Snowman-shaped Janus particles with site-selective DNA Functionalization
발표자
공보현 (포항공과대학교)
연구책임자
이기라 (포항공과대학교)
초록
내용
Colloidal particles with asymmetric geometry and surface chemistry have attracted significant attention for their unique properties in directional self-assembly, targeted delivery, and emulsion stabilization [1]. Among them, snowman-shaped Janus particles which are composed of two partially fused spherical lobes with distinct physical or chemical properties represent a promising platform for multifunctional colloidal systems. Here we present one effective method for fabricating such particles and functionalizing DNA selectively. Polystyrene (PS) spheres are used as cores for growing 3-(trimethoxysilyl)propyl methacrylate (TPM) droplet on their surfaces under aqueous conditions [2]. Typically, the morphology of TPM lobe can be finely controlled by precisely tuning parameters such as TPM volume fraction and surfactant concentration. And DNA can be selectively functionalized by exploiting the difference in swelling behavior between the two spherical lobes.