Colloidal Photonic Crystals of Reusable Hydrogel Microparticles for Sensor and Laser Applications.

ABSTRACT: Although a wide variety of techniques have been developed to date for the fabrication of high-quality colloidal photonic crystals (CPCs) using monodisperse silica and polystyrene microparticles, poly(N-isopropylacrylamide) (PNIPA) hydrogel microparticles have rarely been utilized for the preparation of active CPCs despite the intriguing feature of temperature-responsive volume changes. This report describes the promising potential abilities of PNIPA hydrogel microparticles for sensor and laser applications. Monodisperse PNIPA hydrogel microparticles were synthesized by emulsion polymerization, and the microparticle diameter was finely controlled by adjusting the surfactant concentration. Such hydrogel microparticles spontaneously formed uniform CPCs with visible Bragg reflection eve

SUBMITTER: Iwata N 

PROVIDER: S-EPMC8662631 | biostudies-literature | 2021 Dec

REPOSITORIES: biostudies-literature