High-performance bimetallic surface plasmon resonance biochemical sensor using a black phosphorus–MXene hybrid structure

Kumar, R.; Pal, Sarika; Pal, Narendra; Mishra, Vimal Kumar; Prajapati, Yogendra Kumar

doi:10.1007/s00339-021-04408-w

Cited by 58 publications

(11 citation statements)

References 49 publications

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“…Now, the performance analysis of proposed SPR design for different Hb concentrations along with optimization of constituent layers is presented in this section. It is very important to optimize the thicknesses of constituent layers in order to balance the photon absorption energy efficiency and energy loss of each layer [ 23 ]. The thicknesses of all constituent layer of the proposed SPR design are optimized in terms of minimum reflectance and change in resonance angle obtained for the proposed biosensor.…”

Section: Resultsmentioning

confidence: 99%

“…Monolayer antimonene is desired for the proposed biosensor design to lessen the effective damping of SPs. Thus, further increment in antimonene layers can be overburdened by the inescapable energy loss [ 23 , 24 ]. The effective SPR biosensor should show superior resonance angle shift as well as very low minimum reflectivity and less than 0.01 [ 36 ].…”

Section: Resultsmentioning

confidence: 99%

“…The 2D nanomaterial graphene and WS 2 were used to enhance the sensitivity of SPR biosensor. A number of available 2D nanomaterials such as black phosphorus (BP), TMDCs and MXene are available, but some of them are chemically unstable and show weak interaction with the biomolecules [ 15 , 20 – 23 ]. Among popular 2D nanomaterials, graphene shows shortcoming of zero bandgap, hydrophobicity and MoS 2 shows less conductivity which limits the biosensor performance [ 23 ].…”

Section: Introductionmentioning

confidence: 99%

“…A number of available 2D nanomaterials such as black phosphorus (BP), TMDCs and MXene are available, but some of them are chemically unstable and show weak interaction with the biomolecules [ 15 , 20 – 23 ]. Among popular 2D nanomaterials, graphene shows shortcoming of zero bandgap, hydrophobicity and MoS 2 shows less conductivity which limits the biosensor performance [ 23 ]. BP shows 40 times higher molar response factor even greater than graphene and TMDCs, high charge carrier confinement and parts per billion sensing ability, but its susceptibility to oxidation limits its use for direct attachment of analyte in SPR biosensor [ 22 , 23 ].…”

Section: Introductionmentioning

confidence: 99%

“…Among popular 2D nanomaterials, graphene shows shortcoming of zero bandgap, hydrophobicity and MoS 2 shows less conductivity which limits the biosensor performance [ 23 ]. BP shows 40 times higher molar response factor even greater than graphene and TMDCs, high charge carrier confinement and parts per billion sensing ability, but its susceptibility to oxidation limits its use for direct attachment of analyte in SPR biosensor [ 22 , 23 ]. The 2D nanomaterial with large absorption energy and high work function is more favorable to be used as a BRE layer to enhance the biosensor performance.…”

Section: Introductionmentioning

confidence: 99%

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A nanolayered structure for sensitive detection of hemoglobin concentration using surface plasmon resonance

et al. 2021

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The objective of the proposed work is to design a biosensor that monitors hemoglobin (Hb) concentration using the combination of nanolayer, i.e., barium titanate (BaTiO 3 ) and antimonene based on surface plasmon resonance (SPR) technique. Antimonene is used here as bio-recognition element (BRE) layer to attach the Hb analyte through physical adsorption due to its hydrophilic nature, higher adsorption energy and larger active surface area. The use of BaTiO 3 adlayer (7 nm) just before antimonene is to enhance the refractive index (RI) sensitivity up to 1.90 times for the proposed SPR biosensor. The reason behind sensitivity enhancement is its high dielectric constant which enhances the electromagnetic field with in analyte medium. The performance of the biosensor is demonstrated with performance parameters namely sensitivity, detection accuracy (DA), figure of merit (FOM) and resolution. The proposed biosensor has potential to achieve much higher performance in terms of RI sensitivity of 303.83°/RIU, FOM of 50.39 RIU −1 and resolution of 0.021 g/l in comparison with reported biosensors in the literature for detection of Hb concentration. Thus, based on the obtained results one can say that the proposed work unlocks a reliable sensing in the field of medical science to detect hemoglobin-related diseases in human being.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A nanolayered structure for sensitive detection of hemoglobin concentration using surface plasmon resonance

et al. 2021

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Current Understanding of the Wettability of MXenes

Zhou

et al. 2022

Adv Materials Inter

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Since the first report regarding the successful fabrication of few‐layer transition metal carbides (known as MXenes) of 2011, their intrinsic properties, such as mechanical strength and electrical conductivity, are intensively studied. Though the hydrophilic nature of MXenes is widely reported and utilized to fabricate various functional materials, there is a lack of systematic study with respect to the science behind the wetting phenomena of MXene‐based materials. The goal of this manuscript is to provide some useful guidelines in the design of novel MXene‐based systems with desirable wetting properties by analyzing the current understanding of the wettability of MXenes. Specifically, after the introduction of the fundamental concepts in wetting theory, the wettability of pure MXene films is summarized based on the recently published results from both theoretical and experimental studies. Then, the determining factors in the wetting properties of MXenes associated with surface architectures and chemical compositions are clarified, which is followed by the effect of hybridization strategies discussed in detail. In the end, a summary of the abundant applications relying on the wetting properties of MXene‐based systems is presented along with the current challenges and the corresponding future research directions in this field.

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Numerical Analysis of Black Phosphorus‐Assisted Copper‐Based Bimetallic‐Enhanced Surface Plasmon Resonance Biosensor

Guo

Chen

et al. 2023

Physica Status Solidi (a)

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Atomically thin black phosphorus (BP) is an emerging 2D material with excellent optical and electrical properties. Copper (Cu) and platinum (Pt) are plasmonic metals due to their outstanding electrical properties. Here, Cu–Pt as the plasmonic bimetal is used, BP as the sensing substrate combined with a composite layer of titanium dioxide–silicon dioxide (TiO2–SiO2) to achieve significant enhancement in sensitivity. All of the calculations are based on the transfer matrix method and Fresnel equations. Through systematic optimization of all parameters, the configuration of TiO2(15 nm)/SiO2 (5 nm)/Cu (26 nm)/Pt (9 nm)/BP (4 layers) is achieved, where the sensitivity of 533° RIU−1 reaches 390% of pure copper‐based biosensor. There is a linear range of sensitivity with the change of refractive index for this optimal configuration. The detection limit of the refractive index change can be as low as 2 × 10−7 RIU, two orders of magnitude lower compared with that of pure copper‐based sensors, indicating great potential to detect trace biomolecules.

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High-performance bimetallic surface plasmon resonance biochemical sensor using a black phosphorus–MXene hybrid structure

Cited by 58 publications

References 49 publications

A nanolayered structure for sensitive detection of hemoglobin concentration using surface plasmon resonance

A nanolayered structure for sensitive detection of hemoglobin concentration using surface plasmon resonance

Current Understanding of the Wettability of MXenes

Numerical Analysis of Black Phosphorus‐Assisted Copper‐Based Bimetallic‐Enhanced Surface Plasmon Resonance Biosensor

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