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Surface modification of ZnO nanorods with Hamilton receptors

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Citation

Zeininger, L., Klaumünzer, M., Peukert, W., & Hirsch, A. (2015). Surface modification of ZnO nanorods with Hamilton receptors. International Journal of Molecular Sciences, 16(4), 8186-8200. doi:10.3390/ijms16048186.


Cite as: https://hdl.handle.net/21.11116/0000-0005-4612-8
Abstract
A new prototype of a Hamilton receptor suitable for the functionalization of inorganic nanoparticles was synthesized and characterized. The hydrogen bonding receptor was coupled to a catechol moiety, which served as anchor group for the functionalization of metal oxides, in particular zinc oxide. Synthesized zinc oxide nanorods [ZnO] were used for surface functionalization. The wet-chemical functionalization procedure towards monolayer-grafted particles [ZnO-HR] is described and a detailed characterization study is presented. In addition, the detection of specific cyanurate molecules is demonstrated. The hybrid structures [ZnO-HR-CA] were stable towards agglomeration and exhibited enhanced dispersability in apolar solvents. This observation, in combination with several spectroscopic experiments gave evidence of the highly directional supramolecular recognition at the surface of nanoparticles. © 2015 by the authors; licensee MDPI, Basel, Switzerland.