Modeling of highly improved SPR sensor for formalin detection

被引:52
作者
Moznuzzaman, Md [1 ,2 ]
Islam, Md Rafiqul [1 ]
Hossain, Md Biplob [2 ]
Mehedi, Ibrahim Mustafa [3 ,4 ]
机构
[1] Khulna Univ Engn & Technol, Dept Elect & Elect Engn, Khulna, Bangladesh
[2] Jashore Univ Sci & Technol, Dept Elect & Elect Engn, Jashore, Bangladesh
[3] King Abdulaziz Univ, Elect & Comp Engn Dept ECE, Jeddah 21589, Saudi Arabia
[4] King Abdulaziz Univ, Ctr Excellence Intelligent Engn Syst CEIES, Jeddah 21589, Saudi Arabia
关键词
Surface plasmon resonance; Formalin; Sensor; Sensitivity; Quality factor; Numerical modelling; PLASMON RESONANCE BIOSENSOR; STAPHYLOCOCCAL-ENTEROTOXIN-B; SENSITIVITY ENHANCEMENT; NUMERICAL-ANALYSIS; GRAPHENE; NANOSENSOR; WS2; PERFORMANCE; DESIGN; SILVER;
D O I
10.1016/j.rinp.2019.102874
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Consumption of formalin with food is a worldwide concern and has become a serious social problem in recent years, especially in the developing societies, which are at a higher risk of danger because of the lack of satisfactory monitoring and policies. The Frequent consumption of formalin causes severe health issues that lead to critical and fatal diseases like chronic cancer. Formalin detection in food is an urgent concern, which is becoming a national issue in developing countries. In this article, a graphene-MoS2 composite 2D sheets with a TiO2-SiO2 nano-layered surface plasmon resonance (SPR) based sensor is presented for formalin detection. Analytical analysis is carried out on the performance parameters of the sensor using MATLAB commercial software. The effect of amalgamation of Graphene-MoS2 with TiO2-SiO2 layers has been studied. The sensitivity and quality factor of the sensor are found to be 98 deg. RIU-1 and 88.89 RIU-1, respectively. This sensor detects the existence of formalin by using attenuated total reflection (ATR) and evaluating the reflectance vs SPR angle and transmittance vs surface plasmon resonance frequency (SPRF) attributes. It is found that, the sensitivity of the traditional SPR based sensor is 70 degrees/RIU, on the other hand, the graphene-MoS2 based sensor improves this sensitivity to 76 degrees/RIU. Finally, a comparative performance study of the traditional SPR sensors and the proposed sensor is also presented.
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页数:8
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