Journal article
Robust and Versatile Coatings Engineered via Simultaneous Covalent and Noncovalent Interactions
J Zhou, M Penna, Z Lin, Y Han, RPM Lafleur, Y Qu, JJ Richardson, I Yarovsky, JV Jokerst, F Caruso
Angewandte Chemie International Edition | WILEY-V C H VERLAG GMBH | Published : 2021
Abstract
Interfacial modular assembly has emerged as an adaptable strategy for engineering the surface properties of substrates in biomedicine, photonics, and catalysis. Herein, we report a versatile and robust coating (pBDT-TA), self-assembled from tannic acid (TA) and a self-polymerizing aromatic dithiol (i.e., benzene-1,4-dithiol, BDT), that can be engineered on diverse substrates with a precisely tuned thickness (5–40 nm) by varying the concentration of BDT used. The pBDT-TA coating is stabilized by covalent (disulfide) bonds and supramolecular (π-π) interactions, endowing the coating with high stability in various harsh aqueous environments across ionic strength, pH, temperature (e.g., 100 mM Na..
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Grants
Awarded by Australian Government
Funding Acknowledgements
We thank Dr. S. Pan, Mr. W. Yim, and Dr. H. Duan for helpful discussions. This research was conducted and funded by the Australian Research Council Centre of Excellence in Convergent Bio-Nano Science and Technology (project number CE140100036). F.C. acknowledges the award of a National Health and Medical Research Council Senior Principal Research Fellowship (GNT1135806). I.Y. and M.P. acknowledge computational resources provided through the National Computational Infrastructure (National Computational Merit Allocation Scheme grant e87) supported by the Australian Government. This work was performed in part at the San Diego Nanotechnology Infrastructure (SDNI) of the University of California San Diego, a member of the National Nanotechnology Coordinated Infrastructure (NNCI), which is supported by the National Science Foundation (NSF) (Grant ECCS-1542148). J.V.J. acknowledges funding from the National Institutes of Health (DP2 HL137187) and NSF (1845683). R.P.M.L. acknowledges the Netherlands Organisation for Scientific Research for a Rubicon postdoctoral fellowship (project 019.182EN.034). J.J.R. acknowledges JSPS KAKENHI Grant Number 20F20373 and JSPS Fellowship P20373.