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.

中文翻译：

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纳米摩擦力增强多孔纳米线支架

摘要

具有与生物组织相似的动态机械响应行为的人造生物材料引起了极大的关注。在这项研究中，我们报道了一种基于TiO ₂的纳米线（TiO ₂ NWs）支架，其表现出随纳米变形循环的数量和幅度变化的动态机械响应行为。研究发现，多次纳米变形循环后， TiO _{2纳米线支架的弹性力和粘附力显着增加。进一步的纳米摩擦实验表明，在 TiO 2} NWs 支架的纳米变形循环过程中，弹性和粘附力增加的摩擦起电效应。这些特性使得TiO ₂ NW支架能够被设计和应用为智能人工生物材料，以在未来模拟生物组织。