Supramolecular self-assembled arrangements of maltose glyconanoparticles

Langmuir : the ACS Journal of Surfaces and Colloids
Martina FussFernando Briones

Abstract

Our group previously reported the preparation of water-soluble Au-Fe(x)O(y) nanoparticles functionalized with a maltose neoglycoconjugate. A fraction soluble in methanol was also separated and originated a new supramolecular polymeric aggregate. We report here the full characterization of this novel material by transmission electron microscopy (TEM), fluorescence emission, and atomic force microscopy. By means of noncontact dynamic atomic force microscopy, we have been able to obtain information about the organization of the organic components of the polymers, which eluded TEM analysis. We have observed that polymers packed in units about 65 nm in length and 40 nm in width on Au surfaces. The nanoparticles seem to be encapsulated by the organic material. We propose interactions between the sugar residues and the amphiphilic character of the maltose neoglycoconjugate (with a lipophilic undecane spacer) as responsible for the origin of these amazing supramolecular arrangements.

References

Jan 18, 1996·Nature·J Israelachvili, H Wennerström
Nov 22, 1996·Science·L KönigG Ertl
Aug 25, 2004·Physical Review Letters·Jie ZhengRobert M Dickson
Oct 16, 2004·Glycoconjugate Journal·Jesus M de la Fuente, Soledad Penadés
May 25, 2005·Chembiochem : a European Journal of Chemical Biology·Michael GartnerAthanassios Giannis
Jun 30, 2006·The Journal of Physical Chemistry. B·Jesús M de la FuenteSoledad Penadés
Jun 18, 2001·Angewandte Chemie·Jesús M de la FuenteSoledad Penadés

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Citations

Sep 13, 2011·Angewandte Chemie·Timothy M AltamoreTimothy Gallagher
May 19, 2021·Chemistry, an Asian Journal·Ryohei YoshisakiMasamichi Yamanaka
Aug 28, 2010·Langmuir : the ACS Journal of Surfaces and Colloids·Sébastien ChevalierJesus M de la Fuente

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