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In the Laboratory
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Basic Electrochemistry Meets Nanotechnology: Electrochemical Preparation of Artificial Receptors Based on Nanostructured Conducting Polymer, Polypyrrole
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Almira Ramanaviciene
Institute of Immunology of Vilnius University, 08409 Vilnius, Lithuania
Arnonas Finkelsteinas
Faculty of Chemistry, Vilnius University, 03225 Vilnius, Lithuania
Arunas Ramanavicius
Institute of Immunology of Vilnius University, 08409 Vilnius, Lithuania; Faculty of Chemistry, Vilnius University, 03225 Vilnius, Lithuania
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August 2006
Vol. 83 No. 8
p. 1212
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| Abstract |
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This article examines the usefulness of a conducting polymer, polypyrrole, in the design of molecularly imprinted polymer-based sensors. Basic electrochemical techniques previously described in this Journal are applied in the preparation of the molecularly imprinted conducting polymer polypyrrole (mPpy). Pulsed amperometric detection (PAD) method is applied for the estimation of success in the preparation of mPpy and for the detection of analyte interaction with the complementary cavities imprinted within the polymeric backbone. Caffeine was selected as a template molecule for molecular imprinting of polypyrrole. Estimation of caffeine concentration has an analytical impact owing to its high biological activity. Moreover, caffeine is well known to the students. Application of electrochemical polymerization techniques enables preparation of molecularly imprinted conducting polymer-based analytical systems. Such systems exhibit an artificially created affinity and can act as synthetic receptors.
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| Supplement |
Student handouts, notes for the instructor, extended laboratory protocols, and extended literature review are available.
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 Contents |
JCE2006p1212W.doc (Microsoft Word)
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| More Information |
Citation |
Ramanaviciene, Almira; Finkelsteinas, Arnonas; Ramanavicius, Arunas. J. Chem. Educ. 2006 83 1212.
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Keywords |
Analytical Chemistry; Bioanalytical Chemistry; Electrochemistry; Food Science; Hands-On Learning / Manipulatives; Laboratory Instruction; Materials Science; Nanotechnology; Polymer Chemistry; Quantitative Analysis; Surface Science; Upper-Division Undergraduate
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History |
Created:
Last Updated: |
6/21/2006
6/30/2006
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