Fullerene thiol derivates

Fig. 19.6. Functionalization of gold nanoparticles with thiol derivatives of fullerene and pyrene.

A self-assembled photoactive antenna system containing GNP as the central nanocore and appended fullerene moieties as the photoreceptive hydrophobic shell was designed by functionalizing a GNP with a thiol derivative of fullerene... 

Self-assembled monolayers of Cgo derivatives have been successfully obtained using thiol-functionalized fullerenes [29,79-82]. In a recent report, Echegoyen and collaborators used a LlO-phenanthroline-Cgo (phen-Cgo) adduct to form a self-assembled monolayer on Au(lll) (Schemes) [83]. However, whereas phen-Cgo alone did not form stable monolayers, very well ordered stacks were obtained using 1,10-phenanthroline as a template, within which the fullerene derivative intercalates very efficiently. The geometry of the packing seems to be controlled by the dimensions of the two partners, as the fullerene diameter is about 10 A and the phen-phen distance is approximately 1/3 (3.3 A). 

The authors laboratory has demonstrated some of these unique functional nanomaterials, particularly those based on chitosans [202]. The preparation of QDs, chitosan-GNP derivatives, and fullerene-based chitosan derivatives, and the immobilization of gold nanoparticles onto thiol-functionalized chitosans are shown in Fig. 1. 

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