Abstract
By use of a green and simple ionic liquid, butylmethylimidazolium chloride (BMIm+Cl–) as a sole solvent, we developed a novel, green, and simple method to synthesize biocompatible composites containing polysaccharides (cellulose (CEL), chitosan (CS), and γ-cyclodextrin (γ-TCD)) and fullerene derivatives (amino-C60 and hydroxy-C60). The composites obtained (100%CEL, 100%CS, [CEL+γ-TCD] and [CS+γ-TCD]) readily adsorb amino-C60 and hydroxy-C60. Kinetics and adsorption isotherm results indicate that the fullerene derivatives physically adsorbed onto the surface of the CEL-based composites and subsequently desorbed from the composites when they were soaked in water. Conversely, because both fullerene derivatives strongly adsorbed onto the surface and subsequently diffused into the pores within the matrix of the CS-based composites, it was possible to synthesize (CS+amino-C60), (CS+hydroxy-C60), (CS+γ-TCD+amino-C60), and (CS+γ-TCD+hydroxyl-C60) composites. Microbial assay results show that adding γ-TCD, amino-C...
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