具有吸湿、压电运动传感和热致变色温度响应的多功能纳米纤维电子皮肤。

IF 9.7 1区 化学 Q1 CHEMISTRY, PHYSICAL
Journal of Colloid and Interface Science Pub Date : 2026-01-01 Epub Date: 2025-08-18 DOI:10.1016/j.jcis.2025.138773
Jun Zhang, Jinke Guo, Kainan Guo, Qianyue Li, Shouzhi Yan, Tingxiao Li, Binjie Xin
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引用次数: 0

摘要

电子皮肤(e-skin)由于透气性差、积汗和灵敏度有限,在实现长期信号稳定性和可穿戴性方面面临挑战。本文报道了一种由疏水性层(PVDF-TrFE/ZnO)、压电增强层(PAN/PVP/PDA@BTO)和热致变色层(PAN/PVP/TCM)组成的多层纳米纤维电子皮肤(PTZ-PPPB-PPT)。得益于非对称润湿性和分层纤维结构,该设备可以实现单向汗水传输(接触角在5.72秒内从132.8°降至0°),同时阻止反渗透(流体静力阻力为40 mmH₂O)。当压电传感器在过度出汗的条件下工作时,单向的汗液输送保持皮肤表面干燥,从而保证运动过程中稳定的压电输出。值得注意的是,E-skin实现了高输出电压(30 N时40 V,灵敏度为0.825 V/N),具有快速响应/恢复(100/80 ms)。它还具有可逆的热变色性(25-40°C),用于实时温度可视化。此外,该装置通过保持出色的透气性(8.05毫米/秒)和出色的机械灵活性(断裂伸长率187.75%),确保了长时间磨损时的卓越舒适性。这款多功能集成电子皮肤将汗液管理与温度可视化相结合,在可穿戴医疗保健、人机交互和动态环境监测方面具有广阔的应用前景。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Multifunctional nanofiber-based electronic skin with moisture-wicking, piezoelectric motion sensing and thermochromic temperature response.

Electronic skin (e-skin) faces challenges in achieving long-term signal stability and wearability due to the poor breathability, sweat accumulation, and limited sensitivity. This paper reports a multifunctional nanofibrous e-skin (PTZ-PPPB-PPT) fabricated via layer-by-layer electrospinning, integrating a hydrophobic layer (PVDF-TrFE/ZnO), a piezoelectric enhancement layer (PAN/PVP/PDA@BTO), and a thermochromic layer (PAN/PVP/TCM). Benefited from the asymmetric wettability and hierarchical fiber structure, the device enables unidirectional sweat transport (contact angle reduces from 132.8° to 0° within 5.72 s) while blocking reverse osmosis (hydrostatic resistance of 40 mmH₂O). When the piezoelectric sensor operates under excessive sweating conditions, the unidirectional sweat transport maintains skin surface dryness, thereby ensuring stable piezoelectric output during movement. Notably, the E-skin achieves a high output voltage (40 V at 30 N with a sensitivity of 0.825 V/N), exhibits rapid response/recovery (100/80 ms). It also demonstrates reversible thermochromism (25-40 °C) for real-time temperature visualization. Additionally, the device ensures superior comfort during prolonged wear by maintaining exceptional air permeability (8.05 mm/s) and outstanding mechanical flexibility (187.75 % elongation at break). This multifunctional integrated E-skin synergizes sweat management with temperature visualization, holding promising potential for applications in wearable healthcare, human-computer interaction, and dynamic environmental monitoring.

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来源期刊
CiteScore
16.10
自引率
7.10%
发文量
2568
审稿时长
2 months
期刊介绍: The Journal of Colloid and Interface Science publishes original research findings on the fundamental principles of colloid and interface science, as well as innovative applications in various fields. The criteria for publication include impact, quality, novelty, and originality. Emphasis: The journal emphasizes fundamental scientific innovation within the following categories: A.Colloidal Materials and Nanomaterials B.Soft Colloidal and Self-Assembly Systems C.Adsorption, Catalysis, and Electrochemistry D.Interfacial Processes, Capillarity, and Wetting E.Biomaterials and Nanomedicine F.Energy Conversion and Storage, and Environmental Technologies
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