%0 Journal Article %T Degradation of a fullerene end-capped polycaprolactone by lipase AK %A QiYun Peng %A Feng Kang %A Juan Li %A XinLin Yang %J Chinese Science Bulletin %@ 1861-9541 %D 2010 %I %R 10.1007/s11434-010-4058-7 %X Using titrimetric method, enzymatic behavior of lipase AK against fullerene end-capped polycaprolactone (C60-PCL) was studied for the first time, compared with polycaprolactone (PCL). The results showed that degradation of both C60-PCL and PCL by lipase followed Mechaelis-Menten equation, with the degradation parameters of PCL and C60-PCL were 0.75 mg mL 1 and 0.16 mg mL 1 for K m, and 0.90 mL h 1 and 0.43 mL h 1 for V max, respectively. C60-PCL had a slower degradation rate than PCL under the same conditions. These data indicated that the introduction of fullerene enabled PCL hard to be degraded by lipase. %K fullerene end-capped polycaprolactone %K polycaprolactone %K lipase AK %K titrimetry %U http://link.springer.com/article/10.1007/s11434-010-4058-7