Artificial muscles powered by glucose

Date

2019-06-19

Supervisor/s

Journal Title

Journal ISSN

Volume Title

Publisher

Wiley

Department

Type

Article

ISSN

0935-9648

Format

Free to read from

Citation

Mazar FM, Martinez JG, Tyagi M, et al., (2019) Artificial muscles powered by glucose. Advanced Materials, Volume 31, Issue 32, 2019, Article number 1901677

Abstract

Untethered actuation is important for robotic devices to achieve autonomous motion, which is typically enabled by using batteries. Using enzymes to provide the required electrical charge is particularly interesting as it will enable direct harvesting of fuel components from a surrounding fluid. Here, a soft artificial muscle is presented, which uses the biofuel glucose in the presence of oxygen. Glucose oxidase and laccase enzymes integrated in the actuator catalytically convert glucose and oxygen into electrical power that in turn is converted into movement by the electroactive polymer polypyrrole causing the actuator to bend. The integrated bioelectrode pair shows a maximum open‐circuit voltage of 0.70 ± 0.04 V at room temperature and a maximum power density of 0.27 µW cm−2 at 0.50 V, sufficient to drive an external polypyrrole‐based trilayer artificial muscle. Next, the enzymes are fully integrated into the artificial muscle, resulting in an autonomously powered actuator that can bend reversibly in both directions driven by glucose and O2 only. This autonomously powered artificial muscle can be of great interest for soft (micro‐)robotics and implantable or ingestible medical devices manoeuvring throughout the body, for devices in regenerative medicine, wearables, and environmental monitoring devices operating autonomously in aqueous environments

Description

Software Description

Software Language

Github

Keywords

polypyrrole, laccase, glucose oxidase, electroactive polymers, artificial muscles

DOI

Rights

Attribution-NonCommercial 4.0 International

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