ELISA ON MAGNETIC BEADS WITH ELECTROCHEMICAL DETECTION FOR NT-PROBNP ANALYSIS IN HUMAN BLOOD SERUM
- Авторлар: Sorokina O.N.1, Konstantinova T.S.1, Vorobyova A.K.1, Vasilyeva A.D.1, Eremenko A.V.1, Lyzhenkova A.V.2, Zobova E.V.3, Minushkina L.O.3, Kurochkin I.N.1,4
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Мекемелер:
- Emanuel Institute of Biochemical Physics, Russian Academy of Sciences
- Bauman City Clinical Hospital No. 29, Moscow Health Department
- Central State Medical Academy of Department of Presidential Affairs
- Lomonosov Moscow State University
- Шығарылым: Том 80, № 11 (2025)
- Беттер: 1224-1233
- Бөлім: ORIGINAL ARTICLES
- ##submission.dateSubmitted##: 17.11.2025
- URL: https://journals.rcsi.science/0044-4502/article/view/351856
- DOI: https://doi.org/10.7868/S3034512X25110091
- ID: 351856
Дәйексөз келтіру
Аннотация
This article presents a new electrochemical method for enzyme-linked immunosorbent assay (ELISA) on magnetic microparticles functionalized with antibodies specific to the cardiac biomarker NT-proBNP. Alkaline phosphatase was chosen as the enzyme label. Signal detection was performed using differential pulse voltammetry on disposable electrodes. The method is characterized by high sensitivity, with a detection limit of ~35 pg/mL, and a short analysis time of up to 20 minutes, making it promising for clinical practice. Optimization of key method parameters was carried out, including component concentrations, temperature, and incubation time. The method was tested on 34 samples of serum from healthy individuals and patients with cardiovascular diseases. To assess the method’s applicability in clinical practice, a correlation analysis was performed between the electrochemical signal intensities and concentration data obtained from the Mindray BS-800 and Getein-1100 analyzers. Statistical analysis revealed a high linear correlation between the signal obtained by the developed method and the target protein concentrations in the samples: correlation coefficients were 0.96 for Mindray BS-800 and 0.93 for Getein-1100.
Авторлар туралы
O. Sorokina
Emanuel Institute of Biochemical Physics, Russian Academy of Sciences
Email: ts.konst@gmail.com
Moscow, Russia
T. Konstantinova
Emanuel Institute of Biochemical Physics, Russian Academy of Sciences
Email: ts.konst@gmail.com
Moscow, Russia
A. Vorobyova
Emanuel Institute of Biochemical Physics, Russian Academy of Sciences
Email: ts.konst@gmail.com
Moscow, Russia
A. Vasilyeva
Emanuel Institute of Biochemical Physics, Russian Academy of Sciences
Email: ts.konst@gmail.com
Moscow, Russia
A. Eremenko
Emanuel Institute of Biochemical Physics, Russian Academy of Sciences
Email: ts.konst@gmail.com
Moscow, Russia
A. Lyzhenkova
Bauman City Clinical Hospital No. 29, Moscow Health Department
Email: ts.konst@gmail.com
Moscow, 111020 Russia
E. Zobova
Central State Medical Academy of Department of Presidential Affairs
Email: ts.konst@gmail.com
Moscow, 121359 Russia
L. Minushkina
Central State Medical Academy of Department of Presidential Affairs
Email: ts.konst@gmail.com
Moscow, 121359 Russia
I. Kurochkin
Emanuel Institute of Biochemical Physics, Russian Academy of Sciences; Lomonosov Moscow State University
Хат алмасуға жауапты Автор.
Email: ts.konst@gmail.com
Moscow, Russia; Moscow, 119234 Russia
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