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Nano-Micro Letters · 2025 ·Vol. 18 ·期 1 ·42 · IF 36.3

Superelastic and Washable Micro/Nanofibrous Sponges Based on Biomimetic Helical Fibers for Efficient Thermal Insulation

Yang Fengjin,Wang Zhifei,Zhang Wei,Wang Sai,Liu Yi-Tao,Wang Fei,Surmenev Roman A.,Yu Jianyong,Zhang Shichao,Ding Bin

A superelastic and washable sponge based on biomimetic spring-like helical micro/nanofibers is directly fabricated by multiple-jet electrospinning technology. The resulting sponge exhibits both lightweight (low density of 7.1 mg cm –3 ) and robust mechanical property (large tensile strain up to 200%). The sponge also shows efficient thermal insulation performance with low thermal conductivity (24.85 mW m –1 K –1 ), and remains structural stability even after cyclic washing, making it a promising candidate for personal protection in cold environments.

CAS / MDL: 7447-41-8

研究领域: 材料科学 · 生物医学工程 · 纳米技术 · 组织工程 · 高分子科学

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Device · 2024 · IF 0

Washable textile biosensors enabled by nanostructured oxides with fast ion diffusion

Yuqing Shi,Kemeng Zhou,Xiaohao Ma,Liting Huang,Xinmeng Hu,Pengwei Wang,Yaokang Zhang,Fan Chen,Mingli Huang,Jiazhen Wu,Xin He,Qiyao Huang,Zijian Zheng,Yuanjing Lin

Textile-based electronics possess comfortable epidermal contact and the potential for wearable healthcare applications such as non-invasive sweat biosensing. However, achieving washable biosensors without sacrificing sensitivity and wearing comfort remains a challenge. Herein, we develop β-Bi 2 O 3 nanoflakes, which enable washable textile-based biosensors. The β-Bi 2 O 3 nanoflakes with fast ion conductivity possess high moisture stability without introducing large impedance. The incorporation of β-Bi 2 O 3 nanoflakes improved the sensitivity and washability of textile ionic sensors for sodium, potassium, and proton sensing, with a performance retention of over 90% after 20 washing cycles. As a demonstration, we created a washable and reusable integrated electronic textile wristband for wireless sweat biomarker analysis. This work showcases the use of nanostructured oxides as a washing-resistive layer and a fast ion conductor to confer washability on textile-based sensing devices.

研究领域: 生物医学工程 · 纳米材料 · 可穿戴设备 · 电化学传感

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Superelastic and Washable Micro/Nanofibrous Sponges Based on Biomimetic Helical Fibers for Efficient Thermal Insulation

Washable textile biosensors enabled by nanostructured oxides with fast ion diffusion