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Quartz crystal microbalance based biosensor for rapid and sensitive detection of maize chlorotic mottle virus
Journal article   Peer reviewed

Quartz crystal microbalance based biosensor for rapid and sensitive detection of maize chlorotic mottle virus

Xin Huang, Jianmin Xu, Hai-Feng Ji, Guifen Li and Hongjun Chen
Analytical methods, v 6(13), pp 4530-4536
01 Jan 2014

Abstract

Chemistry Chemistry, Analytical Food Science & Technology Life Sciences & Biomedicine Physical Sciences Science & Technology Spectroscopy Technology
In this work, we report a biosensor based on a quartz crystal microbalance ( QCM) for the selective and sensitive detection of maize chlorotic mottle virus (MCMV). A mixture of 10 : 1 3-mercaptopropanoic acid and 11-mercaptoundecanoic acid was applied on gold surfaces of QCM crystals to form a selfassembled monolayer, and an anti-MCMV antibody was crosslinked on the surface for specific recognition of MCMV. The frequency change of the QCM crystal is a function of the concentration of MCMV with a response range from 250 ng mL(-1) to 10 mg mL(-1). The standard curve is R2 0.997, indicating a high reproducibility in MCMV detection. The detection limit is approximately 250 ng mL(-1), which is similar to that of the existing enzyme-linked immunosorbent assay (ELISA) method. The QCM sensor showed highly specific and sensitive recognition for both purified MCMV and crude extracts from corn leaf samples.

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Collaboration types
Domestic collaboration
International collaboration
Web of Science research areas
Chemistry, Analytical
Food Science & Technology
Spectroscopy
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