Electrochemical biosensors for SARS-CoV-2 detection: Voltametric or impedimetric transduction?

Antiochia, Riccarda

doi:10.1016/j.bioelechem.2022.108190

Cited by 24 publications

(12 citation statements)

References 68 publications

(84 reference statements)

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“…38,40 The global market for sensors has been expanding remarkably and sensors sales may reach as much as US$1 trillion by 2025. [38][39][40] Although not yet widely applied in routine analysis, biosensors can be considered innovative, selective, sensitive and less expensive, with real-time usability, environmentally friendly and fast. They can be considered effective tools to replace the traditional methods.…”

Section: Discussionmentioning

confidence: 99%

A Novel Electrochemical Immunosensor Based on Anti-IgY and PLA/PEG Nanofibrous Mats Used for Allergens Detection in Farinaceous Products

Alves

Notário

Correia

et al. 2023

J. Electrochem. Soc.

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The present study focuses on the first electrochemical immunosensor built with polymeric mats enriched with nanomaterials, targeting the dust mite protein, for the detection of allergens in flour sources with important implications in allergic reactions. As a proof-of-concept, we have used the Blo t 5 allergen from Blomia tropicalis (target) and established electrochemical parameters to recognize and detect the specific allergen using a polyclonal immunoglobulin (Ig) Y (probe). Detection was performed in a portable potentiostat (EmStat) using a graphite screen-printed electrode. For that, the nanofibrous mats of poly(lactic acid)/poly(ethylene glycol), and carbon nanotubes were placed in contact with the surface of the electrodes. The functionalization that occurs through the deposition of the polymer was induced through the passage of current. Subsequently, the modification was validated by cyclic voltammetry (CV) readings and ferri/ferrocyanide was used as a redox indicator in CV analyses. The novel immunosensor was able to discriminate between allergen-contaminated and uncontaminated farinaceous samples. The immunosensor displays high sensitivity detecting up to 50 µg/ml in the calibration curve with a linear response between 5 and 500 µg/ml. The new biosensor shows great potential in the detection of farinaceous contaminants in laboratories, food factories and in the field.

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Section: Discussionmentioning

confidence: 99%

A Novel Electrochemical Immunosensor Based on Anti-IgY and PLA/PEG Nanofibrous Mats Used for Allergens Detection in Farinaceous Products

Alves

Notário

Correia

et al. 2023

J. Electrochem. Soc.

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show abstract

“…μPADs have several advantages including low cost and easy fabrication based on established patterning methods [ 130 , 131 ]. Some common electrochemical techniques such as cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), chronoamperometry, and electroluminescence were used to show the sensing signals using mini instruments [ [132] , [133] , [134] , [135] ].…”

Section: Mini Electrochemistry Test Platformsmentioning

confidence: 99%

Achieving broad availability of SARS-CoV-2 detections via smartphone-based analysis

Sun

Mei

et al. 2023

TrAC Trends in Analytical Chemistry

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“…Nucleocapsid (N), spike (S), and matrix (M) is mainly antigens applied to recognize coronaviruses. To diagnose SARS-CoV-2, various kinds of electrochemical techniques have been applied [70] . Graphene and its derivatives have been discovered to detect viral pathogens, such as Ebola, Zika, human immunodeficiency virus (HIV), human papillomavirus (HPV), etc.…”

Section: Carbon-based Nanomaterials Against Sars-cov-2: Synthesis Dia...mentioning

confidence: 99%

Carbon-based nanomaterials against SARS-CoV-2: Therapeutic and diagnostic applications

et al. 2023

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Electrochemical biosensors for SARS-CoV-2 detection: Voltametric or impedimetric transduction?

Cited by 24 publications

References 68 publications

A Novel Electrochemical Immunosensor Based on Anti-IgY and PLA/PEG Nanofibrous Mats Used for Allergens Detection in Farinaceous Products

A Novel Electrochemical Immunosensor Based on Anti-IgY and PLA/PEG Nanofibrous Mats Used for Allergens Detection in Farinaceous Products

Achieving broad availability of SARS-CoV-2 detections via smartphone-based analysis

Carbon-based nanomaterials against SARS-CoV-2: Therapeutic and diagnostic applications

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