Please use this identifier to cite or link to this item: https://hdl.handle.net/10321/2220
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dc.contributor.authorMadikizela, Lawrence Mzukisien_US
dc.contributor.authorMdluli, Phumlani Selbyen_US
dc.contributor.authorChimuka, Lukeen_US
dc.date.accessioned2017-02-02T05:27:56Z-
dc.date.available2017-02-02T05:27:56Z-
dc.date.issued2016-
dc.identifier.citationMadikizela, L.M.; Mdluli, P.S. and Chimuka, L. 2016. Experimental and theoretical study of molecular interactions between 2-vinyl pyridine and acidic pharmaceuticals used as multi-template molecules in molecularly imprinted polymer. Reactive and Functional Polymers. 103: 33-43.en_US
dc.identifier.issn1381-5148 (print)-
dc.identifier.issn1873-166X (online)-
dc.identifier.urihttp://hdl.handle.net/10321/2220-
dc.description.abstractMolecular interactions between functional monomer and template molecules are regarded as the driving force for the success of a molecularly imprinted polymer. In this study, a multi-template molecularly imprinted poly-mer (MIP) for ibuprofen, naproxen and diclofenac was synthesized in an oil bath set at 70 °C for 24 hours. 2-vinyl pyridine, ethylene glycol dimethacrylate, toluene and 1,1’-azobis-(cyclohexanecarbonitrile) were used as func-tional monomer, cross-linker, porogen and radical initiator, respectively. A non-imprinted polymer (NIP) was synthesized using a similar approach with the omission of templates. Monomer-template interactions were ex-amined using Molecular Dynamics and Fourier Transform Infrared Spectroscopy (FTIR). Both molecular dynam-ics and FT-IR results indicated the formation of the hydrogen bond between the templates and 2-vinyl pyridine. Molecular dynamics further revealed the identity of the hydrogen atoms in the templates involved in interactions with nitrogen atom on the functional monomer in the presence of toluene molecules. Surface area obtained for the MIP using Brunauer, Emmett and Teller method was 282 m2/g, whereas 232 m2/g was obtained for the NIP. This indicated that MIP has more binding sites compared to the NIP. Furthermore, batch adsorption and se-lectivity experiments were carried out in the presence of gemfibrozil as the competitor. When such experiments were carried out in toluene, the adsorption capacities (mg/g) obtained for naproxen, ibuprofen, diclofenac and gemfibrozil were 14.4, 11.0, 14.0 and 7.5, respectively. These results show that the MIP was more selective to the compounds that were used as template molecules.en_US
dc.format.extent11 pen_US
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.relation.ispartofReactive and functional polymers (Online)en_US
dc.subjectFunctional monomeren_US
dc.subjectIbuprofenen_US
dc.subjectDiclofenacen_US
dc.subjectNaproxenen_US
dc.subjectInteractionen_US
dc.subjectAdsorptionen_US
dc.titleExperimental and theoretical study of molecular interactions between 2-vinyl pyridine and acidic pharmaceuticals used as multi-template molecules in molecularly imprinted polymeren_US
dc.typeArticleen_US
dc.publisher.urihttp://dx.doi.org/10.1016/j.reactfunctpolym.2016.03.017en_US
dc.dut-rims.pubnumDUT-005345en_US
dc.description.availabilityCopyright: 2016. Elsevier. Due to copyright restrictions, only the abstract is available. For access to the full text item, please consult the publisher's website. The definitive version of the work is published in Reactive and Functional Polymers, Vol 103. Pp 33 -43. http://dx.doi.org/10.1016/j.reactfunctpolym.2016.03.017en_US
dc.identifier.doihttp://dx.doi.org/10.1016/j.reactfunctpolym.2016.03.017-
local.sdgSDG03-
item.languageiso639-1en-
item.openairetypeArticle-
item.cerifentitytypePublications-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.fulltextNo Fulltext-
item.grantfulltextnone-
Appears in Collections:Research Publications (Applied Sciences)
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