Abstract
Artificial biomaterials with dynamic mechano-responsive behaviors similar to those of biological tissues have been drawing great attention. In this study, we report a TiO2-based nanowire (TiO2NWs) scaffolds, which exhibit dynamic mechano-responsive behaviors varying with the number and amplitude of nano-deformation cycles. It is found that the elastic and adhesive forces in the TiO2NWs scaffolds can increase significantly after multiple cycles of nano-deformation. Further nanofriction experiments show the triboelectric effect of increasing elastic and adhesive forces during the nano-deformation cycles of TiO2NWs scaffolds. These properties allow the TiO2NW scaffolds to be designed and applied as intelligent artificial biomaterials to simulate biological tissues in the future.
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Acknowledgements
This study was supported by the National Natural Science Foundation of China (No. 52205198), the Ningbo Natural Science Foundation (No. 202003N4091), Ministry of Education of Key Laboratory of Impact and Safety Engineering at Ningbo University (No. CJ202108). The authors thank Rongqi **a from Shiyanjia Lab (www.Shiyanjia.com) for their assistance with the TEM analysis.
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The authors have no competing interest to declare that are relevant to the content of this article. The author Wanlin GUO is the Editorial Board Member of this journal.
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Licheng HUA. He received his Ph.D. degree in mechanical engineering from the Southwest Jiaotong University, China in 2016. His currently position is an associate professor in Ningbo University, China. His researches focus on bio-tribology, intelligent nanomaterials and devices, surface engineering and structural optimization, nanoscale physical mechanics, and bionics design.
Conghu HU. He received his M.E. degree in mechanical engineering from the Ningbo University, China in 2023. His currently position is a clerk in Market Supervision Administration Business Administration Office in Jurong, Jiangsu, China. His researches focus on intelligent nanomaterials and devices, and surface engineering and structural optimization.
Wanlin GUO. He received his Ph.D. degree in solid mechanics from the Northwestern Polytechnical University, China. He is currently a full-time professor and director in the Institute of Nanoscience, MOE Key Laboratory for Intelligent Nano Materials and Devices, and is a deputy director of the State Key Laboratory of Mechanics and Control of Mechanical Structures in Nan**g University of Aeronautics and Astronautics, China. His researches focus on nanoscale physical mechanics, intelligent nanomaterials and devices, highly efficient energy transfer nanotechnology, three-dimensional fatigue fracture, and damage tolerance and durability design of structures.
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Hua, L., Hu, C., Zhang, J. et al. Nano-frictional mechano-reinforcing porous nanowires scaffolds. Friction 12, 968–980 (2024). https://doi.org/10.1007/s40544-023-0815-x
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DOI: https://doi.org/10.1007/s40544-023-0815-x