Biosensor based on ds-DNA decorated chitosan modified multiwall carbon nanotubes for voltammetric biodetection of herbicide amitrole

• Published in: Colloids and surfaces, B, Biointerfaces Vol. 109; pp. 45 - 51
• Main Authors: Ensafi, Ali A., Amini, Maryam, Rezaei, Behzad
• Format: Journal Article
• Language: English
• Published: Netherlands Elsevier B.V 01.09.2013
• Subjects: absorption; Amitrole; Amitrole - analysis; Animals; Biosensing Techniques; biosensors; carbon nanotubes; chitosan; Chitosan - chemistry; Chitosan-modified multiwall carbon nanotubes; colloids; detection limit; DNA - chemistry; DNA biosensor; electrochemistry; Electrodes; graphene; Graphite - chemistry; Herbicides - analysis; Intercalative binding; Male; Nanotubes, Carbon - chemistry; oxidation; Salmon; spermatozoa; Spermatozoa - chemistry; Voltammetry; Voltammetry; Intercalative binding; Chitosan-modified multiwall carbon nanotubes; Amitrole; DNA biosensor

We introduceda DNA biosensor for determination of amitrole using differential pulse voltammetry. We immobilized a mixture of MWCNTs and chitosan on the surface of pretreated pencil graphite electrode for improving the immobilization of the ds-DNA on the surface. We used the signal of amitrole, after...