铁离子配位增强的聚乙烯醇-羧甲基纤维素钠多网络水凝胶及其在柔性传感与心电监测中的应用OA
Fe3+coordination-enhanced polyvinyl alcohol-sodium carboxymethyl cellulose multi-network hydrogel for flexible sensing and electrocardiogram monitoring
为实现聚乙烯醇(PVA)水凝胶力学和电学性能的协同优化作用,本研究以PVA和羧甲基纤维素钠(CMC)为亲水基质,结合Fe3+离子构建多重交联网络,通过离子络合法成功制备了PVA-CMC/Fe3+多网络水凝胶.系统表征表明,Fe3+不仅能作为交联剂增强水凝胶的力学性能,还能显著提升其导电性.测试结果表明,PVA-CMC-0.2Fe3+的拉伸强度达 112.66 kPa,电导率为 3.03 S/m.该水凝胶具有高灵敏度与稳定性,可被组装为柔性传感器用于监测人体关节运动及心电(ECG)信号.
In order to achieve the synergistic optimization of the mechanical properties and electrical conductivity of polyvinyl alco-hol(PVA)hydrogels,we used PVA and sodium carboxymethyl cellulose(CMC)as hydrophilic matrices and combined with Fe3+ions to construct a multiple cross-linked network.Through ion complexing method,the PVA-CMC/Fe3+multi-network hydrogel was pre-pared.Systematic characterization confirmed that Fe3+could not only enhance the mechanical strength,as a cross-linker but also signifi-cantly improve the electrical conductivity.The test results showed that the optimized PVA-CMC-0.2Fe3+hydrogel exhibited a tensile strength of 112.66 kPa and an electrical conductivity of 3.03 S/m.This hydrogel has high sensitivity and stability,can be assembled as flexible sensors for monitoring human joint movements and electrocardiogram(ECG)signals.
赵相磊;吴玥;李欣怡;郭鑫;姜绪宝;顾相伶
济南大学 化学化工学院,济南 250022||德州学院 健康医学院,德州 253023德州学院 健康医学院,德州 253023济南大学 化学化工学院,济南 250022||德州学院 健康医学院,德州 253023德州学院 健康医学院,德州 253023济南大学 化学化工学院,济南 250022济南大学 化学化工学院,济南 250022||德州学院 健康医学院,德州 253023
医药卫生
水凝胶离子络合柔性传感器健康监测心电监测
HydrogelIonic coordinationFlexible sensorHealth monitoringElectrocardiogram monitoring
《生物医学工程研究》 2026 (1)
28-35,8
国家自然科学基金项目(22375028).
评论