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Volume : III, Issue : VII, August - 2013 Preparation And Characteristics Of Magnetic Nanoparticles With Chitosan For Food Bacterial Detection V. Manonmani And Vimala Juliet DOI : 10.9780/22307850, Published By : Laxmi Book Publication Abstract : A world wide foodborne illness due to viruses remains a major concern, despite improving hygienic
conditions. Magnetic nanoparticles have attracted recent researchers for their intensive applications as biomaterials
and magnetic storage materials. The goal of this study is to synthesize Mg- NP's by using ultrasonic-assisted
chemical coprecipitation method under different conditions. The Synthesized Mg- NP's was coated with chitosan
for capturing the bacterial concentration from contaminated food sample. Chitosan from amine group specifically
binds with bacteria on their surface of most food pathogenic bacteria (Staphylococcus aureus). The binding
characteristic of chitosan coated Mg- NP's with bacterial cell wall was obtained by using UV-Visible spectroscopy
and Transmission Electron Microscopy. UV-Visible Spectroscopy gives the reading of absorbance when the
binding of receptor proteins occured with the sample. By using TEM, the Mg NP's shape and size was investigated.
The product consisted of ferrous, ferrite (Fe3O4) nanosized cubic particles with a high level of crystallinity. This
kind of Chitosan-magnetite nanocomposite has the potential to be used in biosensors to identify and to detect
foodborne pathogens. Keywords : Article : Cite This Article : V. Manonmani And Vimala Juliet, (2013). Preparation And Characteristics Of Magnetic Nanoparticles With Chitosan For Food Bacterial Detection. Indian Streams Research Journal, Vol. III, Issue. VII, DOI : 10.9780/22307850, http://oldisrj.lbp.world/UploadedData/2757.pdf References : - Doan Thi Kim Tung, Tran Hoang Hai, “Preparation and characterization of Magnetic nanoparticles with chitosan coating”, Journal of Physics: Conference series 187(2009) 0 1 2 0 3 6 . IOP Pu b l i s h i n g , d o i : 1 0 . 1 0 8 8 / 1 7 4 2 - 6596/1871/012036.
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