Sensitivity enhancement of a graphene, zinc sulfide-based surface plasmon resonance biosensor with an Ag metal configuration in the visible region

Karki, Bhishma; Uniyal, Arun; Chauhan, Brajlata; Pal, Amrindra

doi:10.1007/s10825-022-01854-4

Cited by 64 publications

(10 citation statements)

References 36 publications

(40 reference statements)

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“…The refractive index of these materials at the 633 nm wavelength is presented in Table 1. The value of the FoM [31][32][33] can be calculated by…”

Section: Proposed Sensor Designmentioning

confidence: 99%

A Theoretical Study to Estimate Milk Adulteration Using Surface Plasmon Technique

Prathap¹,

S²

2022

Preprint

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In the proposed work, a biosensor has been proposed to detect adulteration in milk. The rapid detection of adulteration such as Urea, Melamine, and Salmonella is a major concern for the food industry. In the present study, urea, melamine, and salmonella are detected in cow and buffalo milk using SPR based technique. The performance of the proposed sensor for urea detection in buffalo and cow milk is 37.952°/RIU and 38.44°/RIU, respectively. In contrast, the sensitivity detected by the proposed SPR sensor for the salmonella and melamine salmonella adulteration in the milk is 22.0025°/RIU and 179.125°/RIU, respectively.

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“…The refractive index of these materials at the 633 nm wavelength is presented in Table 1. The value of the FoM [31][32][33] can be calculated by…”

Section: Proposed Sensor Designmentioning

confidence: 99%

A Theoretical Study to Estimate Milk Adulteration Using Surface Plasmon Technique

Prathap¹,

S²

2022

Preprint

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“…[11,12] Due to its ease of implementation, the former design is fairly common. [13,14] The effectiveness of SPR sensors is considerably diminished to the oxidation issue with metals. To lessen this issue, multilayered structured designs are frequently employed in design [15,16] This stack of many layers is carried out the enhancement of sensor sensitivity.…”

Section: Introductionmentioning

confidence: 99%

Theoretical Modeling of Surface Plasmon Resonance Biosensor Using Titanium Dioxide and Graphene Nanomaterial for Refractive Index Sensing

Yadav,

Lohia,

Singh

et al. 2023

Physica Status Solidi (a)

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The most popular method to determine the sensitivity of surface plasmon resonance sensors in the past couple of decades has been angular interrogation. The silver layer (Ag), a two‐dimensional layer of TiO2, dielectric material layer such as silicon (Si) with heterostructure material graphene is all stacked in the proposed surface plasmon resonance sensor. To increase sensitivity of SPR sensor in the visible area, the device structure focuses on the Kretschmann configuration, by which an TiO2 sheet is sandwiched between silver and silicon sheets. The proposed device structure makes use of the operational wavelength of 633 nm. The numerical simulation has been performed in MATLAB software in this device structure. The simulation results show that an analyte of refractive indices range 1.345 to 1.350. A single layer of silicon 3nm and TiO2 10nm make up the suggested SPR configuration, which increases the sensitivity to 281°/RIU. In this work, it has also been computed the figure of merit, detection accuracy, limit of detection, full width at half maximum, and TM electric field intensity. The biomedical and chemical fields have benefited from the proposed SPR sensor structure design.This article is protected by copyright. All rights reserved.

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“…This EWV decays exponentially across the interface. The SP generating at the interface of metal and dielectric have the wave vector 'Kx' known as surface plasmon wave vector (SPWV) [12]. The principle followed by the optical input wave is called attenuated total reflection (ATR) [13].…”

Section: Introductionmentioning

confidence: 99%

“…Its unique features, like greater bio-molecular absorption rate, in biosensor applications, give better sensitivity than gold metal. The prime disadvantage of using a single layer of Ag over prism is its susceptibility to oxidation [12]. This problem can be reduced using another material layer, further enhancing biomolecular adsorption.…”

Section: Introductionmentioning

confidence: 99%

Monitoring hemoglobin levels in human blood samples using an MXene-ZnO-graphene based Surface plasmon resonance biosensor

Manavalan

Kuppusamy

Uniyal

et al. 2022

Preprint

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The main aim of our present study is to propose a surface plasmon resonance-based biosensor design for hemoglobin concentration monitoring in human blood samples. The proposed SPR sensor is based upon the Kretschmann configuration with silver metal, MXene, ZnO, and graphene nanolayers, with a BK7 coupling prism. A He-Ne laser optical input source with a 633 nm wavelength is used following the attenuated total reflection (ATR) principle. After employing the MXene, ZnO, and graphene layers over the conventional sensor setup, an investigation is done. With the optimized structure, our main aim is to detect the presence of hemoglobin concentration in the human blood with its refractive index variation. The calculated highest sensitivity of the proposed configuration is 154 \(Degree/RIU\) with the other parameters calculated as FWHM near \(3.69 Degree\), SNR of 0.5051 \({\text{D}\text{e}\text{g}\text{r}\text{e}\text{e}}^{-1}\) and quality factor of 41.58 \({RIU}^{-1}\).

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Sensitivity enhancement of a graphene, zinc sulfide-based surface plasmon resonance biosensor with an Ag metal configuration in the visible region

Cited by 64 publications

References 36 publications

A Theoretical Study to Estimate Milk Adulteration Using Surface Plasmon Technique

A Theoretical Study to Estimate Milk Adulteration Using Surface Plasmon Technique

Theoretical Modeling of Surface Plasmon Resonance Biosensor Using Titanium Dioxide and Graphene Nanomaterial for Refractive Index Sensing

Monitoring hemoglobin levels in human blood samples using an MXene-ZnO-graphene based Surface plasmon resonance biosensor

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