| 초록 |
Janus particles are compartmentalized colloids with two sides of different chemistry or polarity. They are unique among the nano/micro objects because they provide asymmetry and can thus impart drastically different chemical or physical properties and directionality within a single particle. 10,12-pentacosadiynoic acid(PCDA) can make liposome using self-assembly in solution and crosslinked liposome using UV to produce spherical particles. The particles are made to emit a specific color (blue color). When these particles are exposed to external stimuli, the color changes and these properties can be used as sensors. In order to impart self-propelling to the PCDA particles, a method of Pt sputtering is used to coat the hemispherical particles. The characteristics and motion of Janus particles were examined and traced by OM and HR-SEM. Especially, the effects of structural parameters on the motion were systematically investigated. |
