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Light-Writing and Projecting Multicolor Fluorescent Hydrogels for On-Demand Information Display
Shuxin Wei1,2, Wei Lu1,2, Huihui Shi1,2
1Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, China.
Advanced Materials (Deerfield Beach, Fla.)
|April 12, 2023
Summary
Researchers developed a rewritable hydrogel display inspired by chameleons. This system uses near-infrared light for rapid, multicolor information display and projection, offering a sustainable alternative to single-use devices.
Area of Science:
- Materials Science
- Optoelectronics
- Biomimetic Systems
Background:
- Intelligent rewritable displays are crucial for reducing electronic waste in the Internet-of-Things era.
- Current systems struggle with integrated remote control, rapid activation, multicolor, and multimode display capabilities.
Purpose of the Study:
- To develop a novel rewritable hydrogel multicolor display system.
- To achieve integrated functionalities including remote control, rapid activation, and multimode display (writing and projecting).
Main Methods:
- Mimicking chameleon skin's multilayer chromatophore structure.
- Utilizing a multilayer system with poly(dimethylsiloxane)-sealed carbon nanotubes (CNTs) as a photothermal unit.
- Embedding fluorescent hydrogels (thermoresponsive within non-responsive) as the multicolor display unit.
Main Results:
- Demonstrated a cascading "light trigger-heat generation-fluorescence output" display mechanism.
- Achieved rapid (within 5 seconds) and reversible hand-written display of arbitrary information.
- Showcased sustainable light-projecting display of multicolor patterns via multilayer design.
Conclusions:
- The developed hydrogel system offers integrated functionalities for novel rewritable displays.
- This biomimetic approach opens possibilities for advanced information display and transmission products.
- The system provides a sustainable and versatile solution for on-demand information display.
