Your browser doesn't support javascript.
Electrical biosensing system utilizing ion-producing enzymes conjugated with aptamers for the sensing of severe acute respiratory syndrome coronavirus 2.
Nukazuka, Akira; Asai, Satomi; Hayakawa, Kei; Nakagawa, Kazuhisa; Kanazashi, Mana; Kakizoe, Hidefumi; Hayashi, Kyoko; Kawahara, Toshio; Sawada, Kazuaki; Kuno, Hitoshi; Kano, Kazuhiko.
  • Nukazuka A; DENSO Corporation, 1-1 Showa-cho, Kariya, Aichi 448-8661, Japan.
  • Asai S; Department of Laboratory Medicine, Tokai University School of Medicine, 143 Shimogasuya, Isehara, Kanagawa 259-1193, Japan.
  • Hayakawa K; DENSO Corporation, 1-1 Showa-cho, Kariya, Aichi 448-8661, Japan.
  • Nakagawa K; DENSO Corporation, 1-1 Showa-cho, Kariya, Aichi 448-8661, Japan.
  • Kanazashi M; DENSO Corporation, 1-1 Showa-cho, Kariya, Aichi 448-8661, Japan.
  • Kakizoe H; Department of Laboratory Medicine, Tokai University School of Medicine, 143 Shimogasuya, Isehara, Kanagawa 259-1193, Japan.
  • Hayashi K; College of Life and Health Sciences, Chubu University, 1200 Matsumotocho, Kasugai, Aichi 487-0027, Japan.
  • Kawahara T; College of Life and Health Sciences, Chubu University, 1200 Matsumotocho, Kasugai, Aichi 487-0027, Japan.
  • Sawada K; Department of Electrical and Electronic Information Engineering, Toyohashi University of Technology, Hibarigaoka-1-1 Tenpakucho, Toyohashi, Aichi 441-8122, Japan.
  • Kuno H; DENSO Corporation, 1-1 Showa-cho, Kariya, Aichi 448-8661, Japan.
  • Kano K; DENSO Corporation, 1-1 Showa-cho, Kariya, Aichi 448-8661, Japan.
Sens Biosensing Res ; 39: 100549, 2023 Feb.
Article in English | MEDLINE | ID: covidwho-2183030
ABSTRACT
Viral outbreaks, which include the ongoing coronavirus disease 2019 (COVID-19) pandemic provoked by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), are a major global crisis that enormously threaten human health and social activities worldwide. Consequently, the rapid and repeated treatment and isolation of these viruses to control their spread are crucial to address the COVID-19 pandemic and future epidemics of novel emerging viruses. The application of cost-efficient, rapid, and easy-to-operate detection devices with miniaturized footprints as a substitute for the conventional optic-based polymerase chain reaction (PCR) and immunoassay tests is critical. In this context, semiconductor-based electrical biosensors are attractive sensing platforms for signal readout. Therefore, this study aimed to examine the electrical sensing of patient-derived SARS-CoV-2 samples by harnessing the activity of DNA aptamers directed against spike proteins on viral surfaces. We obtained rapid and sensitive virus detection beyond the Debye length limitation by exploiting aptamers coupled with alkaline phosphatases, which catalytically generate free hydrogen ions which can readily be measured on pH meters or ion-sensitive field-effect transistors. Furthermore, we demonstrated the detection of the viruses of approximately 100 copies/µL in 10 min, surpassing the capability of typical immunochromatographic assays. Therefore, our newly developed technology has great potential for point-of-care testing not only for SARS-CoV-2, but also for other types of pathogens and biomolecules.
Keywords

Full text: Available Collection: International databases Database: MEDLINE Type of study: Diagnostic study Language: English Journal: Sens Biosensing Res Year: 2023 Document Type: Article Affiliation country: J.sbsr.2023.100549

Similar

MEDLINE

...
LILACS

LIS


Full text: Available Collection: International databases Database: MEDLINE Type of study: Diagnostic study Language: English Journal: Sens Biosensing Res Year: 2023 Document Type: Article Affiliation country: J.sbsr.2023.100549