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Gel-based soft actuators driven by light
- Mauro, Matteo
- Journal of materials chemistry B 2019 v.7 no.27 pp. 4234-4242
- actuators, drug delivery systems, energy, gels, muscles, robots, synthetic products
- Movement is essential for living organisms. Biological motors enable activities necessary for life by conversion of chemical energy. Controlling stimuli-induced molecular motion and mastering its amplification from the molecular to the macroscopic scale enables the preparation of synthetic materials that display motile response and life-like actions such as bending, twisting and expansion–contraction movements. Light represents a valuable stimulus that can be remotely applied with high spatiotemporal control. Herein, photoresponsive gels that perform light-driven actuation are highlighted. Although some limitations still need to be overcome, these fascinating materials may find potential applications in remotely-guided bio-medical devices, artificial muscles, smart drug delivery systems, microfluidic elements, micromanipulators and biologically-inspired soft robotics.