Probing the limits of molecular imprinting: Strategies with a template of limited size and functionality

Petcu, Miruna and Karlsson, Jesper and Whitcombe, Michael J. and Nicholls, Ian A. (2009) Probing the limits of molecular imprinting: Strategies with a template of limited size and functionality. Journal of Molecular Recognition, 22 (1). pp. 18-25. ISSN 1099-1352

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Abstract or Summary

A series of polymers molecularly imprinted with the general anaesthetic propofol were synthesized using both semi- and non-covalent approaches. The polymers were evaluated with respect to template rebinding in both aqueous and organic media. In aqueous media, the observed propofol binding in these polymer systems was largely hydrophobic and non-specific in nature. In non-polar solvents such as hexane, electrostatic interactions dominate resulting in some selectivity. The implication of these results, in conjunction with those obtained using structures of similar size in other studies, indicate that propofol, a template possessing limited functionality and size, appears to define the lower limit for template size and degree of functionalization that can be used for the creation of ligand-selective recognition sites in molecularly imprinted polymers. Furthermore, studies with alternative ligands indicate that the steric crowding of a ligand’s functionality to the polymer contributes to the extent of polymer-ligand recognition.

Item Type:Journal article
Keywords that describe the item:moelcularly impritned polymers; propofol
Subjects:Q Science > Q Science (General)
T Technology > TP Chemical technology
Q Science > QD Chemistry
Divisions:Schools > Centre for Science and Primary Industries
ID Code:268
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Deposited On:02 Jul 2009 03:32
Last Modified:09 Apr 2010 02:34

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