A label-free electrochemical aptasensor based on AuNPs-loaded zeolitic imidazolate framework-8 for sensitive determination of aflatoxin B1
Copyright © 2022 Elsevier Ltd. All rights reserved..
In this study, an electrochemical aptasensor for sensitive detection of aflatoxin B1 (AFB1) was fabricated by electrodepositing gold nanoparticles (AuNPs) on the glass carbon electrode (GCE) modified with zeolitic imidazolate framework-8 (ZIF-8). The high specific surface area of AuNPs/ZIF-8 nanocomposite increased the aptamers loading on the electrode surface. When compared to other previously reported sensors, the developed aptasensor exhibited a wider linear range of 10.0 to 1.0 × 105 pg/mL with a lower limit of detection (LOD) of 1.82 pg/mL under the optimized conditions. Furthermore, the obtained results revealed that the constructed aptasensor exhibited outstanding selectivity, reproducibility and stability. Moreover, the aptasensor was successfully employed to detect the AFB1 in corn oil and peanut oil samples, with recoveries ranging from 93.49% to 106.9%, demonstrating the potential application value of this methodology.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2022 |
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| Erschienen: |
2022 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:384 |
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| Enthalten in: |
Food chemistry - 384(2022) vom: 01. Aug., Seite 132495 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Zhong, Tingting [VerfasserIn] |
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| Links: |
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| Themen: |
1318-02-1 |
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| Anmerkungen: |
Date Completed 12.04.2022 Date Revised 12.04.2022 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1016/j.foodchem.2022.132495 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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NLM337246971 |
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| 245 | 1 | 2 | |a A label-free electrochemical aptasensor based on AuNPs-loaded zeolitic imidazolate framework-8 for sensitive determination of aflatoxin B1 |
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| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a Copyright © 2022 Elsevier Ltd. All rights reserved. | ||
| 520 | |a In this study, an electrochemical aptasensor for sensitive detection of aflatoxin B1 (AFB1) was fabricated by electrodepositing gold nanoparticles (AuNPs) on the glass carbon electrode (GCE) modified with zeolitic imidazolate framework-8 (ZIF-8). The high specific surface area of AuNPs/ZIF-8 nanocomposite increased the aptamers loading on the electrode surface. When compared to other previously reported sensors, the developed aptasensor exhibited a wider linear range of 10.0 to 1.0 × 105 pg/mL with a lower limit of detection (LOD) of 1.82 pg/mL under the optimized conditions. Furthermore, the obtained results revealed that the constructed aptasensor exhibited outstanding selectivity, reproducibility and stability. Moreover, the aptasensor was successfully employed to detect the AFB1 in corn oil and peanut oil samples, with recoveries ranging from 93.49% to 106.9%, demonstrating the potential application value of this methodology | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Aflatoxin B1 | |
| 650 | 4 | |a Electrochemical aptasensor | |
| 650 | 4 | |a Gold nanoparticles | |
| 650 | 4 | |a Zeolitic imidazolate framework-8 | |
| 650 | 7 | |a Aptamers, Nucleotide |2 NLM | |
| 650 | 7 | |a Zeolites |2 NLM | |
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| 700 | 1 | |a Li, Shanshan |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Xin |e verfasserin |4 aut | |
| 700 | 1 | |a JiYe, Yishang |e verfasserin |4 aut | |
| 700 | 1 | |a Mo, Yuanyuan |e verfasserin |4 aut | |
| 700 | 1 | |a Chen, Liying |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Zhiqing |e verfasserin |4 aut | |
| 700 | 1 | |a Wu, Hejun |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Meiliang |e verfasserin |4 aut | |
| 700 | 1 | |a Luo, Qingying |e verfasserin |4 aut | |
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