journal article·2025-01-14

Nanomembrane on Graphene: Delamination Dynamics and 3D Construction

Yue Wu, Xinyuan Zhang, Zhe Ma, Weida Hong, Chunyu You, Hong Zhu, Yang Zong, Yuhang Hu, Borui Xu, Gaoshan Huang, Zengfeng Di, Yongfeng Mei

ACS Nano· Volume 19· Issue 1
Publisher page

Abstract

Freestanding nanomembranes fabricated by lift-off technology have been widely utilized in microelectromechanical systems, soft electronics, and microrobotics. However, a conventional chemical etching strategy to eliminate nanomembrane adhesion often restricts material choice and compromises quality. Herein, we propose a nanomembrane-on-graphene strategy that leverages the weak van der Waals adhesion on graphene to achieve scalable and controllable release and 3D construction of nanomembranes. This fragile adhesion allows for precise delamination under stimulations, such as surface tension, thermal treatment, and mechanical bending. This strategy is compatible with various inorganic materials, including oxides, semiconductors, and metals, and allows for precise control of rolling and folding into 3D microstructures. Demonstrations include tubular microrobots with diverse locomotion and biodegradable nerve scaffolds based on facile delamination. Our nanomembrane-on-graphene strategy offers a versatile platform for the fabrication of functionalized microstructures.
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Research context

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

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

Affiliations

Department of Materials Science & International Institute of Intelligent Nanorobots and Nanosystems, State Key Laboratory of Surface Physics, Fudan University, Shanghai 200438, People’s Republic of China

Yiwu Research Institute of Fudan University, Yiwu 322000, Zhejiang, People’s Republic of China

State Key Laboratory of Materials for Integrated Circuits, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, People’s Republic of China

Shanghai Frontiers Science Research Base of Intelligent Optoelectronics and Perception, Institute of Optoelectronics, Fudan University, Shanghai 200438, People’s Republic of China

Funding

Key Technologies Research and Development Program · Science and Technology Commission of Shanghai Municipality · National Natural Science Foundation of China · Shanghai Municipality

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