ArticleScience advances2024
An optoionic hydrogel with UV-regulated ion conductivity for reprogrammable iontronics: Logic processing and image sensing.
Article in Science advances, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- Anti-Freezing Fiber-Shaped Iontronic Synapses With Ultralow Energy Consumption and High Rectification.Advanced materials (Deerfield Beach, Fla.) · 2026Article
- Hydrogel Electrochemistry as a Structured Interfacial Platform: From Early Concepts to Emerging Applications.ACS omega · 2026Review
- Photoactive Hydrogels Containing Merocyanine/Spiropyran Units for Wound Dressing Applications.Biomacromolecules · 2026Article
- From Light to Life: Molecular Mechanisms and Macroscopic Transformations in Photoresponsive Hydrogels.Polymer science & technology (Washington, D.C.) · 2025Review
- Gel-Based Ionic Circuits.Chemical reviews · 2025Review
- Autonomous codesign and fabrication of multistimuli-responsive material systems.Science advances · 2025Article
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The development of smart hydrogels capable of actively controlling ion conductivity is of paramount importance for iontronics. Most current work in this field focuses on enhancing the hydrogels' ion conductivity. Few successes have been seen in achieving spatial regulation of ion flow through external control. Among various controls, light gives the best spatial and temporal resolution for practical iontronic applications. However, developing hydrogels that can generate drastic ion concentration change upon photoirradiation for tunable conductivity is challenging. Very few molecules can enable photoion generation, and most of them are hydrophobic and low quantum yield. Here, we present an optoionic hydrogel that uses triphenylmethane leuconitrile (TPMLN) for ultraviolet-regulated ion conductivity. Through postpolymerization TPMLN synthesizing, we can incorporate high concentration of the hydrophobic TPMLN in hydrogels without compromising the hydrogel's mechanical integrity. Upon light irradiation, the hydrogel's local conductivity can change an unprecedented 10-fold. We also demonstrated soft optoionic devices that are capable of logic processing and photo imaging.
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Registered trials
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