Publications

Hamilton Receptor-Mediated Self-Assembly of Orthogonally Functionalized Au and TiO2 Nanoparticles

Author(s)
Muhammad Ali, Dominik H. Hasenoehrl, Lukas Zeininger, Alexander R. M. Muellner, Herwig Peterlik, Andreas Hirsch
Abstract

A new prototype of reversible self-assembly between functionalized gold and titanium dioxide nanoparticles (NPs) utilizing hydrogen bonding interactions was developed and established. The gold nanoparticles were functionalized with a Hamilton-receptor functionality bearing a thiol moiety as anchoring group. The titanium dioxide nanoparticles were modified with cyanurate derivatives which contained phosphonic acids as anchoring groups. The host-guest type interaction between two functionalized nanoparticles yielded a highly integrated nanoparticle system in chloroform. Moreover, by presenting a competing ligand in an exchange reaction, the product of self-assembly can be segregated into the individual soluble components of functionalized nanoparticles. The self-assembly and the exchange reaction were followed and monitored in detail by UV/Vis spectroscopy. The structure of the self-assembly product was investigated using scanning electron microscopy (SEM) and small-angle X-ray scattering (SAXS).

Organisation(s)
Dynamics of Condensed Systems, Faculty Center for Nano Structure Research
External organisation(s)
Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU)
Journal
Helvetica Chimica Acta
Volume
102
No. of pages
14
ISSN
0018-019X
DOI
https://doi.org/10.1002/hlca.201900015
Publication date
04-2019
Peer reviewed
Yes
Austrian Fields of Science 2012
Surface chemistry, Polymer physics, Electron microscopy
Keywords
Portal url
https://ucris.univie.ac.at/portal/en/publications/hamilton-receptormediated-selfassembly-of-orthogonally-functionalized-au-and-tio2-nanoparticles(48063d3a-0344-4615-b6be-108ca42b3a57).html