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Quantum dots-based lateral flow immunoassay combined with image analysis for semiquantitative detection of IgE antibody to mite

Authors Zhao Y, Zhang Q, Meng Q, Wu F, Zhang L, Tang Y, Guan Y, An L

Received 12 February 2017

Accepted for publication 23 May 2017

Published 4 July 2017 Volume 2017:12 Pages 4805—4812


Checked for plagiarism Yes

Review by Single anonymous peer review

Peer reviewer comments 2

Editor who approved publication: Dr Linlin Sun

Yan Zhao,1,* Qiang Zhang,2,* Qingfeng Meng,3 Fenglian Wu,4 Lihua Zhang,1 Yao Tang,1 Yuanyuan Guan,1 Lixin An1

1Department of Allergy, The First Affiliated Hospital, Harbin Medical University, Harbin, 2Department of Otorhinolaryngology Head and Neck Surgery, The Affiliated Yantai Yuhuangding Hospital, Qingdao University, Yantai, 3Department of Ophthalmology, The First Affiliated Hospital, Harbin Medical University, Harbin, 4Department of Burn and Plastic Surgery, The First Affiliated Hospital of Qinhuangdao, Qinhuangdao, People’s Republic of China

*These authors contributed equally to this work

Abstract: Semiquantitative and rapid detection of specific IgE (sIgE) with well clinical relevance to house dust mite (HDM) are promising for prevalence rhinitis and asthma patients due to the increasing air pollution. However, the conventional IgE measurement systems are time-consuming, complicated and require special instruments. Herein, we overcome the above limitations of sIgE to HDM detection system by developing a quantum dot nanobeads-based lateral flow immunoassay and an image analysis procedure. The proposed detection system could semiquantitatively measure the IgE in a linear range of 0.2–10 U/mL. Moreover, there is a well correlation between the developed detection system and the clinical symptoms by a comparison study using 56 positive patients’ sera and 40 healthy control sera. The proposed detection system is simple, robust and easy-to-use and promising for in home test.

Keywords: lateral flow immunoassay, quantum dots, house dust mite, IgE

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