Molecularly Imprinted Polymers for Corticosteroids: Impact of polymer format on recognition behaviour

Laurence Fitzhenry, Panagiotis Manesiotis, Patrick Duggan, Peter McLoughlin

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

A comparative study of different polymeric formats for the targeting of corticosteroids, focusing on the use of bulk monolith and precipitation polymerisation strategies, was performed and the effect on recognition behaviour was studied. Hydrocortisone-17-butyrate was selected as the template and methacrylic acid as the functional monomer, following 1H NMR investigation of the pre-polymerisation mixture. Three different cross-linkers were tested, ranging from moderate to highly hydrophobic. The synthesised bulk and precipitated imprinted polymers were physically characterised by nitrogen sorption and evaluated by means of HPLC and frontal chromatography against a range of template analogues. While some degree of selectivity for the template was achieved for all tested polymers, the ones based on the tri-functional cross-linking monomer TRIM exhibited the longest retention for all corticosteroids, especially in the precipitated format, which suggested 31 broader group selectivity.
Original languageEnglish
Pages (from-to)1421-1431
JournalMicrochimica Acta
Volume180
Issue number15
DOIs
Publication statusPublished - Nov 2013

ASJC Scopus subject areas

  • Analytical Chemistry

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