A highly performed SPR biosensor based on bismuth ferrite-bromide materials-BP/graphene hybrid structure

Vasimalla, Yesudasu; Pradhan, Himansu Shekhar

doi:10.1007/s11082-021-03347-3

Cited by 17 publications

(3 citation statements)

References 54 publications

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“…In the context of Bi-based NPs, the SPR characteristics can enhance the photocatalytic performance of the catalyst, thereby promoting the progress of photocatalytic reactions. [124][125][126] The modulation of SPR properties can be achieved by adjusting the shape, size, and composition of catalyst. Importantly, the relatively low preparation cost and environmental friendliness of Bi-based NPs make them conducive to widespread practical applications.…”

Section: Photocatalysismentioning

confidence: 99%

Applications of bismuth-based nanoparticles for the removal of pollutants in wastewater: a review

Jiang,

Zhang,

Gong

2024

Environ. Sci.: Nano

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Section: Photocatalysismentioning

confidence: 99%

Applications of bismuth-based nanoparticles for the removal of pollutants in wastewater: a review

Jiang,

Zhang,

Gong

2024

Environ. Sci.: Nano

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“…There are two possible setups for the prism-based SPRE sensor: (1) Kretschmann and (2) Otto. Kretschmann configuration is preferred for experimental work with superior results using the angular interrogation method due to less absorption loss [ 26 , 27 ]. The stimulation of the surface plasmons (SPNs) can be applied to the SPRE sensors for producing the surface plasmon waves (SPWEs) on the metallic film by applying the attenuated total reflection method [ 28 ].…”

Section: Introductionmentioning

confidence: 99%

Detection of Virus SARS-CoV-2 Using a Surface Plasmon Resonance Device Based on BiFeO3-Graphene Layers

et al. 2023

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Coronavirus disease (COVID-19) pandemic outbreak is being investigated by severe respirational syndrome coronavirus-2 (SARS-CoV-2) as a global health issue. It is crucial to propose sensitive and rapid coronavirus detectors. Herein, we propose a biosensor based on surface plasmon resonance (SPRE) for the detection of SARS-CoV-2 virus. To achieve improved sensitivity, a BiFeO 3 layer is inserted between a metal (Ag) thin film and a graphene layer in the proposed SPRE device so that it has the structure BK7 prism/ Ag/ BiFeO 3 / graphene/ analyte. It has been demonstrated that a small variation in the refractive index of the analyte can cause a considerable shift in the resonance angle caused by the remarkable dielectric properties of the BiFeO 3 layer, which include a high index of refraction and low loss. The proposed device has shown an extremely high sensitivity of 293 deg/RIU by optimizing the thicknesses of Ag, BiFeO 3 , and the number of graphene sheets. The proposed SPRE-based sensor is encouraging for use in various sectors of biosensing because of its high sensitivity.

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“…BP has a better capacity to adsorb biomolecules compare to graphene and MoS2 [22]. Yesudasu Vasimalla et al reported an SPR biosensor based on the silica-barium titanate framework and BP to achieve 370 °/RIU sensitivity [23], Their team also discovered that bismuth ferrate-bromide-BP structure increased performance more effectively than bismuth ferrate-bromide-graphene structure [24]. Though the 2D nanomaterial can improve the sensor's angular sensitivity, it is challenging to maintain its accuracy and figure of merit.…”

mentioning

confidence: 99%

Sensitivity Improvement of Bimetallic Layer-Based SPR Biosensor Using ZnO and Black Phosphorus

Wang

Zhang

Liu

et al. 2023

Preprint

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In this paper, a brand-novel surface plasmon resonance (SPR) biosensor structure built by bimetallic layers (Ag, Al2O3), zinc oxide (ZnO), and black phosphorus (BP) is proposed. The incident light wavelength is 633nm. The angular sensitivity (S), detection accuracy (DA), the figure of merit (FoM), and electric field strength of the proposed construction and other constructions are numerically investigated and compared. To optimize the sensor's performance, the influence of the thickness of each layer on the proposed construction’s performance was simulated. The proposed construction utilizes the large surface-to-volume ratio of ZnO along with the high biomolecule adsorption of BP for sensing performance improvement. It is found that the proposed sensing structure’s highest sensitivity of 400 °/RIU, that's 294.75% higher than the conventional silver-based sensor. This sensing structure might provide ideas for the construction of precision detection suited SPR sensors.

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A highly performed SPR biosensor based on bismuth ferrite-bromide materials-BP/graphene hybrid structure

Cited by 17 publications

References 54 publications

Applications of bismuth-based nanoparticles for the removal of pollutants in wastewater: a review

Applications of bismuth-based nanoparticles for the removal of pollutants in wastewater: a review

Detection of Virus SARS-CoV-2 Using a Surface Plasmon Resonance Device Based on BiFeO3-Graphene Layers

Sensitivity Improvement of Bimetallic Layer-Based SPR Biosensor Using ZnO and Black Phosphorus

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