A theoretical analysis to improve the tuning and sensitivity of a surface plasmon resonance biosensor employing titanium disilicide–graphene heterostructures

Balaji, V.

doi:10.1007/s10825-021-01818-0

Cited by 12 publications

(5 citation statements)

References 36 publications

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“…The detection accuracy (DA) of the biosensor can be expressed as DA=1/FWHM, where FWHM is the width of the spectra of the SPR curve; at that point, the reflectivity is 50% of the maximum value. The high value of the sensitivity and DA is desirable [8]. The quality factor can be expressed as Q=S.DA=S/FWHM directly depends on the FWHM and sensitivity.…”

Section: Resultsmentioning

confidence: 99%

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Advances in Surface Plasmon Resonance-Based Biosensor Technologies for Cancer Cell Detection

Karki

Uniyal

Pal

et al. 2022

International Journal of Optics

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Efforts have been made to enhance the surface sensitivity of the conventional surface plasmon resonance biosensor. To improve the sensitivity, a unique two-dimensional heterostructure layer of titanium disilicide and black phosphorus layer has been deposited over the metal surface. The titanium disilicide (TiSi2) nanosheet is placed in between silver (Ag) and black phosphorus (BP) films in the Kretschmann arrangement. This biosensor executes better over a wide range of refractive index variations, including biological cell distribution in individual blood. It may become a fast method of detecting cancerous cells and the several variants of corona and other viruses that become pandemic. Using the finite element method-based simulation technique, the sensitivity obtained as 195.4 degree/RIU, 167.6 degree/RIU, 212.4 degree/RIU, 168.4 degree/RIU, 212.4 degree/RIU, 186.6 degree/RIU, 218.6 degree/RIU, 195.4 degree/RIU, 203.6 degree/RIU, 202.6 degree/RIU 203.6 degree/RIU, and 202.6 for basal (skin cancer), basal (normal cell), HeLa (cervical cancer), MCF-7 (breast cancer), HeLa (normal cell), Jurkat (blood cancer), Jurkat (normal cell), PCI-2 (adrenal gland cancer), PCI-2 (normal cell), MDA-MB-231 (breast cancer), MDA-MB-231 (normal cell), MCF-7 (breast cancer), and MCF-7 (normal cell), respectively, and other performance parameters such as detection accuracy, figure of merit, and full width and half maximum (FWHM) are also evaluated.

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Section: Resultsmentioning

confidence: 99%

“…It has high absorption efficiency and provides a direct bandgap of 0.5 eV at room temperature. Therefore, it has low resistivity properties and is suitable to design biosensors [8].…”

Section: Introductionmentioning

confidence: 99%

Advances in Surface Plasmon Resonance-Based Biosensor Technologies for Cancer Cell Detection

Karki

Uniyal

Pal

et al. 2022

International Journal of Optics

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“…Also, Due to their increased surface area and active sites, 2D materials are an excellent choice for biological and medical applications, including drug administration and cancer therapy, due to their better selectivity. [181][182][183][184][185] The capacitance, resistance, energy, and power properties of the device can only be measured using the current test methods, and little is known about how these metrics change throughout testing. Standard testing procedures are necessary for testing devices that are still being developed as well as for evaluating ECS in diverse test environments.…”

Section: Electrochemical Performance Of Mxene Hybrid Compositesmentioning

confidence: 99%

Progress and Prospects of MXene-Based Hybrid Composites for Next-Generation Energy Technology

Mohd Abdah,

Thakur

et al. 2023

J. Electrochem. Soc.

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MXenes are an emerging class of two-dimensional transition metal carbides and nitrides with metallic conductivity and hydrophilic surfaces. The discovery of MXenes has opened new possibilities for developing advanced hybrid composites for energy storage and conversion applications. This review summarizes recent advances in developing MXene-based hybrid composites, including their synthesis, characterization, and electrochemical performance. The heterostructure of MXenes with nanocarbons, metal oxides, polymers, and other nanomaterials can overcome the limitations of pristine MXenes and lead to enhanced lithium/sodium-ion storage, pseudocapacitive performance, and electrocatalytic activity. Various fabrication techniques have been employed to synthesize MXene composites with controlled nanostructures, morphology, and interfacial properties. Characterization by microscopy, spectroscopy, and electrochemical methods has shed light on structure-property relationships in these materials. As electrode materials, properly designed MXene hybrids have achieved high specific capacity, excellent rate capability, and long-term stability. The review also discusses strategies for further improving MXene composite energy storage performance, as well as emerging applications such as thermoelectrics and photocatalysis. Continued research to understand interfacial effects and optimize MXene heterostructures holds promise for developing next-generation energy storage technologies.

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“…Increasing satellite coverage: By using this antenna, satellite coverage in the SATCOM system can be improved. The ability to change the shape and adjust this antenna allows operators to transmit signals more accurately and intelligently and expand satellite coverage [36][37][38][39][40][41]. 3.…”

Section: Introductionmentioning

confidence: 99%

Graphene-based quad-port MIMO reconfigurable antennas for SATCOM and 5G applications

Kiani

Hamedani

Rezaei

2023

Preprint

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In this research, two graphene-based THz patch antenna structures for satellite communication and 5G applications is reported. In the unit cell analysis, it can be pointed out that the patch is made of graphene and the substrate is made of silicon dioxide. While its dielectric permittivity is 3.7. The operating frequency of the MIMO antenna is designed at 0.6 THz. In the plan of MIMO reconfigurable antenna, cells are arranged vertically. Reconfigurable conditions can be achieved by changing the chemical potential or in other words the bias voltage of graphene patches. The amount of chemical potential in the original project of both quad-port MIMO reconfigurable antennas is considered to be 0.6 eV. In the results of the first antenna, S11 is less than -10 dB in the range of 0.58786 THz through 0.63112 THz. In the results of the second antenna, S11 is less than -10 dB in the range of 0.57814 THz through 0.63391 THz. In the results of the first antenna, maximum efficiency is reported about 65%. In the results of the second antenna, maximum efficiency is reported about 72%. Finally, peak realized gains, radiation efficiencies, far-field 2D radiation patterns, VSWRs, current distributions, envelope correlation coefficients (port1-port2, port1-port3, port1-port4), and diversity gains (port1-port2, port1-port3, port1-port4) have all been reported over the operating frequency band for two antennas.

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A theoretical analysis to improve the tuning and sensitivity of a surface plasmon resonance biosensor employing titanium disilicide–graphene heterostructures

Cited by 12 publications

References 36 publications

Advances in Surface Plasmon Resonance-Based Biosensor Technologies for Cancer Cell Detection

Advances in Surface Plasmon Resonance-Based Biosensor Technologies for Cancer Cell Detection

Progress and Prospects of MXene-Based Hybrid Composites for Next-Generation Energy Technology

Graphene-based quad-port MIMO reconfigurable antennas for SATCOM and 5G applications

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