Journal article
Assembly of Silicate–Phenolic Network Coatings with Tunable Properties for Controlled Release of Small Molecules
O Mazaheri, Z Lin, W Xu, M Mohankumar, T Wang, A Zavabeti, RV McQuillan, J Chen, JJ Richardson, KA Mumford, F Caruso
Advanced Materials | Wiley | Published : 2024
Abstract
Engineered coatings are pivotal for tailoring the surface properties and release profiles of materials for applications across diverse areas. However, developing robust coatings that can both encapsulate and controllably release cargo is challenging. Herein, a dynamic covalent coordination assembly strategy is used to engineer robust silicate-based coatings, termed silicate–phenolic networks (SPNs), using sodium metasilicate and phenolic ligands (tannic acid, gallic acid, pyrogallol). The coatings are pH-responsive (owing to the dynamic covalent bonding), and their hydrophobicity can be tuned upon their post-functionalization with hydrophobic gallates (propyl, octyl, lauryl gallates). The po..
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Grants
Awarded by Australian Government
Funding Acknowledgements
This research was supported under the Australian Research Council's Industrial Transformation Research Program funding scheme IH200100023. Z.L. acknowledges The University of Melbourne for an Early Career Researcher grant. A.Z. acknowledges support through the ARC Discovery Early Career Researcher Award (DE240100743) scheme. J.J.R. is recipient of an ARC Future Fellowship (Project no. FT210100669) funded by the Australian Government. The authors thank the Melbourne Trace Analysis for Chemical, Earth, and Environmental Sciences (TrACEES) Platform for access to the micro-CT scanner and Dr. Jay Black (School of Earth Sciences, The University of Melbourne) for technical assistance with the micro-CT analyses. This work was performed in part at Chemical and Biochemical Engineering Platform, Materials Characterisation and Fabrication Platform (MCFP), and Mass Spectroscopy and Proteomics Facility at Bio21 institute at The University of Melbourne. This research was undertaken in part on the SAXS/WAXS beamline at the Australian Synchrotron, part of ANSTO (Grant No. 18766). The authors thank Dr. Roya Khalil from Incitec Pivot Limited and Prof. Deli Chen from The University of Melbourne for helpful discussions on industrial concepts of the work. Scheme 1, Figure 3f, Figure 4b, and Schemes S1-S3 (Supporting Information) were created with BioRender.