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Cited by 171

The DOI matches its Crossref record; 3 of the 3 references it cites were found in a registry or an index.

Rapid Point-of-Care COVID-19 Diagnosis with a Gold-Nanoarchitecture-Assisted Laser-Scribed Graphene Biosensor

Beduk, Tutku, Beduk, Duygu, de Oliveira Filho, José Ilton, Zihnioglu, Figen, Cicek, Candan, Sertoz, Ruchan, Arda, Bilgin, Goksel, Tuncay, Turhan, Kutsal, Salama, Khaled N., Timur, Suna·2021·Analytical Chemistry

Abstract

The global pandemic caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) virus has revealed the urgent need for accurate, rapid, and affordable diagnostic tests for epidemic understanding and management by monitoring the population worldwide. Though current diagnostic methods including real-time polymerase chain reaction (RT-PCR) provide sensitive detection of SARS-CoV-2, they require relatively long processing time, equipped laboratory facilities, and highly skilled personnel. Laser-scribed graphene (LSG)-based biosensing platforms have gained enormous attention as miniaturized electrochemical systems, holding an enormous potential as point-of-care (POC) diagnostic tools. We describe here a miniaturized LSG-based electrochemical sensing scheme for coronavirus disease 2019 (COVID-19) diagnosis combined with three-dimensional (3D) gold nanostructures. This electrode was modified with the SARS-CoV-2 spike protein antibody following the proper surface modifications proved by X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM) characterizations as well as electrochemical techniques. The system was integrated into a handheld POC detection system operated using a custom smartphone application, providing a user-friendly diagnostic platform due to its ease of operation, accessibility, and systematic data management. The analytical features of the electrochemical immunoassay were evaluated using the standard solution of S-protein in the range of 5.0-500 ng/mL with a detection limit of 2.9 ng/mL. A clinical study was carried out on 23 patient blood serum samples with successful COVID-19 diagnosis, compared to the commercial RT-PCR, antibody blood test, and enzyme-linked immunosorbent assay (ELISA) IgG and IgA test results. Our test provides faster results compared to commercial diagnostic tools and offers a promising alternative solution for next-generation POC applications.

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Metadata

Authors
Beduk, T., Beduk, D., de Oliveira Filho, J. I., Zihnioglu, F., Cicek, C., Sertoz, R., Arda, B., Goksel, T., Turhan, K., Salama, K. N., & Timur, S.
Venue
Analytical Chemistry
Published
2021-06-03
Volume
93
Issue
24
Pages
8585-8594
ISSN
  • 0003-2700 (ISSN-L)
  • 1520-6882
OpenAlex
W3164936482
Cited by
171
References
3
FWCI
10.37
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Rapid Point-of-Care COVID-19 Diagnosis with a Gold-Nanoarchitecture-Assisted Laser-Scribed Graphene Biosensor. https://app.cochat.ai/papers/10.1021/acs.analchem.1c01444
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Beduk, T., Beduk, D., de Oliveira Filho, J. I., Zihnioglu, F., Cicek, C., Sertoz, R., Arda, B., Goksel, T., Turhan, K., Salama, K. N., & Timur, S. (2021). Rapid Point-of-Care COVID-19 Diagnosis with a Gold-Nanoarchitecture-Assisted Laser-Scribed Graphene Biosensor. Analytical Chemistry. https://doi.org/10.1021/acs.analchem.1c01444

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Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.