Antibiotic-enzyme-inorganic nanoflowers based immunoassay for the ultrasensitive detection of Staphylococcus aureus
Copyright © 2023 Elsevier B.V. All rights reserved..
In this work, we constructed a moderate and convenient approach for the determination of staphylococcus aureus (S. aureus) by using organic-inorganic flower-like hybrid nanoflowers and Pig IgG together in an enzyme-linked immunosorbent assay (ELISA) system. To ensure efficient capture, the hybrid nanoflowers were prepared by encapsulating horseradish peroxidase (HRP) and vancomycin (VAN) in the inorganic nanocrystal composites (calcium ion solution), just like the mimic biomineralization process. Owing to the self-assembly technique, the synthesized VAN-HRP-CaHPO4 nanoflowers (NFs) can not only retain the ability to particularly capture the gram-positive bacteria but also enhance the stability and enzymatic activity to achieve the signal output amplification. Then, taking advantage of the integration of signal amplification elements (HRP) and biorecognition unit (VAN), the VAN-HRP-CaHPO4 NFs were utilized as a new kind of capture & signal regent in the procedure of S. aureus detection. Based on this ELISA system, S. aureus could be clearly detected within the concentration ranging from 1.0 × 102 to 1.0 × 107 CFU mL-1. The detection limit was defined as 4.3 CFU mL-1, which performance is superior to some commercial ELISA kits. Additionally, this system detected the S. aureus in food samples and showed an acceptable recovery. As a cost-effective and sensitive platform, this proposed assay was enable to fulfill the requirement of a quick and effective detection of S. aureus.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2023 |
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| Erschienen: |
2023 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:230 |
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| Enthalten in: |
Biosensors & bioelectronics - 230(2023) vom: 15. Juni, Seite 115264 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Zhao, Man [VerfasserIn] |
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| Links: |
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| Themen: |
6Q205EH1VU |
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| Anmerkungen: |
Date Completed 17.04.2023 Date Revised 17.04.2023 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1016/j.bios.2023.115264 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| 520 | |a In this work, we constructed a moderate and convenient approach for the determination of staphylococcus aureus (S. aureus) by using organic-inorganic flower-like hybrid nanoflowers and Pig IgG together in an enzyme-linked immunosorbent assay (ELISA) system. To ensure efficient capture, the hybrid nanoflowers were prepared by encapsulating horseradish peroxidase (HRP) and vancomycin (VAN) in the inorganic nanocrystal composites (calcium ion solution), just like the mimic biomineralization process. Owing to the self-assembly technique, the synthesized VAN-HRP-CaHPO4 nanoflowers (NFs) can not only retain the ability to particularly capture the gram-positive bacteria but also enhance the stability and enzymatic activity to achieve the signal output amplification. Then, taking advantage of the integration of signal amplification elements (HRP) and biorecognition unit (VAN), the VAN-HRP-CaHPO4 NFs were utilized as a new kind of capture & signal regent in the procedure of S. aureus detection. Based on this ELISA system, S. aureus could be clearly detected within the concentration ranging from 1.0 × 102 to 1.0 × 107 CFU mL-1. The detection limit was defined as 4.3 CFU mL-1, which performance is superior to some commercial ELISA kits. Additionally, this system detected the S. aureus in food samples and showed an acceptable recovery. As a cost-effective and sensitive platform, this proposed assay was enable to fulfill the requirement of a quick and effective detection of S. aureus | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Enzyme-linked immunosorbent assay | |
| 650 | 4 | |a Hybrid nanoflowers | |
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| 650 | 4 | |a S. aureus | |
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| 700 | 1 | |a Li, Jiawei |e verfasserin |4 aut | |
| 700 | 1 | |a Hu, Hulan |e verfasserin |4 aut | |
| 700 | 1 | |a Ren, Jing |e verfasserin |4 aut | |
| 700 | 1 | |a Xu, Jingke |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, Jianlong |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Daohong |e verfasserin |4 aut | |
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