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石墨烯氧化物辅助形微纤维超级传感器,用于快速检测结核菌抗原

Ren Liu^1,2, Tianhuan Song³, Xiaolin Chen³

¹Key Laboratory of Ministry of Education for Conservation and Utilization of Special Biological Resources in Western China, Ningxia University, Yinchuan, China.

Biotechnology and bioengineering

|March 11, 2025

概括

这项研究引入了一种使用石墨烯氧化物和光学微纤的快速DNA吸管传感器,用于检测Mycobacterium tuberculosis (MTB) 抗原. 创新的传感器实现了高灵敏度的早期检测在人类和牛.

科学领域:

生物医学工程生物医学工程
生物传感技术的技术
传染病诊断传染病诊断传染病诊断

背景情况:

由Mycobacterium tuberculosis (MTB) 引起的结核病 (TB) 是一个影响近20亿人的全球健康挑战.
目前的结核病诊断方法可能耗时且缺乏敏感性.
需要快速,灵敏和特定的诊断工具来检测MTB.

研究的目的:

开发和验证一种新的TB抗原Mpt64和Ag85B的实时检测系统.
为了提高检测效果,利用DNA吸收体与氧化石墨烯 (GO) 辅助的光学微纤超级传感器相结合.
评估开发的用于MTB识别的传感器的临床适用性和灵敏度.

主要方法:

用石墨烯氧化物层增强的光学微纤超级传感器的制造.
在传感器表面固定特定于MTB抗原Mpt64和Ag85B的DNA体.
使用开发的光学传感器在血清样本中实时检测目标抗原.

主要成果:

该GO层显著提高了微纤维的固定能力.
传感器在10秒内在血清样本中成功检测到Mpt64和Ag85B.
实现了超低检测极限:Mpt64的4.23 × 10−20 M和Ag85B的3.11 × 10−19 M.
证明了该系统在人类和牛两种菌株中检测MTB的能力,由于保留了抗原.

结论:

开发的光学微纤传感器系统为MTB检测提供了一个高度敏感和快速的平台.
传感器检测保存的抗原的能力使得在人类和牛群中识别MTB成为可能.
这种创新的生物传感方法有望实现小型化,并在结核病诊断中得到广泛应用.

关键词:

在Ag85B上使用.Mpt6464 在线播放这是一个光学传感器.逐渐缩小的纤维纤维结核病是一种肺结核病.

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