# Anisotropic Bi-Layer Hydrogel Actuator with pH-Responsive Color-Changing and Photothermal-Responsive Shape-Changing Bi-Functional Synergy

> Research article (Gels, 2023) · cited 13× · AI/ML

**Wikidata**: [openalex:W4378377417](https://www.wikidata.org/wiki/openalex:W4378377417)  
**Source**: https://4ort.xyz/entity/anisotropic-bi-layer-hydrogel-actuator-with-ph-responsive-color-changing-and-photothermal-responsive-shape-changing-bi-f