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Lectin functionalized ZnO nanoarrays as a 3D nano-biointerface for bacterial detection
Zheng, Laibao1,2; Wan, Yi1; Qi, Peng1; Sun, Yan1; Zhang, Dun1; Yu, Liangmin3,4
2017-05-15
发表期刊TALANTA
卷号167页码:600-606
文章类型Article
摘要The detection of pathogenic bacteria is essential in various fields, such as food safety, water environmental analysis, or clinical diagnosis. Although rapid and selective techniques have been achieved based on the fast and specific binding of recognitions elements and target, the sensitive detection of bacterial pathogens was limited by their low targets-binding efficiency. The three-dimensional (3D) nano-biointerface, compared with the two-dimensional (2D) flat substrate, has a much higher binding capacity, which can offer more reactive sites to bind with bacterial targets, resulting in a great improvement of detection sensitivity. Herein, a lectin functionalized ZnO nanorod (ZnO-NR) array has been fabricated and employed as a 3D nano-biointerface for Escherichia coli (E. con) capture and detection by multivalent binding of concanavalin A (ConA) with polysaccharides on the cellular surface of E. coli. The 3D lectin functionalized ZnO-NR array-based assay shows reasonable detection limit and efficiently expanded linear range (1.0x10(3) to 1.0x10(7) cfu mL(-1)) for pathogen detection. The platform has a potential for further applications and provides an excellent sensitivity approach for detection of pathogenic bacteria.
关键词3d Nano-interface Zno-nr Arrays Lectin Functionalization Bacterial Detection
DOI10.1016/j.talanta.2017.03.007
收录类别SCI
语种英语
WOS记录号WOS:000399511600075
引用统计
被引频次:5[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
版本出版稿
条目标识符http://ir.qdio.ac.cn/handle/337002/136699
专题海洋腐蚀与防护研究发展中心
作者单位1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Environm Corros & Biofouling, Qingdao 266071, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China
3.Ocean Univ China, Key Lab Marine Chem Theory & Technol, Minist Educ, Qingdao 266100, Peoples R China
4.Ocean Univ China, Qingdao Collaborat Innovat Ctr Marine Sci & Techn, Qingdao 266100, Peoples R China
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Zheng, Laibao,Wan, Yi,Qi, Peng,et al. Lectin functionalized ZnO nanoarrays as a 3D nano-biointerface for bacterial detection[J]. TALANTA,2017,167:600-606.
APA Zheng, Laibao,Wan, Yi,Qi, Peng,Sun, Yan,Zhang, Dun,&Yu, Liangmin.(2017).Lectin functionalized ZnO nanoarrays as a 3D nano-biointerface for bacterial detection.TALANTA,167,600-606.
MLA Zheng, Laibao,et al."Lectin functionalized ZnO nanoarrays as a 3D nano-biointerface for bacterial detection".TALANTA 167(2017):600-606.
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