Yijiang Mu

Sep 10, 2024 | pubs.acs.org | Wendi Duan |Yijiang Mu |Xiaoyong Mo |Zhisheng Wang

AbstractClick to copy section linkSection link copied!Active colloids with the ability to self-propel and collectively organize are emerging as indispensable elements in microrobotics and soft matter physics. For chemically powered colloids, their activity is often induced by gradients of chemical species in the particle’s vicinity. The direct manipulation of these gradients, however, presents a considerable challenge, thereby limiting the extent to which active colloids can be controlled.

May 2, 2024 | pubs.rsc.org | Yijiang Mu |Wendi Duan |Pokfulam Road

Colloidal synthesis of metallodielectric Janus matchsticks† We present a gram-scale synthesis of metallodielectric Janus matchsticks, which feature a gold-coated silica sphere and a silica rod. SiO2 Janus matchsticks are synthesized in one batch by growing amine-functionalized SiO2 spheres at the end of SiO2 rods. Gold deposition on the spheres produces Au–SiO2 Janus matchsticks with an aspect ratio controlled by the rod length.