Determination of monolayer-protected gold nanoparticle ligand–shell morphology using NMR
Name
Liu_2012-Determination of monolayer.pdf
Size
926.02 KB
Format
Adobe PDF
Checksum (MD5)
9608ebd0ca9a829caf63bf88b14465f3
Author(s)
Liu, Xiang
Yu, Miao
Kim, Hyewon
Mameli, Marta
Stellacci, Francesco
Date Issued
November 2012
Journal
Nature Communications
Publisher
Nature Publishing Group
Citation
Liu, Xiang, Miao Yu, Hyewon Kim, Marta Mameli, and Francesco Stellacci. “Determination of monolayer-protected gold nanoparticle ligand–shell morphology using NMR.” Nature Communications 3 (November 13, 2012): 1182. © 2012 Nature Publishing Group, a division of Macmillan Publishers Limited
Version
Final published version
Abstract
It is accepted that the ligand shell morphology of nanoparticles coated with a monolayer of molecules can be partly responsible for important properties such as cell membrane penetration and wetting. When binary mixtures of molecules coat a nanoparticle, they can arrange randomly or separate into domains, for example, forming Janus, patchy or striped particles. To date, there is no straightforward method for the determination of such structures. Here we show that a combination of one-dimensional and two-dimensional NMR can be used to determine the ligand shell structure of a series of particles covered with aliphatic and aromatic ligands of varying composition. This approach is a powerful way to determine the ligand shell structure of patchy particles; it has the limitation of needing a whole series of compositions and ligands' combinations with NMR peaks well separated and whose shifts due to the surrounding environment can be large enough.
MIT Department
Massachusetts Institute of Technology. Department of Materials Science and Engineering
Terms of Use
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1038/ncomms2155
