High-Performance Nanocellulose-Based Ionic Electroactive Soft Actuators

IF 4.6 Q2 MATERIALS SCIENCE, BIOMATERIALS

ACS Applied Bio Materials Pub Date : 2024-05-24 DOI:10.3390/act13060200

Yujiao Wu, Qiyuan Cui, Fan Wang

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引用次数: 0

Abstract

High-performance electroactive polymer actuators with large bending, fast response, and high durability have gained attention in the development of micromanipulators and multifunctional bionic soft robots. Herein, we developed high-performance electroactive soft actuators fabricated with ultrathin free-standing microfibrillated cellulose (MFC)-reinforced poly(3,4-ethylenedioxythiophene)/poly(4-styrenesulfonate) (PEDOT/PSS) with multi-walled carbon nanotube (MWCNT)-doped composite electrode films and ion-exchange Nafion membranes by a hot-pressing method. The prepared PEDOT/PSS-MFC-MWCNT electrodes have good film-forming properties with a Young’s modulus of 448 MPa and an electrical conductivity of 75 S/cm. The proposed PEDOT/PSS-MFC-MWCNT/Nafion soft actuators have a sustained peak displacement of 2.1 mm and a long-term cyclic stability of 94% with no degradation over 1 h at 1.0 V, 0.1 Hz. Furthermore, we fabricated soft micro-grippers based on the actuators for mimicking actual finger actions for grasping, pointing, and counting, which introduces new possibilities for the next-generation development of micromanipulators and bionic soft robotics.

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基于高性能纳米纤维素的离子电活性软执行器

在开发微机械手和多功能仿生软机器人的过程中，具有大弯曲、快速响应和高耐用性的高性能电活性聚合物致动器备受关注。在此，我们通过热压方法，用超薄自由微纤维素（MFC）增强聚（3,4-亚乙二氧基噻吩）/聚（4-苯乙烯磺酸）（PEDOT/PSS）与多壁碳纳米管（MWCNT）掺杂的复合电极薄膜和离子交换纳菲昂膜，开发了高性能电活性软致动器。制备的 PEDOT/PSS-MFC-MWCNT 电极具有良好的成膜性能，杨氏模量为 448 兆帕，电导率为 75 S/cm。所提出的 PEDOT/PSS-MFC-MWCNT/Nafion 软致动器的持续峰值位移为 2.1 mm，在 1.0 V、0.1 Hz 的条件下，长期循环稳定性达 94%，1 h 内无衰减。此外，我们还在致动器的基础上制作了软微型抓手，用于模仿手指的实际抓取、指向和计数动作，这为下一代微机械手和仿生软机器人的开发带来了新的可能性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

ACS Applied Bio Materials Chemistry-Chemistry (all)

CiteScore

9.40

自引率

2.10%

发文量

464

期刊介绍： ACS Applied Bio Materials is an interdisciplinary journal publishing original research covering all aspects of biomaterials and biointerfaces including and beyond the traditional biosensing, biomedical and therapeutic applications. The journal is devoted to reports of new and original experimental and theoretical research of an applied nature that integrates knowledge in the areas of materials, engineering, physics, bioscience, and chemistry into important bio applications. The journal is specifically interested in work that addresses the relationship between structure and function and assesses the stability and degradation of materials under relevant environmental and biological conditions.