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Proceedings Paper

Nanocomposite copolymer thin-film sensor for detection of escherichia coli
Author(s): Prafull Mathur; S. C. K. Misra; Maneesha Yadav; S. S. Bawa; A. K. Gupta
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Paper Abstract

The majority of human diseases associated with microbial contaminated water are infectious in nature and the associated pathogen includes bacteria, fungi, viruses and protozoa. Water contaminated with bacteria can cause a number of food-borne and water-borne diseases. The waterborne transmission is highly effective means of spreading infectious agents to a large portion of population; this includes water and milk too. Waterborne infections are recognized as resulting either from ingestion of contaminated water or ice, food items, which have, came into contact with microbial contaminated water (occurring through bathing and recreational activities) etc. The detection of E. coli in food and water is normally carried out by culturing methods, which normally take 3-6 days, These methods are complicated and time-consuming in spite of their correctness, and cannot easily meet inspection demands on E. coli. Hence, an establishment of rapid detection methods for E. coli is strongly required. We have developed highly sensitive and cost effective solid sate sensors prepared from vacuum evaporated thin films of nanocomposite copolymer detection of presence of E. coli vapors in the air within 20 seconds. These sensors operate at room temperature. The preparation, optical, electrical, and structural characterization and behavioral acceptance test on the microorganism sensing properties of these sensors are reported here.

Paper Details

Date Published: 19 January 2006
PDF: 13 pages
Proc. SPIE 6036, BioMEMS and Nanotechnology II, 60361L (19 January 2006); doi: 10.1117/12.637539
Show Author Affiliations
Prafull Mathur, National Physical Lab. (India)
S. C. K. Misra, National Physical Lab. (India)
Maneesha Yadav, National Physical Lab. (India)
S. S. Bawa, National Physical Lab. (India)
A. K. Gupta, National Physical Lab. (India)

Published in SPIE Proceedings Vol. 6036:
BioMEMS and Nanotechnology II
Dan V. Nicolau, Editor(s)

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