Loading...

Design of an effective piezoelectric microcantilever biosensor for rapid detection of COVID-19

Kabir, H ; Sharif University of Technology | 2021

942 Viewed
  1. Type of Document: Article
  2. DOI: 10.1080/03091902.2021.1921067
  3. Publisher: Taylor and Francis Ltd , 2021
  4. Abstract:
  5. Acute respiratory syndrome coronavirus 2 (SARS-CoV-2), also called COVID-19, is one of the most contagious viruses resulting in a progressive pandemic. Since specific antiviral treatments have not been developed yet and its fatal rate is almost high, early and fast detection is critical for controlling the outbreak. In this study, a piezoelectric microcantilever biosensor has been designed for detecting COVID-19 samples directly without requiring preparation steps. The biosensor acts as a transducer and is coated with the related antibody. When the SARS-CoV-2 antigens adsorbed on the microcantilever top surface through their spike proteins, a surface stress due to the mass change would be prompted leading to the measurable tip deflection and floating voltage. To obtain a biosensor with optimum parameters, different shapes and piezoelectric materials have been assessed and it was concluded that a Poly (vinylidene fluoride) (PVDF) biosensor in a shape of a holed punched form triangle, represented the best result. Therefore, the highly sensitive microcantilever biosensor can detect COVID-19 in clinical samples with various viral loads, rapidly. Also, it is selective enough to differentiate SARS-CoV-2 from other viruses with similar symptoms. © 2021 Informa UK Limited, trading as Taylor & Francis Group
  6. Keywords:
  7. Chemical sensors ; Diseases ; Fluorine compounds ; Viruses ; Antiviral treatments ; Clinical samples ; Different shapes ; Micro-cantilevers ; Microcantilever biosensors ; Optimum parameters ; Piezoelectric micro cantilevers ; Poly (vinylidene fluoride)(PVDF) ; Biosensors ; Angiotensin converting enzyme 2 ; Barium ; Immobilized antibody ; Lead ; Polyvinylidene fluoride ; Silicon dioxide ; Virus RNA ; Virus spike protein ; Zinc oxide ; Polymer ; Antigen antibody complex ; Binding kinetics ; Coating (procedure) ; Coronavirus disease 2019 ; Cross reaction ; Immobilization ; Immunogenicity ; Influenza A virus (H1N1) ; Nasopharyngeal swab ; Nonhuman ; Piezoelectricity ; Poisson distribution ; Severe acute respiratory syndrome coronavirus 2 ; Signal processing ; Simulation ; Surface stress ; Thickness ; Throat swab ; Validation study ; Virus detection ; Virus load ; Young modulus ; Genetic procedures ; Pandemic ; Pathogenicity ; Virology ; Biosensing Techniques ; COVID-19 ; SARS-CoV-2
  8. Source: Journal of Medical Engineering and Technology ; Volume 45, Issue 6 , 2021 , Pages 423-433 ; 03091902 (ISSN)
  9. URL: https://www.tandfonline.com/doi/full/10.1080/03091902.2021.1921067