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Reinikovaite V, Matulevicius M, Elsakova A, Drobysh M, Liustrovaite V, Luksa A, Jafarov A, Slibinskas R, Ramanavicius A, Baradoke A. Electrochemical capacitance spectroscopy based determination of antibodies against SARS-CoV-2 virus spike protein. Sci Total Environ 2023; 903:166447. [PMID: 37604377 DOI: 10.1016/j.scitotenv.2023.166447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 08/17/2023] [Accepted: 08/18/2023] [Indexed: 08/23/2023]
Abstract
In this study, we are reporting a novel electrochemical capacitance spectroscopy (ECS) platform designed for the sensitive and label-free detection of antibodies against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) virus spike protein (anti-rS) in diluted blood serum. The determination of anti-rS is crucial for identification individuals who have been infected by SARS-CoV-2 virus and may have acquired immunity. The rS protein was immobilized on a screen-printed carbon electrode, which was incubated in diluted blood serum containing anti-rS antibodies. Label-free ECS was applied for the determination of interaction between immobilized rS and free-standing anti-rS. Here reported bioanalytical platform demonstrated high sensitivity and specificity in detecting anti-rS, achieving a limit of detection of 4.38 nM. This versatile platform could be further enhanced by applying various electrode materials and adapting this platform to detect antibodies against some other proteins. Our findings have significant implications for the development of affordable, scalable biosensing platforms capable to provide rapid and accurate public health screening and monitoring, particularly in the context of the coronavirus disease 2019 (COVID-19) pandemic.
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Affiliation(s)
- Viktorija Reinikovaite
- Department of Physical Chemistry, Faculty of Chemistry and Geosciences, Vilnius University, Naugarduko str. 24, 03225 Vilnius, Lithuania
| | - Matas Matulevicius
- Department of Physical Chemistry, Faculty of Chemistry and Geosciences, Vilnius University, Naugarduko str. 24, 03225 Vilnius, Lithuania
| | - Alexandra Elsakova
- Department of Physical Chemistry, Faculty of Chemistry and Geosciences, Vilnius University, Naugarduko str. 24, 03225 Vilnius, Lithuania; Institute of Technology, Nooruse 1, 50411 Tartu, Estonia
| | - Maryia Drobysh
- Department of Physical Chemistry, Faculty of Chemistry and Geosciences, Vilnius University, Naugarduko str. 24, 03225 Vilnius, Lithuania; State Research Institute Center for Physical Sciences and Technology, Sauletekio ave. 3, 10007 Vilnius, Lithuania
| | - Viktorija Liustrovaite
- Department of Physical Chemistry, Faculty of Chemistry and Geosciences, Vilnius University, Naugarduko str. 24, 03225 Vilnius, Lithuania
| | - Algirdas Luksa
- State Research Institute Center for Physical Sciences and Technology, Sauletekio ave. 3, 10007 Vilnius, Lithuania
| | - Ali Jafarov
- Department of Physical Chemistry, Faculty of Chemistry and Geosciences, Vilnius University, Naugarduko str. 24, 03225 Vilnius, Lithuania; Institute of Biomedicine and Translational Medicine, Ravila 19, 50412 Tartu, Estonia
| | - Rimantas Slibinskas
- Department of Physical Chemistry, Faculty of Chemistry and Geosciences, Vilnius University, Naugarduko str. 24, 03225 Vilnius, Lithuania; Institute of Biotechnology, Life Sciences Center, Vilnius University, Sauletekio ave. 7, LT-10257 Vilnius, Lithuania
| | - Arunas Ramanavicius
- Department of Physical Chemistry, Faculty of Chemistry and Geosciences, Vilnius University, Naugarduko str. 24, 03225 Vilnius, Lithuania; State Research Institute Center for Physical Sciences and Technology, Sauletekio ave. 3, 10007 Vilnius, Lithuania.
| | - Ausra Baradoke
- State Research Institute Center for Physical Sciences and Technology, Sauletekio ave. 3, 10007 Vilnius, Lithuania
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