Hydration and Dispersion of C60 in Aqueous Systems: The Nature of Water−Fullerene Interactions

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• 作者：Jrme Labille ; Armand Masion ; Fabio Ziarelli ; Jrme Rose ; Jonathan Brant ; Frdric Villiras ; Manuel Pelletier ; Daniel Borschneck ; Mark R. Wiesner ; Jean-Yves Bottero
• 刊名：Langmuir
• 出版年：2009
• 出版时间：October 6, 2009
• 年：2009
• 卷：25
• 期：19
• 页码：11232-11235
• 全文大小：723K
• 年卷期：v.25,no.19(October 6, 2009)
• ISSN：1520-5827

文摘

The nature of fullerene−water interactions and the role that they play in the fate of C₆₀ in aqueous systems is poorly understood. This work provides spectroscopic evidence for the surface hydroxylation of the initially hydrophobic C₆₀ molecule when immersed in water. This mechanism appears to be the basis for stabilizing the hydrophilic nC₆₀ aggregates in suspension. It is remarkable that such a chemical transformation and dispersion are achieved under mild conditions that are readily produced in an aquatic environment. This acquired affinity for water is likely to play a subsequent role in the reactivity, mobility, and bioavailability of fullerenes in aqueous media.