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The Scientific World Journal
Volume 2015, Article ID 510982, 12 pages
http://dx.doi.org/10.1155/2015/510982
Review Article

Recent Trends in Rapid Environmental Monitoring of Pathogens and Toxicants: Potential of Nanoparticle-Based Biosensor and Applications

1Faculty of Environment and Resource Studies, Mahidol University, Phutthamonthon District, Nakhon Pathom 73170, Thailand
2Department of Safety Engineering, Institute of Environmental Medicine for Green Chemistry, Dongguk University, Gyeongju, Gyeongbuk 780-714, Republic of Korea
3Department of Microbiology, Kasetsart University, Bangkok 10900, Thailand
4Food Safety Center, Institute for Scientific and Technological Research and Services (ISTRS), King Mongkut’s University of Technology Thonburi (KMUTT), Bangkok 10140, Thailand

Received 30 July 2014; Revised 7 November 2014; Accepted 7 November 2014

Academic Editor: Xiao-Feng Zhao

Copyright © 2015 Preeyaporn Koedrith et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Of global concern, environmental pollution adversely affects human health and socioeconomic development. The presence of environmental contaminants, especially bacterial, viral, and parasitic pathogens and their toxins as well as chemical substances, poses serious public health concerns. Nanoparticle-based biosensors are considered as potential tools for rapid, specific, and highly sensitive detection of the analyte of interest (both biotic and abiotic contaminants). In particular, there are several limitations of conventional detection methods for water-borne pathogens due to low concentrations and interference with various enzymatic inhibitors in the environmental samples. The increase of cells to detection levels requires long incubation time. This review describes current state of biosensor nanotechnology, the advantage over conventional detection methods, and the challenges due to testing of environmental samples. The major approach is to use nanoparticles as signal reporter to increase output rather than spending time to increase cell concentrations. Trends in future development of novel detection devices and their advantages over other environmental monitoring methodologies are also discussed.