PMID- 26711233 OWN - NLM STAT- MEDLINE DCOM- 20170130 LR - 20170920 IS - 1873-376X (Electronic) IS - 1570-0232 (Linking) VI - 1021 DP - 2016 May 15 TI - Stoichiometric molecularly imprinted polymers for the recognition of anti-cancer pro-drug tegafur. PG - 197-203 LID - S1570-0232(15)30340-8 [pii] LID - 10.1016/j.jchromb.2015.12.015 [doi] AB - Molecularly imprinted polymers (MIPs) targeting tegafur, an anti-cancer 5-fluorouracil pro-drug, have been prepared by stoichiometric imprinting using 2,6-bis(acrylamido)pyridine (BAAPy) as the functional monomer. Solution association between tegafur and BAAPy was studied by (1)H NMR titration, which confirmed the formation of 1:1 complexes with an affinity constant of 574+/-15M(-1) in CDCl3. Evaluation of the synthesised materials by HPLC and equilibrium rebinding experiments revealed high selectivity of the imprinted polymer for the pro-drug vs. 5-fluorouracil and other competing analytes, with maximum imprinting factors of 25.3 and a binding capacity of 45.1mumolg(-1). The synthesised imprinted polymer was employed in solid-phase extraction of the pro-drug using an optimised protocol that included a simple wash with the porogen used in the preparation of the material. Tegafur recoveries of up to 96% were achieved from aqueous samples and 92% from urine samples spiked with the template and three competing analytes. The results demonstrate the potential of the prepared polymers in the pre-concentration of tegafur from biological samples, which could be an invaluable tool in the monitoring of patient compliance and drug uptake and excretion. CI - Copyright (c) 2015 Elsevier B.V. All rights reserved. FAU - Mattos Dos Santos, Paula AU - Mattos Dos Santos P AD - School of Chemistry and Chemical Engineering, Queen's University Belfast, David Keir Building, Stranmillis Road, BT9 5AG Belfast, Northern Ireland, United Kingdom. FAU - Hall, Andrew J AU - Hall AJ AD - Medway School of Pharmacy, Universities of Greenwich and Kent at Medway, Anson Building, Central Avenue, Chatham Maritime, Chatham, Kent, ME4 4TB, United Kingdom. FAU - Manesiotis, Panagiotis AU - Manesiotis P AD - School of Chemistry and Chemical Engineering, Queen's University Belfast, David Keir Building, Stranmillis Road, BT9 5AG Belfast, Northern Ireland, United Kingdom. Electronic address: p.manesiotis@qub.ac.uk. LA - eng PT - Journal Article DEP - 20151209 PL - Netherlands TA - J Chromatogr B Analyt Technol Biomed Life Sci JT - Journal of chromatography. B, Analytical technologies in the biomedical and life sciences JID - 101139554 RN - 0 (Antineoplastic Agents) RN - 1548R74NSZ (Tegafur) SB - IM MH - Antineoplastic Agents/*analysis/chemistry MH - Chromatography, Liquid MH - Humans MH - Molecular Imprinting/*methods MH - Solid Phase Extraction MH - Tegafur/*analysis/chemistry OTO - NOTNLM OT - 5-Fluorouracil OT - Bioanalysis OT - Molecularly imprinted polymers OT - Solid-phase extraction OT - Tegafur EDAT- 2015/12/30 06:00 MHDA- 2017/01/31 06:00 CRDT- 2015/12/30 06:00 PHST- 2015/06/09 00:00 [received] PHST- 2015/12/03 00:00 [revised] PHST- 2015/12/07 00:00 [accepted] PHST- 2015/12/30 06:00 [entrez] PHST- 2015/12/30 06:00 [pubmed] PHST- 2017/01/31 06:00 [medline] AID - S1570-0232(15)30340-8 [pii] AID - 10.1016/j.jchromb.2015.12.015 [doi] PST - ppublish SO - J Chromatogr B Analyt Technol Biomed Life Sci. 2016 May 15;1021:197-203. doi: 10.1016/j.jchromb.2015.12.015. Epub 2015 Dec 9.