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‘On/off’-switchable catalysis by a smart enzyme-like imprinted polymer
Central China Normal University.
Cranfield University, UK.
Cranfield University, UK.
Cranfield University, UK.
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2011 (English)In: Journal of Catalysis, ISSN 0021-9517, E-ISSN 1090-2694, Vol. 278, no 2, 173-180 p.Article in journal (Refereed) Published
Abstract [en]

‘On/off’-switchable catalysis by a smart enzyme-like imprinted polymer is reported. This unique imprinted polymer was composed of poly(N-isopropylacrylamide)-containing p-nitrophenyl phosphate-imprinted networks that exhibited temperature-dependent hydrophilicity/hydrophobicity. At a relatively low temperature (such as 20 °C), this polymer was capable of vigorous catalysis for the hydrolysis of p-nitrophenyl acetate due to its hydrophilic networks, which enabled access to the imprinted framework. On the contrary, at higher temperatures (such as 40 °C), this polymer demonstrated poor catalysis resulting from its dramatically increased hydrophobicity, which inhibited access to the imprinted sites. Unlike previously reported imprinted polymers which lack adjustable networks, this novel imprinted polymer employed thermosensitive poly(N-isopropylacrylamide) networks, thus enabling the switchable catalysis.

Place, publisher, year, edition, pages
Elsevier, 2011. Vol. 278, no 2, 173-180 p.
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:liu:diva-73197DOI: 10.1016/j.jcat.2010.11.011OAI: oai:DiVA.org:liu-73197DiVA: diva2:468737
Available from: 2011-12-21 Created: 2011-12-21 Last updated: 2017-12-08

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Turner, Anthony P.F.

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