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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Wang, Qi Wang, Beibei Ma, Meihu Cai, Zhaoxia |
| Description | Country affiliation: China Author Affiliation: Wang B ( National R&D Center for Egg Processing, Food Science and Technology College, Huazhong Agricultural University, 1 Shizishan Street, Wuhan, Hubei 430070, China.); Wang Q ( National R&D Center for Egg Processing, Food Science and Technology College, Huazhong Agricultural University, 1 Shizishan Street, Wuhan, Hubei 430070, China.); Ma M ( National R&D Center for Egg Processing, Food Science and Technology College, Huazhong Agricultural University, 1 Shizishan Street, Wuhan, Hubei 430070, China.); Cai Z ( National R&D Center for Egg Processing, Food Science and Technology College, Huazhong Agricultural University, 1 Shizishan Street, Wuhan, Hubei 430070, China. Electronic address: caizhaoxia@mail.hzau.edu.cn.) |
| Abstract | In this paper, we constructed the fluorescence resonance energy transfer (FRET) system between two multi-color quantum dots (QDs) of two sizes for rapid and sensitive detection of Staphylococcus aureus. In this system, green-emitting QDs conjugated with rabbit anti-S. aureus antibodies were used as energy donors while orange-emitting QDs conjugated with goat-anti-rabbit IgG were used as energy acceptors to form FRET system. Pre-binding of Staphylococcus aureus (S. aureus) on the donor occupied the binding sites and thus blocked resonance energy transfer between two colors QDs, leading to the quenching fluorescence of the acceptor. The fluorescence of acceptor has a linear calibration graph with the concentrations of S. aureus from 52 to 2.6×10(5) CFU mL(-1). The low detection limit was 10 CFU/mL. It was worth mentioning that the detection method of S. aureus had been applied to the analysis of apple juice and milk samples, which could potentially be developed into a sensor in the further study. |
| ISSN | 13861425 |
| Volume Number | 135 |
| e-ISSN | 18733557 |
| Journal | Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2015-01-25 |
| Publisher Place | Great Britain (UK) |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Fluorescence Resonance Energy Transfer Methods Quantum Dots Chemistry Staphylococcus Aureus Isolation & Purification Animals Beverages Microbiology Limit Of Detection Milk Particle Size Rabbits Journal Article Research Support, Non-u.s. Gov't Discipline Spectroscopy |
| Content Type | Text |
| Resource Type | Article |
| Subject | Spectroscopy Atomic and Molecular Physics, and Optics Analytical Chemistry Instrumentation |
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