Szczegóły publikacji
Opis bibliograficzny
Microfabricated capacitive microwave biosensor for label-free Escherichia Coli bacteria detection / Ilona PIEKARZ, Jakub SOROCKI, Sabina Górska, Krzysztof WINCZA, Sławomir GRUSZCZYŃSKI // W: EuMC 2023 [Dokument elektroniczny] : 53rd European Microwave Conference : waves beyond walls : 17–22 September 2023, Berlin, Germany : conference proceedings. — Wersja do Windows. — Dane tekstowe. — [Piscataway] : IEEE, cop. 2023. — Dod. ISBN: 979-8-3503-4739-5 (Print on Demand). — e-ISBN: 978-2-87487-072-9. — S. 564–567. — Wymagania systemowe: Adobe Reader. — Bibliogr. s. 566–567, Abstr. — Błąd w nazwisku I. Piekarz
Autorzy (5)
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 151852 |
|---|---|
| Data dodania do BaDAP | 2024-03-14 |
| Tekst źródłowy | URL |
| DOI | 10.23919/EuMC58039.2023.10290679 |
| Rok publikacji | 2023 |
| Typ publikacji | materiały konferencyjne (aut.) |
| Otwarty dostęp |  |
| Wydawca | Institute of Electrical and Electronics Engineers (IEEE) |
Abstract
This paper presents a novel label-free microwave biosensor composed of a compact on-silicon capacitor covered with a biofunctionalization layer fabricated with a micrometer range feature size. Selective binding of bacteria is enabled using specific polyclonal anti-Escherichia coli antibodies. Bacteria presence is detected through the change of the mean capacitance value over broad bandwidth related to the post-biofunctionalization state. An experiment was carried out for a set of bacteria with well-established concentrations. The sensor's measured capacitance was averaged over the 2 - 7 GHz band and the obtained results prove the capability of Escherichia coli detection at concentrations reaching as low as 103 CFU/ml. The study results are promising for future biomedical applications, in terms of specific and rapid bacteria detection without the need for their labeling.
