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Combining phagomagnetic separation with immunoassay for specific, fast and sensitive detection of staphylococcus aureus

文献类型:期刊论文

作者Yan, Chenghui1,2; Zhang, Yun1,2,3; Yang, Hang1; Yu, Junping1; Wei, Hongping1,4
刊名Talanta
出版日期2017-08-01
卷号170页码:291-297
关键词Staphylococcus aureus Magnetic separation Bacteriophage Detection Specificity
ISSN号0039-9140
DOI10.1016/j.talanta.2017.04.007
通讯作者Yu, junping(yujp@wh.iov.cn) ; Wei, hongping(hpwei@wh.iov.cn)
英文摘要A staphylococcus aureus (s. aureus)-specific lytic bacteriophage p-s. aureus-9, isolated from an environmental water sample, was assembled on magnetic beads for capturing s. aureus from samples through magnetic separation. horseradish peroxidase (hrp) labeled immunoglobulin (igg) antibodies were used to detect the captured s. aureus by reacting with protein a on s. aureus followed by colorimetric signals, which were generated from the catalytic reaction between hrp and the substrate 3,3',5,5'-tetramethylbenzidine (tmb). under optimal conditions, the calibration curve was linear from 1.0x10(4) to 1.0x10(6) cfu ml(-1). the limit of detection (lod) for the assay was 2.47x10(3) cfu mirl and 8.86x10(3) cfu ml(-1) of s. aureus in pbs and apple juice, respectively. moreover, the whole assay revealed outstanding specificity towards s. aureus, without any interference of common pathogenic bacteria, and can be completed within 90 min without any pre-enrichment. as far as known, it was the first time to detect s. aureus based on the double site recognition of bacteriophage and mammal igg. the novel approach has shown good potentials for a rapid, specific, cheap and simple detection of s. aureus in food samples.
WOS关键词PATHOGEN DETECTION ; RAPID DETECTION ; BACTERIA ; BIOSENSORS ; NANOPARTICLES ; FOOD ; AMPLIFICATION ; SEDIMENTATION ; RECOGNITION ; LATEX
WOS研究方向Chemistry
WOS类目Chemistry, Analytical
语种英语
WOS记录号WOS:000402343200040
出版者ELSEVIER SCIENCE BV
URI标识http://www.irgrid.ac.cn/handle/1471x/2373429
专题武汉病毒研究所
通讯作者Yu, Junping; Wei, Hongping
作者单位1.Chinese Acad Sci, Key Lab Special Pathogens & Biosafety, Wuhan Inst Virol, Wuhan 430071, Hubei, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China
3.Xinxiang Med Univ, Henan Collaborat Innovat Ctr Mol Diag & Lab Med, Sch Lab Med, Xinxiang 453003, Henan, Peoples R China
4.Chinese Acad Sci, Sinoafrica Joint Res Ctr, Wuhan 430074, Peoples R China
推荐引用方式
GB/T 7714
Yan, Chenghui,Zhang, Yun,Yang, Hang,et al. Combining phagomagnetic separation with immunoassay for specific, fast and sensitive detection of staphylococcus aureus[J]. Talanta,2017,170:291-297.
APA Yan, Chenghui,Zhang, Yun,Yang, Hang,Yu, Junping,&Wei, Hongping.(2017).Combining phagomagnetic separation with immunoassay for specific, fast and sensitive detection of staphylococcus aureus.Talanta,170,291-297.
MLA Yan, Chenghui,et al."Combining phagomagnetic separation with immunoassay for specific, fast and sensitive detection of staphylococcus aureus".Talanta 170(2017):291-297.

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来源:武汉病毒研究所

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