基于金属@MOF粒子在腔模型的可穿戴SERS现场传感器:适用于检测人类不同生物流体中的多种生物标志物
Hao Li1, Chongfeng Cao2, Fengcai Lei3
1Shandong Provincial Engineering and Technical Center of Light Manipulation, School of Physics and Optoelectronics, Shandong Normal University, Jinan, Shandong 250014, P. R. China.
ACS sensors
|January 27, 2026
概括
一种新的金属@MOF粒子在腔 (MMPIC) 模型增强了可穿戴传感器,用于非侵入性生物流体分析. 这一突破提高了检测汗水和呼吸中的生物标志物的灵敏度和稳定性.
科学领域:
- 纳米技术纳米技术
- 材料科学 材料科学 材料科学
- 生物医学工程 生物医学工程
背景情况:
- 可穿戴生物传感器利用生物流体进行非侵入性监测.
- 传统的现场表面增强拉曼散射 (IS-SERS) 传感器由于热点范围有限和生物流体复杂性而面临局限性.
- 在热点内有效的分析物捕获对于传感器性能至关重要.
研究的目的:
- 为增强IS-SERS传感引入一种新的金属@MOF内腔颗粒 (MMPIC) 检测模型.
- 通过扩大和集中热点来克服传统IS-SERS的局限性.
- 为了提高分析物的封闭性,丰富性和对生物流体干扰的抵抗性.
主要方法:
- 开发了MMPIC架构,将形纳米腔与纳米孔状金属@MOF粒子集成在一起.
- 使用级联电场增强用于扩大热点.
- 结合分子选和分级折射率特性,以抵抗干扰.
- 制造微流体贴和智能面具作为概念验证设备.
主要成果:
- MMPIC模型成功地增强了电场,并集中了MOF介电体内的热点.
- 在MOF矩阵内实现了分析物的限制和丰富,并与热点进行同位化.
- 证明了对生物流体干扰的高灵敏度和强度.
- 能够精确量化生物标志物 (pH,葡萄糖,氨,4-乙烯甲) 在人类汗水和呼气中的1ppb.
结论:
- MMPIC模型为可穿戴IS-SERS检测提供了一个通用和有效的平台.
- 开发的可穿戴设备显示出在健康监测中的真实应用的巨大潜力.
- 这项工作为未来可穿戴现场传感技术的进步提供了基础.
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