A citric acid-derived ligand for modular functionalization of metal oxide surfaces via "click" chemistry.
| Autor: | Bishop LM; Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, Wisconsin 53706, USA., Yeager JC, Chen X, Wheeler JN, Torelli MD, Benson MC, Burke SD, Pedersen JA, Hamers RJ |
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| Jazyk: | angličtina |
| Zdroj: | Langmuir : the ACS journal of surfaces and colloids [Langmuir] 2012 Jan 17; Vol. 28 (2), pp. 1322-9. Date of Electronic Publication: 2011 Dec 28. |
| DOI: | 10.1021/la204145t |
| Abstrakt: | Citric acid is a widely used surface-modifying ligand for growth and processing of a variety of nanoparticles; however, the inability to easily prepare derivatives of this molecule has restricted the development of versatile chemistries for nanoparticle surface functionalization. Here, we report the design and synthesis of a citric acid derivative bearing an alkyne group and demonstrate that this molecule provides the ability to achieve stable, multidentate carboxylate binding to metal oxide nanoparticles, while also enabling subsequent multistep chemistry via the Cu(I)-catalyzed azide-alkyne cycloaddition (CuAAC) reaction. The broad utility of this strategy for the modular functionalization of metal oxide surfaces was demonstrated by its application in the CuAAC modification of ZnO, Fe(2)O(3), TiO(2), and WO(3) nanoparticles. (© 2011 American Chemical Society) |
| Databáze: | MEDLINE |
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