Your browser doesn't support javascript.
Numerical Study of Titanium Dioxide and MXene Nanomaterial-Based Surface Plasmon Resonance Biosensor for Virus SARS-CoV-2 Detection.
Srivastava, Swati; Singh, Sachin; Mishra, Adarsh Chandra; Lohia, Pooja; Dwivedi, D K.
  • Srivastava S; Gorakhpur, 273010 India Photonics and Photovoltaic Research Lab, Department of Physics and Material Science, Madan Mohan Malaviya University of Technology.
  • Singh S; Gorakhpur, 273010 India Photonics and Photovoltaic Research Lab, Department of Physics and Material Science, Madan Mohan Malaviya University of Technology.
  • Mishra AC; Gorakhpur, 273010 India Photonics and Photovoltaic Research Lab, Department of Physics and Material Science, Madan Mohan Malaviya University of Technology.
  • Lohia P; Gorakhpur, 273010 India Department of Electronics and Communication Engineering, Madan Mohan Malaviya University of Technology.
  • Dwivedi DK; Gorakhpur, 273010 India Photonics and Photovoltaic Research Lab, Department of Physics and Material Science, Madan Mohan Malaviya University of Technology.
Plasmonics ; : 1-12, 2023 May 11.
Article in English | MEDLINE | ID: covidwho-2319519
ABSTRACT
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 CaF2 prism as base, at which silver (Ag), TiO2, 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 TiO2 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.
Keywords

Full text: Available Collection: International databases Database: MEDLINE Type of study: Diagnostic study Language: English Journal: Plasmonics Year: 2023 Document Type: Article

Similar

MEDLINE

...
LILACS

LIS


Full text: Available Collection: International databases Database: MEDLINE Type of study: Diagnostic study Language: English Journal: Plasmonics Year: 2023 Document Type: Article