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一个快速的电化学免疫传感器平台,用于与败血症相关的宿主和病原体标记物双重检测

Manleen Kaur¹, Neetu Singh^1,2

¹Centre for Biomedical Engineering, Indian Institute of Technology, Delhi, New Delhi 110016, India.

Langmuir : the ACS journal of surfaces and colloids

|September 8, 2025

概括

这项研究引入了使用电化学免疫传感器进行败血症诊断的快速照顾点设备. 它可以在10分钟内检测到关键生物标志物,从而能够更快地治疗这种危及生命的感染.

科学领域:

生物医学工程生物医学工程
临床诊断临床诊断临床诊断
纳米技术纳米技术

背景情况:

败血症是一种危及生命的疾病,需要及时诊断.
目前的败血症诊断方法耗时,延迟了关键治疗.
现有的方法涉及多个生物标志物测试,增加诊断延迟.

研究的目的:

开发一个快速的治疗点 (POC) 设备来诊断败血症.
使用电化学免疫传感器同时检测败血症生物标志物.
提高目前败血症诊断技术的速度和灵敏度.

主要方法:

开发了一个使用3D微凝与碳点纳米探针进行电化学检测的平台.
使用电化学免疫传感器用于双重检测宿主 (PCT,IL-6,CRP) 和病原体 (LPS) 标记物.
使用循环电压测量 (CV) 和方波电压测量 (SWV) 进行传感器表征和性能评估.

主要成果:

实现了10分钟的快速检测时间,明显快于ELISA (4-5小时).
经证明的高灵敏度与较低的检测极限 (LOD):3.4 pg/mL (IL-6),4.36 pg/mL (PCT),5.9 pg/mL (CRP).
与标准ELISA测试相比,开发的传感器显示出更好的灵敏度.

结论:

这种新型的POC设备提供了准确和及时的败血症诊断.
这个平台有可能通过早期检测和治疗来彻底改变败血症的管理.
快速检测能力可以改善患者的治疗结果,并可能挽救生命.

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