Antioxidant capacity of novel amine derivatives of buckminsterfullerene: Determination of inhibition rate constants in a model oxidation system

Radical Reactions of Fullerenes: From Synthetic Organic Chemistry to Materials Science and Biology

“…In the same context, Allen and co-workers studied the antioxidant activity of a series of amine derivatives of fullerene C 60 (268−271, Figure 8) as compared to that recorded under identical experiments for buckminsterfullerene itself and commercial primary aromatic amine stabilizers. 512 Their results indicated that linking the amine moieties directly to the fullerene core gives rise to a new chain-breaking antioxidant mode for the buckminsterfullerene, while cyclic fragments containing the same but distant amine group do not reveal this ability. Moreover, the inhibition rate constants for trapping of peroxy radicals by the amine derivatives were found to be higher than that of known aromatic amine antioxidants Neozone-D and Naugard 445.…”

“…It is well-established that fullerenes and their derivatives possess a unique capacity for scavenging reactive oxygen species (ROS). [38][39][40][41][42][43][44][45][46][47][48]512,513,557,558 ROS are chemically reactive molecules containing oxygen, such as hydrogen peroxide (H 2 O 2 ), hydroxyl radical ( • OH), and superoxide anion radical (O 2…”

Amphiphilic hybrids containing inorganic constituent: More than soap

“…The self assembly morphologies of alkyl fullerenes range from monolayers [61 • ], bilayer vesicles [59a,62], nanorods and wires [63], thin disks, fibrous, columnar liquid crystal [64], and room temperature liquids [65], to name only a few. Alkyl fullerene systems have potential for multiple molecular and self assembly applications ranging from antioxidant capacity [66], small molecule based bulk heterojunction (BHJ) organic solar cell devices [67], nanocapsules with potential applications as drug delivery systems [68], and emerging photovoltaic and optoelectric devices [69]. It can be concluded that it is appropriate to classify alkyl fullerenes as hybrid amphiphiles, despite the fact that they do not possess the classical hydrophobic/hydrophilic d block molecular architecture of surfactant used in water.…”

Fullerene C60 Derivatives as High-Temperature Inhibitors of Oxidative Degradation of Saturated Hydrocarbons

“…C 60 with attached amine group exhibits higher efficiency than conventional antioxidants during autoxidation of cumene. 31 Enes et al found that [60]fullerene-flavonoid or [60]fullerene-BHT conjugates exhibit moderate antioxidant activity during autoxidation of cumene (or styrene) in homogeneous system at 30 °C. 32,33 On the basis of these previous reports, we suggest that additional antioxidant potency should be gained when some phenol derivatives are bonded to C 60 because the new adducts will be able to react with wider range of radicals at higher temperatures.…”