DataVXAdvanced Functional MaterialsPaper
journal article·2021-12

Shape‐Engineerable Silk Fibroin Papers for Ideal Substrate Alternatives of Plastic Electronics

Haitao Liu, Wei Wei, Lei Zhang, Jianliang Xiao, Jing Pan, Qin Wu, Shuqi Ma, Hao Dong, Longteng Yu, Wenzhen Yang, Dacheng Wei, Hongwei Ouyang, Yunqi Liu

Advanced Functional Materials· Volume 31· Issue 52
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Source abstract

Abstract

Abstract Plastic‐based electronics fill the gaps in conventional rigid silicon‐based devices toward the applications in soft interfaces. However, people in the future should also consider their potential environmental impact if tons of non‐degradable plastics are applied. Silk fibroin is a superior substrate alternative for the development of “green” electronics; whereas, the brittleness of silk films is still a major limitation impeding their practical use. Different from the widely reported polyphasic composite approaches, here a trace‐ion‐assisted plasticization strategy is developed, and shape‐engineerable pure silk fibroin paper (PSFP) is prepared for the first time, which can be engraved and crumpled like a sheet of paper in the dry state. The PSFPs exhibit higher tensile fracture energy (14.4 ± 4 kJ m−2) than any typical plastic‐electronic‐substrates as far as it is known. The intrinsic brittleness of pure silk films is overcome, and the PSFP can be easily engineered to form periodic meshes, electronic prototypes, and kirigami‐based devices, which are beyond the reported regenerated silk films or silk composite films. Moreover, the scrape coating method employed here is simple, highly repeatable, and suitable for scaled production of low‐cost PSFP continuously. Collectively, the PSFP is generalizable to various shapes and devices, represents an ideal substrate alternative to plastic electronics.
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Research context

Composites

OpenAlex topics: Silk-based biomaterials and applications · Advanced Sensor and Energy Harvesting Materials · Conducting polymers and applications

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

Affiliations

Research Center for Intelligent Sensing Zhejiang Lab Hangzhou 311100 China

State Key Laboratory of Molecular Engineering of Polymer Department of Macromolecular Science Fudan University Shanghai 200433 China

Institute of Molecular Materials and Devices Department of Material Science Fudan University Shanghai 200433 China

Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cells and Regenerative Medicine Second Affiliated Hospital Zhejiang University School of Medicine Hangzhou 310009 China

Zhejiang University‐University of Edinburgh Institute Zhejiang University Hangzhou 314400 China

Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province Zhejiang University School of Medicine Hangzhou 310058 China

International Institutes of Medicine The Fourth Affiliated Hospital Zhejiang University School of Medicine Yiwu 322000 China

State Key Lab of Modern Optical Instrumentation College of Optical Science and Engineering Zhejiang University Hangzhou 310027 China

Department of Sports Medicine Zhejiang University School of Medicine Hangzhou 310058 China

China Orthopedic Regenerative Medicine Group (CORMed) Hangzhou 310000 China

Funding

China Postdoctoral Science Foundation · National Natural Science Foundation of China

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