Electrochemical Immunosensor for Detection of IgY in Food and Food Supplements

Immunoglobulin Y is a water-soluble protein present in high concentration in hen serum and egg yolk. IgY has applications in many fields, e.g., from food stuff to the mass production of antibodies. In this work, we have implemented an electrochemical immunosensor for IgY based on templated nanoelect...

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Main Authors: Chiara Gaetani, Emmanuele Ambrosi, Paolo Ugo, Ligia M. Moretto
Format: Article
Language:English
Published: MDPI AG 2017-03-01
Series:Chemosensors
Subjects:
Online Access:http://www.mdpi.com/2227-9040/5/1/10
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author Chiara Gaetani
Emmanuele Ambrosi
Paolo Ugo
Ligia M. Moretto
author_facet Chiara Gaetani
Emmanuele Ambrosi
Paolo Ugo
Ligia M. Moretto
author_sort Chiara Gaetani
collection DOAJ
description Immunoglobulin Y is a water-soluble protein present in high concentration in hen serum and egg yolk. IgY has applications in many fields, e.g., from food stuff to the mass production of antibodies. In this work, we have implemented an electrochemical immunosensor for IgY based on templated nanoelectrodes ensembles. IgY is captured by the templating polycarbonate and reacted with anti-IgY labeled with horseradish peroxidase. In the presence of H2O2 and methylene blue as the redox mediator, an electrocatalytic current is generated which scales with IgY concentration in the sample. After optimizing the extracting procedure, the immunosensor was applied for analysis of fresh eggs and food integrators. The data obtained with the biosensor were validated by SDS-PAGE and Western blot measurements.
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spelling doaj.art-d86dd5a99fdd43939fec620c02521f942022-12-22T00:08:19ZengMDPI AGChemosensors2227-90402017-03-01511010.3390/chemosensors5010010chemosensors5010010Electrochemical Immunosensor for Detection of IgY in Food and Food SupplementsChiara Gaetani0Emmanuele Ambrosi1Paolo Ugo2Ligia M. Moretto3Department of Molecular Sciences and Nanosystems, University Ca’ Foscari of Venice, 30174 Venice, ItalyDepartment of Molecular Sciences and Nanosystems, University Ca’ Foscari of Venice, 30174 Venice, ItalyDepartment of Molecular Sciences and Nanosystems, University Ca’ Foscari of Venice, 30174 Venice, ItalyDepartment of Molecular Sciences and Nanosystems, University Ca’ Foscari of Venice, 30174 Venice, ItalyImmunoglobulin Y is a water-soluble protein present in high concentration in hen serum and egg yolk. IgY has applications in many fields, e.g., from food stuff to the mass production of antibodies. In this work, we have implemented an electrochemical immunosensor for IgY based on templated nanoelectrodes ensembles. IgY is captured by the templating polycarbonate and reacted with anti-IgY labeled with horseradish peroxidase. In the presence of H2O2 and methylene blue as the redox mediator, an electrocatalytic current is generated which scales with IgY concentration in the sample. After optimizing the extracting procedure, the immunosensor was applied for analysis of fresh eggs and food integrators. The data obtained with the biosensor were validated by SDS-PAGE and Western blot measurements.http://www.mdpi.com/2227-9040/5/1/10immunoglobulin Yegg yolknanoelectrodes ensembleselectrochemical immunosensorfood supplementsSDS-PAGE
spellingShingle Chiara Gaetani
Emmanuele Ambrosi
Paolo Ugo
Ligia M. Moretto
Electrochemical Immunosensor for Detection of IgY in Food and Food Supplements
Chemosensors
immunoglobulin Y
egg yolk
nanoelectrodes ensembles
electrochemical immunosensor
food supplements
SDS-PAGE
title Electrochemical Immunosensor for Detection of IgY in Food and Food Supplements
title_full Electrochemical Immunosensor for Detection of IgY in Food and Food Supplements
title_fullStr Electrochemical Immunosensor for Detection of IgY in Food and Food Supplements
title_full_unstemmed Electrochemical Immunosensor for Detection of IgY in Food and Food Supplements
title_short Electrochemical Immunosensor for Detection of IgY in Food and Food Supplements
title_sort electrochemical immunosensor for detection of igy in food and food supplements
topic immunoglobulin Y
egg yolk
nanoelectrodes ensembles
electrochemical immunosensor
food supplements
SDS-PAGE
url http://www.mdpi.com/2227-9040/5/1/10
work_keys_str_mv AT chiaragaetani electrochemicalimmunosensorfordetectionofigyinfoodandfoodsupplements
AT emmanueleambrosi electrochemicalimmunosensorfordetectionofigyinfoodandfoodsupplements
AT paolougo electrochemicalimmunosensorfordetectionofigyinfoodandfoodsupplements
AT ligiammoretto electrochemicalimmunosensorfordetectionofigyinfoodandfoodsupplements