Twin-Engine Janus Supramolecular Nanomotors with Counterbalanced Motion

• DOI: 10.1021/jacs.2c02682
• Publication Date: 2022-06-14T20:46:36Z
• Authors: Jingxin Shao; Shoupeng Cao; Hailong Che; Maria Teresa De M...; Hanglong Wu; Loai K. E. A. Abd...; Jan C. M. van Hest
• Keywords: Motion; Polymers; Gold; Hydrogen Peroxide; 02 engineering and technology; 0210 nano-technology; 01 natural sciences; 0104 chemical sciences

Supramolecular nanomotors were created with two types of propelling forces that able to counterbalance each other. The particles based on bowl-shaped polymer vesicles, or stomatocytes, assembled from the amphiphilic block copolymer poly(ethylene glycol)-block-polystyrene. first method propulsion was installed by loading nanocavity stomatocytes enzyme catalase, which enabled decomposition hydrogen peroxide into water and oxygen, leading a chemically induced motion. second attained applying hemispherical gold coating opposite side opening, making susceptible near-infrared laser light. By exposing these Janus-type twin engine both (H2O2) light, competing driving synchronously generated, resulting in counterbalanced, "seesaw effect" precisely manipulating incident power concentration H2O2, supramolecular could be halted standby mode. Furthermore, fact Janus equipped opposing motile also provided proof direction motion enzyme-activated stomatocytes. Finally, modulation effect", tuning net outcome coexisting forces, used attain switchable control behavior twin-engine nanomotors. can steered orthogonal mechanisms hold considerable potential for being complex tasks, including active transportation environmental remediation.