bullet Sensors & Transducers Journal

    (ISSN 1726- 5479)


2008 e-Impact Factor

25 Top Downloaded Articles

Best Selling Articles 2012

Journal Subscription 2013

Editorial Calendar 2013

Submit an Article

Editorial Board

Current Issue

Sensors & Transducers journal's cover

Sensors & Transducers Journal 2011

Sensors & Transducers Journal 2010

Sensors & Transducers Journal 2009

Sensors & Transducers Journal 2008

Sensors & Transducers Journal 2007

2000-2002 S&T e-Digest Contents

2003 S&T e-Digest Contents

2004 S&T e-Digest Contents

2005 S&T e-Digest Contents

2006 S&T e-Digest Contents


Best Articles 2011




Vol. 149, No. 2, February 2013, pp. 135-142




Electrochemical Characterization of Enzymatic Impedimetric Biosensor Destined to Detect Organochlorine Pesticide:
the Diclofop-methyl


a S. Baali, a S. Zougar, a R. Kherrat, b Z. Djeghaba, b F. Benamia, c N. Jaffrezic-Renault

a Laboratory of Environmental Engineering, Department of Process Engineering,

Faculty of Engineering Sciences, Badji Mokhtar University -Annaba, B. P. 12, Annaba, 23000, Algeria

b Laboratory of Applied Organic Chemistry, Department of Chemistry, B. P. 12, Annaba, 23000, Algeria

c University of Lyon, Laboratory of Analytical Sciences, UMR-CNRS 5180, Claude Bernard University,

Lyon I, 43 Boulevard du 11 November 1918, 69622 Villeurbanne Cedex, France

Tel.: +21307 823 1440, fax: +213 823 3315

E-mail: souadbaali@yahoo.fr, rkherrat@yahoo.fr


Received: 2 January 2013   /Accepted: 14 February 2013   /Published: 28 February 2013

Digital Sensors and Sensor Sysstems


Abstract: Preservation of aquatic ecosystems requires early warning tools such as biosensors for in situ monitoring and continuously. Such tools can provide information about the nature of pollutants condition be designed to meet specific manner. This work proposes an impedimetric biosensor, using a bacterial enzyme (Condida Rugosa lipase) immobilized in an organic matrix composed of BSA (bovine serum albumin) and glutaraldehyde, capable of detecting organochlorine pesticides (Diclofop-methyl) state trace in aqueous media. Moreover, these measurements were carried out by varying a number of parameters characteristic of the system being studied in order to better define the role of the different elements involved in the development of the receiving part of the sensor as follows: Composition of the membrane, effect of temperature and the effect of the pH of the medium. The results show that the developed biosensor provides answers in an area of very low concentrations of the order of 5.99x10-14 - 5.88x10-3 g/L and a detection limit of 5.99x10-14 g/L for Diclofop-methyl. This biosensor detects the pollutant in a temperature range between 20 C and 40 C. We also studied the selectivity of the detection of the target substance in the presence of interfering with some heavy metals (cadmium, cobalt, zinc and lead) and other organophosphorus and organochlorines pesticide.


Keywords: Impedimetric biosensor, Condida Rugosa lipase, Organochlorine pesticide, Dichlofop-methyl, Detection.


Acrobat reader logo Click <here> or title of paper to download the full pages article in pdf format



Read free articles about Biosensors






1999 - 2018 Copyright , International Frequency Sensor Association (IFSA). All Rights Reserved.

Home - News - Links - Archives - Tools - Voltage-to-Frequency Converters - Standardization - Patents - Marketplace - Projects - Wish List - e-Shop - Sensor Jobs - Membership - Videos - Publishing - Site Map - Subscribe - Search

 Members Area -Sensors Portal -Training Courses - S&T Digest - For advertisers - Bookstore - Forums - Polls - Submit Press Release - Submit White Paper - Testimonies - Twitter - Facebook - LinkedIn