Magnetic field responsive microspheres with tunable structural colors by controlled assembly of nanoparticles.

ABSTRACT: Dynamic color tuning has many useful applications in nature for communication, camouflage, mood indication, etc. Structural colors have more advanced applications due to their ability to respond to external stimuli by dynamically changing color. In this work, we proposed an efficient method to prepare magneto-chromatic microspheres with tunable structural color. Through a microfluidic technique, the magneto-chromatic microspheres containing Fe₃O₄@C magnetic particles were continuously prepared. The size of the microspheres decreases with the increase of PVA solution phase to ETPTA phase flow rate ratio. Furthermore, the microspheres with larger sizes more easily form close packed structures. Microspheres can be constrained in PVA to form a free-standing film af

SUBMITTER: Shang S 

PROVIDER: S-EPMC8982052 | biostudies-literature | 2022 Feb

REPOSITORIES: biostudies-literature