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Updated: Jul 28, 2025

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在可见至近红外 (VNIR) 区域设计和分析基于多分析检测的生物传感器

Kawsar Ahmed, Ruhul Amin, Francis M Bui

IEEE transactions on nanobioscience

|May 31, 2023

概括

这项研究介绍了一种新型的双核光子晶纤传感器,用于同时检测多个分析物. 传感器实现了对生物和生化折射率测量的高灵敏度.

科学领域:

光子学是一个光子学.
纳米技术纳米技术
传感器技术传感器技术

背景情况:

表面等离子共振 (SPR) 传感器为检测折射率变化提供了高灵敏度.
光子晶体纤维 (PCF) 为开发先进光学传感器提供了一个多功能平台.
多分析剂检测对于复杂的生物和化学分析至关重要.

研究的目的:

引入一种基于PCF的高度灵敏的双核SPR传感器,用于同时检测多个分析物.
为了研究传感器在生物和生化折射率 (RI) 检测方面的性能.
探索可见到近红外 (VNIR) 光谱区域中的应用.

主要方法:

使用双核光子晶体纤维 (PCF) 架构.
纳入30nm金 (Au) 层,以获得等离子体特性.
使用10纳米氧化 (Al2O3) 薄膜进行校准和增强合.
使用有限元法 (FEM) 进行数值调查.

主要成果:

达到2606 RIU-1.1的峰值振幅灵敏度 (AS).
证明最大波长灵敏度 (WS) 是20,000nm/RIU.
证实了传感器在VNIR区域检测分析物的能力 (0.5到[公式:参见文本]).

结论:

拟议的双核PCF-SPR传感器表现出卓越的灵敏度和多分析器检测的潜力.
该设计适用于生物和生化RI传感应用.
传感器的性能验证了其在VNIR光谱范围中的实用性.

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