Journal Article

PUBDB-2026-02209

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Biomimetic actuator crafted from a relaxor ferroelectric polymer nanocomposite

Chi, H. ; Bai, P. ; Zhou, Z. ; Wang, G. ; Xu, W. (Corresponding author)Extern* ; Zhang, Y. ; Qin, H. ; Wang, X. ; Zhang, Y. (Corresponding author) ; Ma, R. (Corresponding author)

2026
Springer Nature [London]

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Please use a persistent id in citations: doi:10.1038/s41467-026-70165-0  doi:10.3204/PUBDB-2026-02209

Abstract: Soft actuators have garnered widespread attention due to their distributed actuation and high error tolerance. However, fabricating biomimetic actuators with small-size, simple structure, low energy consumption, and multifunctionality remains challenging. Here, we present a monolayer nanocomposite achieved by incorporating polymer dots into a polyvinylidene fluoride terpolymer. Through interfacial hydrogen bonding and temperature modulation, a gradient distribution of highly polarized regions is achieved within the nanocomposite. This yields ultrahigh electromechanical performance, with an actuation strain of 14.4% and an output mechanical energy density of 1.92 J cm−³ at 100 MV m−¹. Multifunctional soft actuators are formed from this nanocomposite, weighing only 50 mg, and can skillfully imitate both caterpillar crawling and butterfly flight, unlocking the potential for multimodal locomotion. This insect-sized bionic actuator consumes a mere 3-8 mW. The combination of simple architecture and low energy consumption may pave the way for future development of truly bionic soft robots.

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Contributing Institute(s):

1. FS DOOR-User (FS DOOR-User)

Research Program(s):

1. 632 - Materials – Quantum, Complex and Functional Materials (POF4-632) (POF4-632)

Experiment(s):

1. No specific instrument

Appears in the scientific report 2026

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