Titanium dioxide, black phosphorus and bimetallic layer-based surface plasmon biosensor for formalin detection: numerical analysis

Karki, Bhishma; Ramya, K. C.; Devi, R. S. Sandhya; Srivastava, Vivek; Pal, Amrindra

doi:10.1007/s11082-022-03875-6

Cited by 36 publications

(8 citation statements)

References 58 publications

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“…Numerically expressed by [28]: DA = 𝐹𝑊𝐻𝑀 −1 , expressed in Deg −1 , Another parameter that calculates the quality of the sensor is the Figure of merit (FOM) or Quality factor (Q). Mathematically expressed by [29]: 𝐹𝑂𝑀 = 𝑆 . 𝐷𝐴, its unit is RIU -1 .…”

Section: Methodology and Considerationsmentioning

confidence: 99%

Early detection of Chikungunya virus utilizing the Surface Plasmon Resonance comprising of Silver-Silicon-PtSe 2 Multi-Layer Structure

Singh¹,

Singh²,

Karki

2023

Preprint

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The sensing performance parameters of the SPR sensors are sensitivity, detection accuracy, figure of merit (FOM) and full width half maximum (FWHM), and it has been discussed with Refractive index of analyte 1.33, 1.35, 1.38 and 1.39. In this, we proposed a multilayer structure comprising nano films of Ag, Silicon, PtSe2 for the early diagnosis of chikungunya virus. The suggested sensor structure consists of BK7 (Borosilicate Crown) coupling prism over which the nano film of silver metal is present. The layer thicknesses and the number of PtSe2 sheets are optimized for the high performance. At the operating wavelength of 633 nm, a Kretschmann based SPR sensor has been proposed which gives highest sensitivity of 287.3 Deg/RIU. The principal of attenuated total reflection has been employed for the performance analysis of the sensor.

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Section: Methodology and Considerationsmentioning

confidence: 99%

Early detection of Chikungunya virus utilizing the Surface Plasmon Resonance comprising of Silver-Silicon-PtSe 2 Multi-Layer Structure

Singh¹,

Singh²,

Karki

2023

Preprint

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show abstract

“…Another parameter that calculates the quality of the sensor is the figure of merit (FOM) or quality factor (Q). Mathematically expressed by [ 30 ]: , its unit is RIU −1 .…”

Section: Methodology and Considerationsmentioning

confidence: 99%

Early Detection of Chikungunya Virus Utilizing the Surface Plasmon Resonance Comprising a Silver-Silicon-PtSe2 Multilayer Structure

Singh¹,

Singh²,

Karki

2023

Plasmonics

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The sensing performance parameters of the SPR sensors are sensitivity, detection accuracy, the figure of merit (FOM), and full-width half maximum (FWHM), and it has been discussed with refractive indexes of analyte 1.33, 1.35, 1.38, and 1.39. In this, we proposed a multilayer structure comprising nanofilms of Ag, Silicon, and PtSe 2 for the early diagnosis of chikungunya virus. The suggested sensor structure consists of a BK7 (borosilicate crown) coupling prism over which the nanofilm of silver metal is present. The layer thicknesses and the number of silicon and PtSe 2 sheets are optimized for high performance. At the operating wavelength of 633 nm, a Kretschmann-based SPR sensor has been proposed, which gives the highest sensitivity of 287.3 Deg/RIU. The principle of attenuated total reflection has been employed for the performance analysis of the sensor.

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“…An emerging branch of biosensor known as the surface plasmon resonance (SPR)-based biosensor is being recommended because of its quick, accurate, real-time mapping, label-free, and highly sensitive response [ 11 ]. Due to its above properties, it is used in various fields of medical diagnostics, biotechnology [ 12 ], and as detection technique for novel viruses, influenza H1N1 [ 13 ], EV71 virus [ 14 ], and formalin detection [ 15 ]. In accordance with the above advantages, it is also involved in the identification of the respiratory syndrome coronavirus.…”

Section: Introductionmentioning

confidence: 99%

“…TiO 2 employed surface plasmon resonance-based biosensors that have been reported for detection of cancer cells [ 28 ]. Karki et al reported a TiO 2 -SiO 2 layers-based biosensor for formalin detection [ 15 ].…”

Section: Introductionmentioning

confidence: 99%

Numerical Study of Titanium Dioxide and MXene Nanomaterial-Based Surface Plasmon Resonance Biosensor for Virus SARS-CoV-2 Detection

et al. 2023

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A novel surface plasmon resonance-based biosensor for SARS-CoV-2 virus is proposed in this article. The biosensor is a Kretschmann configuration-based structure that consists of CaF 2 prism as base, at which silver (Ag), TiO 2 , and MXene nanolayers are used to enhance the performance. Theoretically, the performance parameters have been investigated by means of Fresnel equations and transfer matrix method (TMM). The TiO 2 nanolayer not only prevents oxidation of Ag layer but also enhances the evanescent field in its vicinity. The sensor provides an ultrahigh angular sensitivity of 346°/RIU for the detection of SARS-CoV-2 virus. Some other performance parameters, including FWHM (full width at half maxima), detection accuracy (DA), limit of detection (LOD), and quality factor (QF) have also been calculated for proposed SPR biosensor with their optimized values 2.907°, 0.3439 deg −1 , 1.445 × 10 −5 , and 118.99 RIU −1 , respectively. The obtained results designate that the proposed surface plasmon resonance (SPR) based biosensor has notably enhanced angular sensitivity as compared to previous results reported in the literatures till date. This work may facilitate a significant biological sample sensing device for fast and accurate diagnosis at early stage of SARS-CoV-2 virus.

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Titanium dioxide, black phosphorus and bimetallic layer-based surface plasmon biosensor for formalin detection: numerical analysis

Cited by 36 publications

References 58 publications

Early detection of Chikungunya virus utilizing the Surface Plasmon Resonance comprising of Silver-Silicon-PtSe 2 Multi-Layer Structure

Early detection of Chikungunya virus utilizing the Surface Plasmon Resonance comprising of Silver-Silicon-PtSe 2 Multi-Layer Structure

Early Detection of Chikungunya Virus Utilizing the Surface Plasmon Resonance Comprising a Silver-Silicon-PtSe2 Multilayer Structure

Numerical Study of Titanium Dioxide and MXene Nanomaterial-Based Surface Plasmon Resonance Biosensor for Virus SARS-CoV-2 Detection

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