Synfacts 2007(5): 0481-0481  
DOI: 10.1055/s-2007-968410
Synthesis of Materials and Unnatural Products
© Georg Thieme Verlag Stuttgart · New York

Robust Nanocoatings for Nanoparticles

Contributor(s):Timothy M. Swager
R. Balasubramanian, Y.-G. Kwon, A. Wei*
Purdue University, West Lafayette, USA
Encapsulation and Functionalization of Nanoparticles in Crosslinked Resorcinarene Shells
J. Mater. Chem.  2007,  17:  105-112  
Further Information

Publication History

Publication Date:
24 April 2007 (online)


Methods to create stable functionalized nanoparticles are needed for applications of these materials. The rigid tetrathio-resorcinarene scaffold creates a strong interaction with gold nanoparticles and subsequent acyclic diene meta­thesis polymerization by the first-generation Grubbs catalyst gives well-behaved materials that can be precipitated and redispersed multiple times. These crosslinked nanocoatings can be subjected to oxidation reactions that provide access to a diverse array of functionality.


Gold nanoparticles have found many applications in biosensing and nanophotonics. However, the utility of larger gold nanoparticles (>10 nm) is generally limited by instabilities in their coatings and a tendency to aggregate. This research provides one of the best examples of a designed coating for nanoparticles that is robust and functionalizable. Larger nanoparticles are stabilized and functionalization of the nanocoatings allows for the solubility to be modified and for bioconjugation.