DataVXACS NanoPaper
journal article·2025-09-23

Bimorph Soft Actuators Based on Isostructural Heterogeneous Janus Films

Jiahui Li, Baoxiu Wang, Feiyang Jiang, Weidong Song, Xin Hu, Zirui Wang, Shaoqiang Chen, Tao Lan, Haiqi Gao, Zhangfan Huang, Shiyu Zhao, Xiao Xiao, Wei Zhang, Chang Liu, Qiuwei Shi, Yannan Xie, Wei Huang

ACS Nano· Volume 19· Issue 37
Publisher page
Source abstract

Abstract

Bimorph soft actuators, traditionally composed of two materials with distinct responses to external stimuli, often face durability challenges due to structural incompatibility. Here, we propose an alternative design employing free-standing, isostructural heterogeneous Janus (IHJ) films that harmonize stability with high actuation efficiency. These IHJ films were fabricated through a vacuum self-assembly process, consisting of Ti 3 C 2 T x MXene nanosheets and hybrid graphene oxide (GO)-biomass bacterial cellulose (BC), with a well-matched two-dimensional lattice structure. The special structure of the film, featuring continuous laminar layers and one-dimensional (1D) BC nanofibers intertwining with two-dimensional (2D) GO and MXene nanosheets, promotes interlayer slip during deformation, enhancing stability and deformability. The IHJ film responds swiftly to electrical stimuli, humidity, and light, causing layer expansion or contraction through the rapid absorption and release of water molecules and enabling controllable actuation. The IHJ film can be utilized as actuators in various soft robotic applications, such as a “flower robot” under electrical stimulus, a “passive switch” under humidity, and a “worm robot” under infrared lamp exposure. The design of the IHJ film achieves large-scale deformation, low power consumption, high responsiveness, and enhanced real-time sensing capabilities, representing an important development in soft actuator design.
Source: openalex_inverted_index · Quality: baseline

Research context

Nanomaterials

OpenAlex topics: Advanced Materials and Mechanics · Micro and Nano Robotics · Advanced Sensor and Energy Harvesting Materials

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

State Key Laboratory of Flexible Electronics (LoFE) & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, China

School of Chemistry and Chemical Engineering

Shanghai University of Engineering Science

State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry

Xinjiang University

Institute for Health Innovation and Technology

National University of Singapore

College of Chemistry and Materials Science

Nanjing University of Information Science & Technology

Frontiers Science Center for Flexible Electronics (FSCFE), MIIT Key Laboratory of Flexible Electronics (KLoFE)

Northwestern Polytechnical University

Funding

Jiangsu Provincial Key Research and Development Program · National Key Research and Development Program of China · China Postdoctoral Science Foundation · Natural Science Foundation of Jiangsu Province · National Natural Science Foundation of China · Priority Academic Program Development of Jiangsu Higher Education Institutions · Research Foundation for Advanced Teachers of Nanjing University of Post and Telecommunications · State Key Laboratory of Organic Electronics and Information Displays

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