扩大动态检测范围的实时角质询表面等离子体共振生物传感器基于无otropic 范德瓦尔斯异质连接的异质连接
Xiantong Yu1, Jing Ouyang1, Zhao Li1
1Key Laboratory of Optical Technology and Instrument for Medicine, Ministry of Education, College of Optical-Electrical and Computer Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China.
Biosensors
|December 27, 2024
概括
这项研究引入了使用黑/石墨烯异构结构的增强角度探测表面等离子体共振 (SPR) 生物传感器. 这种新的设计显著提高了生物检测应用的检测灵敏度和动态范围.
科学领域:
- 纳米材料科学 科学 纳米材料科学
- 生物传感技术的技术
- 光电学是指光电子产品.
背景情况:
- 表面等离子体共振 (SPR) 生物传感器对于生物检测至关重要,提供可靠的结果和稳定性.
- 角度探测SPR生物传感器在灵敏度,实时性能和动态范围方面存在局限性,这阻碍了它们的广泛应用.
- 现有的SPR生物传感器设计需要改进,以满足先进生物检测的需求.
研究的目的:
- 设计和研究一种具有增强性能的新型角度探测SPR生物传感器.
- 为了利用黑 (BP) /石墨烯二维 (2D) 范德瓦尔斯异质连接 (vdWhs) 来提高生物感知能力.
- 解决传统SPR生物传感器中低灵敏度和狭窄动态范围的局限性.
主要方法:
- 设计了一个采访角度的SPR生物传感器,使用黑色 (BP) /石墨烯2D范德瓦尔斯异质连接 (vdWhs).
- 采用固定角度方法,以实现良好的实时性能和提高检测灵敏度.
- 利用BP的光学异构性来扩大生物传感器的动态检测范围.
主要成果:
- 拟议的BP/石墨烯SPR生物传感器实现了258.6度/RIU的最大检测灵敏度,比赤裸的Ag薄膜提高了209.2%.
- 生物传感器在固定入射角度 (θ = 5度) 上显示出最大动态检测范围增强因子为123.1%.
- 在增强的动态范围内实现了185.2度/RIU的检测灵敏度,表现出更好的性能.
结论:
- 开发的BP/石墨烯SPR生物传感器有效地提高了检测灵敏度,并扩大了动态范围.
- 像BP这样的异构二维材料的整合为推进SPR生物传感器技术提供了一个有前途的战略.
- 这种新的生物传感器设计具有在生物检测和相关领域广泛应用的巨大潜力.
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