Vol. 107, Issue 8, August 2009, pp.17-25

Electronic Nose Technology and its Applications

Esmaeil MAHMOUDI

Department of Plant Pathology, College of Agriculture, Islamic Azad University

Khorasgan Branch, Isfahan, Iran

Tel.: 098-03115354002-8, fax: 098-03115354048

E-mail: esm_mah@yahoo.com

Received: 29 May 2009   /Accepted:  15 August 2009   /Published:  25 August 2009

Abstract: In the past decade, Electronic Nose instrumentation has generated much interest internationally for its potential to solve a wide variety of problems in fragrance and cosmetics production, food and beverages manufacturing, chemical engineering, environmental monitoring and more recently medical diagnostic, bioprocesses and clinical diagnostic plant diseases. This instrument measure electrical resistance changes generated by adsorption of volatiles to the surface of electro active- polymer coated sensor- unique digital electronic fingerprint of aroma derived from multi-sensor- responses to distinct mixture of microbial volatiles. Major advances in information and gas sensor technology could enhance the diagnostic power of future bio-electronic nose and facilitate global surveillance mode of disease control and management. Several dozen companies are now designed and selling electronic nose units globally for a wide variety of expending markets. The present review includes principles of electronic nose technology, biosensor structure and applications of electronic nose in many fields.

Keywords: Electronic Nose, Biosensor, Clinical diagnostic, Microbial volatiles

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