Anti-human albumin monoclonal antibody immobilized on EDC-NHS functionalized carboxylic graphene/AuNPs composite as promising electrochemical HSA immunosensor
Authorized Users Only
2020
Authors
Stanković, Vesna
Đurđić, Slađana

Ognjanović, Miloš

Antić, Bratislav

Kalcher, Kurt
Mutić, Jelena

Stanković, Dalibor

Article (Published version)

Elsevier
Metadata
Show full item recordAbstract
Diagnosis and treatment of some important diseased and metabolic disorders is based on successful detection of albumin. In this work, we aim to develop a simple immunosensor for the detection of human serum albumin in biological fluids. Anti-human albumin antibody was covalently attached to the activated surface of screen-printed carbon electrodes enriched with carboxyl graphene/gold nanoparticles composite. Microstructure (TEM, FE-SEM, XRD) and electrochemical (CV, EIS) characterization methods were used to investigate composite properties and to confirm the successful modification of the electrodes. Under the optimal conditions, linear working range and limit of detection were 2.5–500 μg/mL and 1.55 μg/mL, respectively. Additionally, the effect of some possibly interfering compounds was investigated and the immunosensor was used for real sample analysis. The results showed that the sensor exhibited accurate, precise and sensitive characteristics and can be promising replacement to th...e convention methods for albumin detection in clinical practice.
Keywords:
Human serum albumin / Electrochemical biosensor / Immunosensor / Screen-printed carbon electrodeSource:
Journal of Electroanalytical Chemistry, 2020, 860, 113928-Publisher:
- Elsevier BV
Projects:
- Application of advanced oxidation processes and nanostructured oxide materials for the removal of pollutants from the environment, development and optimisation of instrumental techniques for efficiency monitoring (RS-172030)
- CEEPUS network: CIII-CZ-0212-12-1819-M-120151
- EUREKA project E! 13303 MED-BIO-TEST
Note:
- The peer-reviewed version: http://cer.ihtm.bg.ac.rs/handle/123456789/3420
DOI: 10.1016/j.jelechem.2020.113928
ISSN: 15726657