersed in a hydrogen peroxide (H₂O₂) solution, spherical Janus Pt-SiO₂ micromotors exhibit quasi-linear motion, driven by the Pt side (Pt pushing). In contrast, di

SUBMITTER: Zhou L 

PROVIDER: S-EPMC12787454 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature