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Reference type: Conference Proceeding
Authors: Chen PY, Lin CY, Ho KC
Publication date: 2009
Article title: Detection Of Uric Acid Based On Multi-Walled Carbon Nanotubes Polymerized With A Layer Of Molecularly Imprinted PMAA.
Page numbers: 284-287
DOI: 10.1063/1.3156526 Alternative URL: http://link.aip.org/link/?APCPCS/1137/284/1

Proceedings title: Olfaction and Electronic Nose, Proceedings
Editors: Pardo M, Sberveglieri G
ISBN: 0094-243X
Volume number: 1137

Abstract: A molecularly imprinted poly-metharylic acid (PMAA), polymerizing on the surface of multi-walled carbon nanotube (MWCNT), was synthesized. The MWCNT was modified by a layer of carboxylic acid and reacted with EDC and NHS to activate the carboxylic acid, which was prepared for the purpose of bonding allyl amine and getting an unsaturated side chain (-C=C). The resultant structure is abbreviated as MWCNTs-CH=CH2. It is well known that the vinyl group side chain provides good attachment between the MWCNTs and the molecularly imprinted polymer (MIP). The MIP based on PMAA was polymerized on the surface of MWCNTs-CH=CH2 with the addition of uric acid (UA). The non-imprinted polymer (NIP) was polymerized without adding UA. The adsorbed amount of UA approached the equilibrium value upon 60 min adsorption. The adsorption isotherm was obtained by immersing 10 mg of MIP or NIP in 5 mL aqueous solution containing different concentrations of UA. The adsorbed amounts were measured via a UV-Vis spectrometer at a wavelength of 292 nm. From the adsorption isotherm, it is seen that the MIP particles possess a good imprinting efficiency of about 4.41
Template and target information: uric acid
Author keywords: Multi-walled carbon nanotubes, molecularly imprinted polymer, uric acid

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