一次性光纤塑传感器用于化学传感
Tao Han1, Cheng Zhang2, Hui Yu2
1College of Life Science, Qingdao University, Qingdao, Shandong, 266071, China.
Analytical biochemistry
|September 18, 2024
概括
这项研究引入了一种新的光纤等离子传感器,使用金纳米粒子来敏感检测离子和大肠杆菌. 具有成本效益和一次性设计,可实现实际的护理点测试应用.
科学领域:
- 纳米技术纳米技术
- 生物医学工程 生物医学工程
- 分析化学 分析化学
背景情况:
- 传统的传感器是庞大而复杂的.
- 高灵敏度等离子体传感器需要复杂的纳米结构制造.
- 需要具有成本效益和用户友好的传感平台.
研究的目的:
- 开发一种简单,经济高效的光纤等离子传感器.
- 为了证明其在检测重金属和细菌方面的应用.
- 为了实现实际的医疗点测试.
主要方法:
- 在光纤上利用化学吸收的金纳米粒子.
- 功能化纳米粒子与特定结合的aptamer/抗体.
- 采用了两个检测模式:共振波长转移和吸收峰值振幅测量.
主要成果:
- 检测到的离子 (Pb2+) 的检测极限为0.097 nM.
- 在尿路感染样本中检测到大肠杆菌,其动态范围为10^3到10^8 CFU/mL.
- 在两个检测模式中都表现出高的线性和灵敏度.
结论:
- 开发的传感器提供了高灵敏度和简单的制造.
- 可更换配置提高了可用性,降低了成本.
- 这种方法有可能用于使用光纤等离子体传感器的临床诊断.
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