Abstract: A dopamine-imprinted polymer (MIP) was prepared in aqueous methanolsolution at 60oC by free-radical cross-linking polymerization of methacrylic acid in thepresence of ethylene glycol dimethacrylate as the cross-linker and dopamine hydrochlorideas the template molecule. Its ability to isolate dopamine was evaluated as the basis of asolid phase extraction procedure and compared with that of a non-imprinted polymer(NIP). The binding of dopamine was 84.1% and 29.1% for MIP and NIP, respectively.Various reported post-polymerization treatments to reduce template bleeding wereexamined. In our case the lowest bleeding was achieved after applying a combinedprocedure: continuous extraction in a Soxhlet apparatus (CE), followed by microwave-assisted extraction (ME) to a level of 0.061 μg/mL. A simplified model of the template-monomer complexes allowed rationalization of monomer choice based on the heats ofcomplex formation at a PM3 level of theory.
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Luliński, P.; Maciejewska, D.; Bamburowicz-Klimkowska, M.; Szutowski, M. Dopamine-Imprinted Polymers: Template-Monomer Interactions, Analysis of Template Removal and Application to Solid Phase Extraction. Molecules 2007, 12, 2434-2449.
Luliński P, Maciejewska D, Bamburowicz-Klimkowska M, Szutowski M. Dopamine-Imprinted Polymers: Template-Monomer Interactions, Analysis of Template Removal and Application to Solid Phase Extraction. Molecules. 2007; 12(11):2434-2449.
Luliński, Piotr; Maciejewska, Dorota; Bamburowicz-Klimkowska, Magdalena; Szutowski, Mirosław. 2007. "Dopamine-Imprinted Polymers: Template-Monomer Interactions, Analysis of Template Removal and Application to Solid Phase Extraction." Molecules 12, no. 11: 2434-2449.