New Stochastic Sensors for Simultaneous Determination of Ochratoxin A, and of Aflatoxins B1 and M1 in Food and Biological Samples
Three stochastic sensors based on a nanographene/ferric oxide nanoparticles matrix modified with maltodextrins I (DE 4.0–7.0), II (DE 13.0–17.0), and III (DE 16.5–19.5) can simultaneously determine mycotoxins like aflatoxin B1 (AFB1), M1 (AFM1), and OTA in coffee, milk, grape juice, and biological s...
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IOP Publishing
2024-01-01
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| Series: | ECS Sensors Plus |
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| Online Access: | https://doi.org/10.1149/2754-2726/ad9f7f |
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| author | Raluca-Ioana Stefan-van Staden Cristina Bianca Ion Jacobus (Koos) Frederick van Staden Catalina Cioates Negut Ruxandra-Maria Ilie-Mihai |
| author_facet | Raluca-Ioana Stefan-van Staden Cristina Bianca Ion Jacobus (Koos) Frederick van Staden Catalina Cioates Negut Ruxandra-Maria Ilie-Mihai |
| author_sort | Raluca-Ioana Stefan-van Staden |
| collection | DOAJ |
| description | Three stochastic sensors based on a nanographene/ferric oxide nanoparticles matrix modified with maltodextrins I (DE 4.0–7.0), II (DE 13.0–17.0), and III (DE 16.5–19.5) can simultaneously determine mycotoxins like aflatoxin B1 (AFB1), M1 (AFM1), and OTA in coffee, milk, grape juice, and biological samples like whole blood, saliva, urine, and breast milk. The sensors’ response properties were established at two pH levels to suit sample native pH values. At pH 3.00, the sensor based on MDIII had the highest sensitivity (3.57 × 10 ^8 s ^−1 mol ^−1 l) for OTA assay, while the sensor based on MDI had the widest working concentration range (1 × 10 ^–18 –1 × 10 ^–5 mol l ^−1 ). The sensor based on MDIII had the highest sensitivity (1.45 × 10 ^10 s ^−1 mol ^−1 l) for AFB1 assay. At pH 7.40, the sensor based on MDII had the highest sensitivity (7.73 × 10 ^10 s ^−1 mol ^−1 l) for OTA assay, while the sensor based on MDIII had the widest working concentration range (1 × 10 ^–18 –1 × 10 ^–3 mol l ^−1 ). For AFB1, the sensor based on MDIII had the highest sensitivity (4.66 × 10 ^11 s ^−1 mol ^−1 l) and the wider working concentration range (1 × 10 ^–16 –1 × 10 ^–10 mol l ^−1 ). The recovery results (greater than 97.00%, RSD values below 1.00%) showed that the approach can simultaneously analyse the three mycotoxins in food and biological samples. |
| format | Article |
| id | doaj-art-ef2a9452137d485aadca40859c3adafe |
| institution | DOAJ |
| issn | 2754-2726 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | ECS Sensors Plus |
| spelling | doaj-art-ef2a9452137d485aadca40859c3adafe2025-08-20T02:50:47ZengIOP PublishingECS Sensors Plus2754-27262024-01-013404280110.1149/2754-2726/ad9f7fNew Stochastic Sensors for Simultaneous Determination of Ochratoxin A, and of Aflatoxins B1 and M1 in Food and Biological SamplesRaluca-Ioana Stefan-van Staden0https://orcid.org/0000-0001-8244-2483Cristina Bianca Ion1https://orcid.org/0000-0002-5691-8887Jacobus (Koos) Frederick van Staden2https://orcid.org/0000-0002-9684-005XCatalina Cioates Negut3https://orcid.org/0000-0001-7307-0075Ruxandra-Maria Ilie-Mihai4https://orcid.org/0000-0002-2285-9583Laboratory of Electrochemistry and PATLAB, National Institute of Research for Electrochemistry and Condensed Matter , 202 Splaiul Independentei Street, 060021 Bucharest-6, RomaniaLaboratory of Electrochemistry and PATLAB, National Institute of Research for Electrochemistry and Condensed Matter , 202 Splaiul Independentei Street, 060021 Bucharest-6, RomaniaLaboratory of Electrochemistry and PATLAB, National Institute of Research for Electrochemistry and Condensed Matter , 202 Splaiul Independentei Street, 060021 Bucharest-6, RomaniaLaboratory of Electrochemistry and PATLAB, National Institute of Research for Electrochemistry and Condensed Matter , 202 Splaiul Independentei Street, 060021 Bucharest-6, RomaniaLaboratory of Electrochemistry and PATLAB, National Institute of Research for Electrochemistry and Condensed Matter , 202 Splaiul Independentei Street, 060021 Bucharest-6, RomaniaThree stochastic sensors based on a nanographene/ferric oxide nanoparticles matrix modified with maltodextrins I (DE 4.0–7.0), II (DE 13.0–17.0), and III (DE 16.5–19.5) can simultaneously determine mycotoxins like aflatoxin B1 (AFB1), M1 (AFM1), and OTA in coffee, milk, grape juice, and biological samples like whole blood, saliva, urine, and breast milk. The sensors’ response properties were established at two pH levels to suit sample native pH values. At pH 3.00, the sensor based on MDIII had the highest sensitivity (3.57 × 10 ^8 s ^−1 mol ^−1 l) for OTA assay, while the sensor based on MDI had the widest working concentration range (1 × 10 ^–18 –1 × 10 ^–5 mol l ^−1 ). The sensor based on MDIII had the highest sensitivity (1.45 × 10 ^10 s ^−1 mol ^−1 l) for AFB1 assay. At pH 7.40, the sensor based on MDII had the highest sensitivity (7.73 × 10 ^10 s ^−1 mol ^−1 l) for OTA assay, while the sensor based on MDIII had the widest working concentration range (1 × 10 ^–18 –1 × 10 ^–3 mol l ^−1 ). For AFB1, the sensor based on MDIII had the highest sensitivity (4.66 × 10 ^11 s ^−1 mol ^−1 l) and the wider working concentration range (1 × 10 ^–16 –1 × 10 ^–10 mol l ^−1 ). The recovery results (greater than 97.00%, RSD values below 1.00%) showed that the approach can simultaneously analyse the three mycotoxins in food and biological samples.https://doi.org/10.1149/2754-2726/ad9f7fmycotoxinmaltodextrinstochastic sensor |
| spellingShingle | Raluca-Ioana Stefan-van Staden Cristina Bianca Ion Jacobus (Koos) Frederick van Staden Catalina Cioates Negut Ruxandra-Maria Ilie-Mihai New Stochastic Sensors for Simultaneous Determination of Ochratoxin A, and of Aflatoxins B1 and M1 in Food and Biological Samples ECS Sensors Plus mycotoxin maltodextrin stochastic sensor |
| title | New Stochastic Sensors for Simultaneous Determination of Ochratoxin A, and of Aflatoxins B1 and M1 in Food and Biological Samples |
| title_full | New Stochastic Sensors for Simultaneous Determination of Ochratoxin A, and of Aflatoxins B1 and M1 in Food and Biological Samples |
| title_fullStr | New Stochastic Sensors for Simultaneous Determination of Ochratoxin A, and of Aflatoxins B1 and M1 in Food and Biological Samples |
| title_full_unstemmed | New Stochastic Sensors for Simultaneous Determination of Ochratoxin A, and of Aflatoxins B1 and M1 in Food and Biological Samples |
| title_short | New Stochastic Sensors for Simultaneous Determination of Ochratoxin A, and of Aflatoxins B1 and M1 in Food and Biological Samples |
| title_sort | new stochastic sensors for simultaneous determination of ochratoxin a and of aflatoxins b1 and m1 in food and biological samples |
| topic | mycotoxin maltodextrin stochastic sensor |
| url | https://doi.org/10.1149/2754-2726/ad9f7f |
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