Nanowerk May 22, 2023
It is challenging to construct intelligent rewritable display systems with integrated functionality of remote control, rapid activation, multicolor and multimode display. Researchers in China developed a kind of rewritable hydrogel multicolor systems that can combine the merits of near-infrared (NIR) light-writing and projecting modes for on-demand information display. The systems have multilayer layout consisting of poly(dimethylsiloxane) (PDMS)-sealed carbon nanotubes (CNTs) film as photothermal control unit and embedded fluorescent hydrogels as multicolor display unit, in which thermoresponsive hydrogel is constrained within non-responsive hydrogel. The design resulted in rapid and reversible hand-written display of arbitrary information. They demonstrated sustainable light-projecting display of predesigned multicolor patterns… read more. TECHNICAL ARTICLEÂ