Rapid Quantification of SARS-Cov-2 Spike Protein Enhanced with a Machine Learning Technique Integrated in a Smart and Portable Immunosensor

An IoT-WiFi smart and portable electrochemical immunosensor for the quantification of SARS-CoV-2 spike protein was developed with integrated machine learning features. The immunoenzymatic sensor is based on the immobilization of monoclonal antibodies directed at the SARS-CoV-2 S1 subunit on Screen-P...

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Main Authors: Simone Fortunati, Chiara Giliberti, Marco Giannetto, Angelo Bolchi, Davide Ferrari, Gaetano Donofrio, Valentina Bianchi, Andrea Boni, Ilaria De Munari, Maria Careri
Format: Article
Language:English
Published: MDPI AG 2022-06-01
Series:Biosensors
Subjects:
Online Access:https://www.mdpi.com/2079-6374/12/6/426
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author Simone Fortunati
Chiara Giliberti
Marco Giannetto
Angelo Bolchi
Davide Ferrari
Gaetano Donofrio
Valentina Bianchi
Andrea Boni
Ilaria De Munari
Maria Careri
author_facet Simone Fortunati
Chiara Giliberti
Marco Giannetto
Angelo Bolchi
Davide Ferrari
Gaetano Donofrio
Valentina Bianchi
Andrea Boni
Ilaria De Munari
Maria Careri
author_sort Simone Fortunati
collection DOAJ
description An IoT-WiFi smart and portable electrochemical immunosensor for the quantification of SARS-CoV-2 spike protein was developed with integrated machine learning features. The immunoenzymatic sensor is based on the immobilization of monoclonal antibodies directed at the SARS-CoV-2 S1 subunit on Screen-Printed Electrodes functionalized with gold nanoparticles. The analytical protocol involves a single-step sample incubation. Immunosensor performance was validated in a viral transfer medium which is commonly used for the desorption of nasopharyngeal swabs. Remarkable specificity of the response was demonstrated by testing H1N1 Hemagglutinin from swine-origin influenza A virus and Spike Protein S1 from Middle East respiratory syndrome coronavirus. Machine learning was successfully used for data processing and analysis. Different support vector machine classifiers were evaluated, proving that algorithms affect the classifier accuracy. The test accuracy of the best classification model in terms of true positive/true negative sample classification was 97.3%. In addition, the ML algorithm can be easily integrated into cloud-based portable Wi-Fi devices. Finally, the immunosensor was successfully tested using a third generation replicating incompetent lentiviral vector pseudotyped with SARS-CoV-2 spike glycoprotein, thus proving the applicability of the immunosensor to whole virus detection.
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spelling doaj.art-7d635f037fd3453686613040bfcaff662023-11-23T15:49:23ZengMDPI AGBiosensors2079-63742022-06-0112642610.3390/bios12060426Rapid Quantification of SARS-Cov-2 Spike Protein Enhanced with a Machine Learning Technique Integrated in a Smart and Portable ImmunosensorSimone Fortunati0Chiara Giliberti1Marco Giannetto2Angelo Bolchi3Davide Ferrari4Gaetano Donofrio5Valentina Bianchi6Andrea Boni7Ilaria De Munari8Maria Careri9Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale, Università di Parma, Parco Area delle Scienze 17/A, 43124 Parma, ItalyDipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale, Università di Parma, Parco Area delle Scienze 17/A, 43124 Parma, ItalyDipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale, Università di Parma, Parco Area delle Scienze 17/A, 43124 Parma, ItalyDipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale, Università di Parma, Parco Area delle Scienze 17/A, 43124 Parma, ItalyDipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale, Università di Parma, Parco Area delle Scienze 17/A, 43124 Parma, ItalyDipartimento di Scienze Medico-Veterinarie, Università di Parma, Strada del Taglio 10, 43126 Parma, ItalyDipartimento di Ingegneria e Architettura, Università di Parma, Parco Area delle Scienze 181/A, 43124 Parma, ItalyDipartimento di Ingegneria e Architettura, Università di Parma, Parco Area delle Scienze 181/A, 43124 Parma, ItalyDipartimento di Ingegneria e Architettura, Università di Parma, Parco Area delle Scienze 181/A, 43124 Parma, ItalyDipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale, Università di Parma, Parco Area delle Scienze 17/A, 43124 Parma, ItalyAn IoT-WiFi smart and portable electrochemical immunosensor for the quantification of SARS-CoV-2 spike protein was developed with integrated machine learning features. The immunoenzymatic sensor is based on the immobilization of monoclonal antibodies directed at the SARS-CoV-2 S1 subunit on Screen-Printed Electrodes functionalized with gold nanoparticles. The analytical protocol involves a single-step sample incubation. Immunosensor performance was validated in a viral transfer medium which is commonly used for the desorption of nasopharyngeal swabs. Remarkable specificity of the response was demonstrated by testing H1N1 Hemagglutinin from swine-origin influenza A virus and Spike Protein S1 from Middle East respiratory syndrome coronavirus. Machine learning was successfully used for data processing and analysis. Different support vector machine classifiers were evaluated, proving that algorithms affect the classifier accuracy. The test accuracy of the best classification model in terms of true positive/true negative sample classification was 97.3%. In addition, the ML algorithm can be easily integrated into cloud-based portable Wi-Fi devices. Finally, the immunosensor was successfully tested using a third generation replicating incompetent lentiviral vector pseudotyped with SARS-CoV-2 spike glycoprotein, thus proving the applicability of the immunosensor to whole virus detection.https://www.mdpi.com/2079-6374/12/6/426machine learningSARS-CoV-2COVID-19electrochemical immunosensorIoT-WiFipoint of care testing
spellingShingle Simone Fortunati
Chiara Giliberti
Marco Giannetto
Angelo Bolchi
Davide Ferrari
Gaetano Donofrio
Valentina Bianchi
Andrea Boni
Ilaria De Munari
Maria Careri
Rapid Quantification of SARS-Cov-2 Spike Protein Enhanced with a Machine Learning Technique Integrated in a Smart and Portable Immunosensor
Biosensors
machine learning
SARS-CoV-2
COVID-19
electrochemical immunosensor
IoT-WiFi
point of care testing
title Rapid Quantification of SARS-Cov-2 Spike Protein Enhanced with a Machine Learning Technique Integrated in a Smart and Portable Immunosensor
title_full Rapid Quantification of SARS-Cov-2 Spike Protein Enhanced with a Machine Learning Technique Integrated in a Smart and Portable Immunosensor
title_fullStr Rapid Quantification of SARS-Cov-2 Spike Protein Enhanced with a Machine Learning Technique Integrated in a Smart and Portable Immunosensor
title_full_unstemmed Rapid Quantification of SARS-Cov-2 Spike Protein Enhanced with a Machine Learning Technique Integrated in a Smart and Portable Immunosensor
title_short Rapid Quantification of SARS-Cov-2 Spike Protein Enhanced with a Machine Learning Technique Integrated in a Smart and Portable Immunosensor
title_sort rapid quantification of sars cov 2 spike protein enhanced with a machine learning technique integrated in a smart and portable immunosensor
topic machine learning
SARS-CoV-2
COVID-19
electrochemical immunosensor
IoT-WiFi
point of care testing
url https://www.mdpi.com/2079-6374/12/6/426
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