Preparation of fullerene-shell dendrimer-core nanoconjugates

Anton W. Jensen, Brijesh S. Maru, Xi Zhang, Dillip K. Mohanty, Bradley D. Fahlman, Douglas R. Swanson, Donald A. Tomalia

Research output: Contribution to journalArticlepeer-review

57 Scopus citations


Generation 4 amine-terminated polyamidoamine dendrimer (PAMAM G4) was allowed to react with an excess of buckminsterfullerene (C 60) to form a nanoconjugate containing a PAMAM core and C 60 shell. The PAMAM-C 60 conjugate was characterized by MALDI-TOF, TGA, UV-vis, and IR spectroscopy. Approximately thirty shell fullerenes surround each dendrimer core. The conjugates catalyze photooxidation of thioanisole by generation of singlet oxygen ( 1O 2). The oxidation reactions occur in both organic and aqueous solvents, but the reactivity is enhanced in aqueous solution, possibly due to a nanoreactor effect resulting from diffusion of hydrophobic reactant molecules into dendrimer cavities. 1

Original languageEnglish
Pages (from-to)1171-1173
Number of pages3
JournalNano Letters
Issue number6
StatePublished - Jun 2005


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