A comparative study of different metal and prism in the surface plasmon resonance biosensor having MoS2-graphene

Maurya, Jitendra Bahadur; Prajapati, Yogendra Kumar

doi:10.1007/s11082-016-0562-6

Cited by 91 publications

(34 citation statements)

References 29 publications

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“…Verma et al ( 2015 ) reported that by adding graphene to the gold surface, the sensitivity of the sensor had increased from 30.85 to 33.98°/(RIU: refractive index unit). Similar results were also reported by Maurya and Prajapati ( 2016 ). They compared the sensitivity of SPR on four different structures, namely, bare Ag, Ag/graphene, Ag/MoS 2 , and Ag/MoS 2 /graphene.…”

Section: Introductionsupporting

confidence: 92%

“…However, bare Au surfaces are not suitable for the biosensor because of its poor absorbance properties of biomolecules (Wu et al, 2010 ). Therefore, traditional biosensors are not capable to detect low molecular weight of biomolecules because of poor attachment of these biomolecules to the bare metal surface (Maurya and Prajapati, 2016 ). Until now, many methods have been developed to increase the sensitivity of SPR sensor such as using adhesion layer (Agarwal et al, 2016a , b ), metal nanoparticles and nanohole (Prasad et al, 2019 ), metal nanoslits (Yeung et al, 2018 ), and gold nanoparticles (Amendola et al, 2017 ).…”

Section: Introductionmentioning

confidence: 99%

“…But the best performance is in the structure composed of MoS 2 and graphene (Maurya and Prajapati, 2016 ). Similar results were also shown by other metals such as Cu and Au (Maurya et al, 2015 ; Zeng et al, 2015 ; Maurya and Prajapati, 2016 ). In addition, some researchers also claim that 2D materials such as graphene can protect reactive metals (Cu, Ag, etc.)…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Exploring Graphene and MoS2 Chips Based Surface Plasmon Resonance Biosensors for Diagnostic Applications

2020

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Until now, two-dimensional (2D) nanomaterials have been widely studied and applied in the biosensor field. Some of the advantages offered by these 2D materials include large specific surface area, high conductivity, and easy surface modification. This review discusses the use of 2D material in surface plasmon resonance (SPR) biosensor for diagnostic applications. Two-dimensional material reviewed includes graphene and molybdenum disulfide (MoS 2 ). The discussion begins with a brief introduction to the general principles of the SPR biosensor. The discussion continues by explaining the properties and characteristics of each material and its effect on the performance of the SPR biosensor, in particular its sensitivity. This review concludes with some recent applications of graphene- and MoS 2 -based SPR biosensor in diagnostic applications.

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Section: Introductionsupporting

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Exploring Graphene and MoS2 Chips Based Surface Plasmon Resonance Biosensors for Diagnostic Applications

2020

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“…This value of sensitivity is also higher when compared against S B;θ reported in Ref. [50] (MoS 2 -graphene structures), Ref. [51] (ZnO films), and Ref.…”

Section: Resultsmentioning

confidence: 55%

High-sensitivity integrated devices based on surface plasmon resonance for sensing applications

Elshorbagy¹,

Cuadrado²,

Alda³

2017

Photon. Res.

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A metallic nanostructured array that scatters radiation toward a thin metallic layer generates surface plasmon resonances for normally incident light. The location of the minimum of the spectral reflectivity serves to detect changes in the index of refraction of the medium under analysis. The normal incidence operation eases its integration with optical fibers. The geometry of the arrangement and the material selection are changed to optimize some performance parameters as sensitivity, figure of merit, field enhancement, and spectral width. This optimization takes into account the feasibility of the fabrication. The evaluated results of sensitivity (1020 nm/RIU) and figure of merit (614 RIU −1 ) are competitive with those previously reported.

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“…These values are better than some recent proposals that use graphene [ 28 , 30 , 35 ], silicon nanostructures [ 27 ], dielectric or metallic gratings [ 26 , 29 ], oxide films [ 36 ], and metallic nanoprisms (gold coated over silver nanoprisms) [ 37 ]. When not working at normal incident, some other plasmonic structures, as the gold mushrooms, show a higher sensitivity but a lower FOM [ 38 ].…”

Section: Resultsmentioning

confidence: 89%

Plasmonic Sensor Based on Dielectric Nanoprisms

2017

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A periodic array of extruded nanoprisms is proposed to generate surface plasmon resonances for sensing applications. Nanoprisms guide and funnel light towards the metal-dielectric interface where the dielectric acts as the medium under test. The system works under normal incidence conditions and is spectrally interrogated. The performance is better than the classical Kretschmann configurations, and the values of sensitivity and figure of merit are competitive with other plasmonic sensor technologies. The geometry and the choice of materials have been made taking into account applicable fabrication constraints.

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A comparative study of different metal and prism in the surface plasmon resonance biosensor having MoS2-graphene

Cited by 91 publications

References 29 publications

Exploring Graphene and MoS2 Chips Based Surface Plasmon Resonance Biosensors for Diagnostic Applications

Exploring Graphene and MoS2 Chips Based Surface Plasmon Resonance Biosensors for Diagnostic Applications

High-sensitivity integrated devices based on surface plasmon resonance for sensing applications

Plasmonic Sensor Based on Dielectric Nanoprisms

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