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dc.contributor.authorMahmoud, L.A.M.
dc.contributor.authorTelford, Richard
dc.contributor.authorLivesey, T.C.
dc.contributor.authorKatsikogianni, Maria G.
dc.contributor.authorKelly, Adrian L.
dc.contributor.authorTerry, L.R.
dc.contributor.authorTing, V.P.
dc.contributor.authorNayak, Sanjit
dc.date.accessioned2022-08-19T08:16:58Z
dc.date.available2022-08-19T08:16:58Z
dc.date.issued2022-07-29
dc.identifier.citationMahmoud LAM, Telford R, Livesey TC et al (2022) Zirconium-based MOFs and their biodegradable polymer composites for controlled and sustainable delivery of herbicides. ACS Applied Bio Materials. 5(8): 3972-3981.en_US
dc.identifier.urihttp://hdl.handle.net/10454/19105
dc.descriptionYesen_US
dc.description.abstractAdsorption and controlled release of agrochemicals has been studied widely using different nanomaterials and a variety of formulations. However, the potential for application of high surface-area metal-organic frameworks (MOFs) for the controlled release of agrochemicals has not been thoroughly explored. Herein, we report controlled and sustainable release of a widely used herbicide (2-methyl-4-chlorophenoxyacetic acid, MCPA) via incorporation in a range of zirconium-based MOFs and their biodegradable polymer composites. Three Zr-based MOFs, viz., UiO-66, UiO-66-NH2, and UiO-67 were loaded with MCPA either postsynthetically or in situ during synthesis of the MOFs. The MCPA-loaded MOFs were then incorporated into a biodegradable polycaprolactone (PCL) composite membrane. All three MOFs and their PCL composites were thoroughly characterized using FT-IR, TGA, SEM, PXRD, BET, and mass spectrometry. Release of MCPA from each of these MOFs and their PCL composites was then studied in both distilled water and in ethanol for up to 72 h using HPLC. The best performance for MCPA release was observed for the postsynthetically loaded MOFs, with PS-MCPA@UiO-66-NH2 showing the highest MCPA concentrations in ethanol and water of 0.056 and 0.037 mg/mL, respectively. Enhanced release of MCPA was observed in distilled water when the MOFs were incorporated in PCL. The concentrations of herbicides in the release studies provide us with a range of inhibitory concentrations that can be utilized depending on the crop, making this class of composite materials a promising new route for future agricultural applications.en_US
dc.description.sponsorshipL.A.M.M. and S.N. acknowledge funding for a studentship by the Erasmus+ KA107 Student Mobility programme. V.P.T and L.R.T. acknowledge funding from the EPSRC (EP/R01650X/1)en_US
dc.language.isoenen_US
dc.relation.isreferencedbyhttps://pubs.acs.org/doi/10.1021/acsabm.2c00499en_US
dc.rights© 2022 The Authors. Published by American Chemical Society. This work is licensed under a Creative Commons Attribution 4.0 International License. http://creativecommons.org/licenses/by/4.0/en_US
dc.subjectMOFen_US
dc.subjectCompositeen_US
dc.subjectZirconiumen_US
dc.subjectMCPAen_US
dc.subjectAgricultureen_US
dc.subjectPesticideen_US
dc.titleZirconium-based MOFs and their biodegradable polymer composites for controlled and sustainable delivery of herbicidesen_US
dc.status.refereedYesen_US
dc.date.Accepted2022-07-21
dc.date.application2022-07-29
dc.typeArticleen_US
dc.type.versionPublished versionen_US
dc.rights.licenseCC-BYen_US
refterms.dateFOA2022-08-19T08:18:22Z
dc.openaccess.statusopenAccessen_US


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