Light-Controlled Graphene-Elastin Composite Hydrogel Actuators
2013; American Chemical Society; Volume: 13; Issue: 6 Linguagem: Inglês
10.1021/nl401088b
ISSN1530-6992
AutoresEddie Wang, Malav S. Desai, Seung‐Wuk Lee,
Tópico(s)Connective tissue disorders research
ResumoHydrogels actuators (HAs) that can reversibly respond to stimuli have applications in diverse fields. However, faster response rates and improved control over actuation timing and location are required to fulfill their potential. To address these criteria, we synthesized near-infrared light-driven HAs by interfacing genetically engineered elastin-like polypeptides with reduced-graphene oxide sheets. The resulting nanocomposites exhibited rapid and tunable motions controlled by light position, intensity, and path, including finger-like flexing and crawling. This work demonstrates the ability of rationally designed proteins to be combined with synthetic nanoparticles for the creation of macroscale functional materials.
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