Photothermal Cavitation-Driven Micromotor to Penetrate Cell Membrane.

ABSTRACT: Photothermally driven micro/nanomotors efficiently convert light into mechanical motion, making them highly attractive for biomedical applications due to their exceptional biocompatibility and safety. However, one mystery of the photothermally driven micro/nanomotor is the wide range of reported light intensities applied, ranging from 1 W cm^-2 to over 10⁵ W cm^-2. To address this mystery, we systematically investigated the propulsion of a carbon microbottle-based micromotor under three illumination conditions: continuous laser, pulsed laser, and scanning laser, where a new cavitation-driven mechanism is identified. Using a high-speed camera, we find that the instantaneous deposition of laser energy on the micromotors can lead to transient and localized evapo

SUBMITTER: Zeng B 

PROVIDER: S-EPMC11912328 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature