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Volume 599 Issue 7884, 11 November 2021
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Volume 599 Issue 7884, 11 November 2021

Getting a grip

Soft robots have garnered significant attention in recent years, thanks to their ability to carry out a range of complex tasks such as gripping, crawling or swimming. But making these soft actuators remains a relatively tedious task. In this week’s issue, P.-T. Brun and his colleagues report a bubble-based method for making a variety of actuators based on elastic polymers. Liquid elastomer is first injected into a mould followed by air. This forms an elongated bubble that rises by gravity and sculpts the internal void of the actuator. By varying the template and flow process, various complex architectures are possible, such as artificial muscles and grippers (pictured on the cover).

Cover image: Trevor Jones, Etienne Jambon-Puillet & PT Brun

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