基于仿皮肤生物凝胶的离子电子传感器，具有层级仿生耦合结构，用于灵巧触觉电子皮肤
Skin-mimicking biogel-based iontronic sensor with hierarchical bionic coupling for dexterous tactile e-skin.
摘要(中文译文)
人类指尖皮肤具有相互交错的上皮-真皮结构以及密集的触觉感受器，从而赋予其独特的感知能力，并为创新电子皮肤（e-skin）的设计提供了灵感。然而，大多数电子皮肤材料未能复制天然皮肤中组成、结构和功能的分级整合。受真皮细胞外基质——一种由胶原-透明质酸增强的复合水凝胶——的直接启发，我们在此报道了一种模拟人类皮肤关键组成和结构特征的电子皮肤。通过将乳酸钠和蒙脱石纳米片引入明胶基质中，我们利用动态离子交联和氢键网络设计出一种仿生凝胶，其力学和水合特性与天然皮肤相似。采用砂纸模板化策略设计了类似真皮乳头的微结构。所得离子电子传感器实现了高灵敏度（466.3 kPa）、快速响应（47 ms）以及宽压力检测范围（20 Pa-2000 kPa）。我们进一步开发了一种可拉伸、超薄的手形离子电子传感器阵列，其与灵巧机械手无缝集成，实现了精确、无损抓取以及高保真、多通道压力映射。
Abstract
The human fingertip skin, with its interlocked epidermal-dermal architecture and dense tactile receptors, enables unique perception and inspires the design of innovative electronic skin (e-skin). However, most e-skin materials fail to replicate the hierarchical integration of composition, structure, and function found in natural skin. Drawing direct inspiration from the dermal extracellular matrix-a composite hydrogel reinforced by a collagen-hyaluronic acid, here we report an e-skin that mimics key composition and architectural features of human skin. By incorporating sodium lactate and montmorillonite nanosheets into a gelatin matrix, we engineer a biomimic gel with mechanical and hydration properties similar to those of natural skin through dynamic ionic crosslinking and hydrogen bond networks. The microstructure resembling the dermal papillae is designed using a sandpaper-templating strategy. The resulting iontronic sensor achieves high sensitivity (466.3 kPa), rapid response (47 ms), and a wide pressure detection range (20 Pa-2000 kPa). We further develop a stretchable, ultrathin, hand-shaped iontronic sensor array that integrates seamlessly with a dexterous robotic hand, achieving precise, nondestructive grasping and high-fidelity, multichannel pressure mapping.
如何引用
AMA
Yidan Chen, Shu Wang, Xilu Ye, Chenghui Lv, Jialin Wei, Yingxin Zhang, et al. Skin-mimicking biogel-based iontronic sensor with hierarchical bionic coupling for dexterous tactile e-skin.. Nature communications. 2026; doi:10.1038/s41467-026-73736-3.
APA
Yidan Chen, Shu Wang, Xilu Ye, Chenghui Lv, Jialin Wei, Yingxin Zhang, et al (2026). Skin-mimicking biogel-based iontronic sensor with hierarchical bionic coupling for dexterous tactile e-skin.. Nature communications. https://doi.org/10.1038/s41467-026-73736-3
GB/T 7714
Yidan Chen, Shu Wang, Xilu Ye, Chenghui Lv, Jialin Wei, Yingxin Zhang, et al. Skin-mimicking biogel-based iontronic sensor with hierarchical bionic coupling for dexterous tactile e-skin.[J]. Nature communications, 2026 doi:10.1038/s41467-026-73736-3.
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