2023
DOI: 10.1016/j.talanta.2023.124841
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Gold nanostructures modified carbon-based electrode enhanced with methylene blue for point-of-care COVID-19 tests using isothermal amplification

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Cited by 9 publications
(5 citation statements)
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“…LAMP has shown significant promise as a screening method, especially in addressing pandemic situations and infectious diseases in resource-limited settings, such as SARS-CoV-2 (Huang et al 2020 ; Kim et al 2023 , 2019 ), malaria (Ponce et al 2017 ), human visceral leishmaniasis (de Avelar et al 2019 ), and Zika virus (Silva et al 2019 ). However, some challenges remain before it can replace conventional qPCR as a standard test.…”
Section: Discussionmentioning
confidence: 99%
“…LAMP has shown significant promise as a screening method, especially in addressing pandemic situations and infectious diseases in resource-limited settings, such as SARS-CoV-2 (Huang et al 2020 ; Kim et al 2023 , 2019 ), malaria (Ponce et al 2017 ), human visceral leishmaniasis (de Avelar et al 2019 ), and Zika virus (Silva et al 2019 ). However, some challenges remain before it can replace conventional qPCR as a standard test.…”
Section: Discussionmentioning
confidence: 99%
“…The latter techniques (e.g., chemiluminescent methods, ELISA, antibody tests) strongly depend on the kinetics of SARS-CoV-2 antibody, and thus the optimization of the tests and interpretation of the results can be challenging. Additional detection methods for SARS-CoV-2 virus include optical biosensors [5], electrochemical [6][7][8], FET biosensor [9], colorimetric detection [10], and others [11][12][13].…”
Section: Introductionmentioning
confidence: 99%
“…Moreover, LAMP requires a set of four specific primers that recognize six distinct sequences on the target DNA, limiting the simultaneous detection of multiple genes in a single reaction. Therefore, the combination of LAMP with biosensors maximizing multiplex capabilities has been extensively investigated [8,14,17]. For example, electrochemical sensors with multiple electrodes that measure the redox activity of electroactive molecules resulting from their interaction with LAMP products allow for highly sensitive detection.…”
Section: Introductionmentioning
confidence: 99%
“…For example, electrochemical sensors with multiple electrodes that measure the redox activity of electroactive molecules resulting from their interaction with LAMP products allow for highly sensitive detection. This approach involves immobilizing a probe onto a working electrode coupled with a redox reporter, and the electrochemical signals are then meticulously monitored using techniques that include linear-sweep [18], square-wave [19], and differential-pulse voltammetry [17,20]. Additionally, label-free electrical sensing using field-effect transistors (FETs) has been employed to detect pH changes during amplification reactions with various geometries and gating methods [21,22].…”
Section: Introductionmentioning
confidence: 99%