一种用于水性检测的GaAs二维光子晶体生物传感器

IF 0.7 4区物理与天体物理 Q4 OPTICS

Journal of Russian Laser Research Pub Date : 2025-02-12 DOI:10.1007/s10946-024-10234-1

Abdelaziz Ould Bahammou, Monia Najjar

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引用次数: 0

摘要

监测饮用水和食物中的水传播和食源性细菌正成为一个主要问题，因为这些细菌有可能导致疾病和危害人类健康。本文设计了一种新型二维光子晶体生物传感器，用于检测霍乱弧菌、大肠杆菌、福氏志贺氏菌和沙门氏菌等水生细菌。我们的传感器是由砷化镓光子晶体板上的空气孔组成的，利用平面波展开（PWE）和时域有限差分（FDTD）方法来开发和分析生物传感器。所提出的生物传感器具有高q因子9227.9，灵敏度226.97，高品质因数（FOM） 2269.7 RIU−1，检测限4.405 · 10-4 RIU，最小检测尺寸23.28 µm2。该装置可以增强生物装置的能力，用于水传播和食源性细菌检测。

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A GaAs 2D photonic crystal biosensor for waterborne detection

Monitoring waterborne and foodborne bacteria in drinking water and food is becoming a primary issue due to these bacteria having the potential to cause illness and harm human health. In this article, we design a new two-dimension (2D) photonic crystal biosensors for detecting waterborne bacteria, such as Vibrio cholerae, Escherichia coli (E. coli), Shigella flexneri and Salmonella. Our sensor is composed of air holes in a Gallium arsenide photonic crystal slab, using the plane wave expansion (PWE) and the finite difference time domain (FDTD) methods to develop and analysis the biosensor. The proposed biosensor has a high Q-factor of 9227.9, a sensitivity of 226.97, a high figure of merit (FOM) of 2269.7 RIU⁻¹, a detection limit of 4.405 · 10^-4 RIU, a smallest size of 23.28 µm² for detection. The device can augment the capabilities of biological devices for waterborne and foodborne bacteria detection.

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来源期刊

Journal of Russian Laser Research 物理-光学

CiteScore

1.50

自引率

22.20%

发文量

审稿时长

2 months

期刊介绍： The journal publishes original, high-quality articles that follow new developments in all areas of laser research, including: laser physics; laser interaction with matter; properties of laser beams; laser thermonuclear fusion; laser chemistry; quantum and nonlinear optics; optoelectronics; solid state, gas, liquid, chemical, and semiconductor lasers.