| 温敏材料改性纳米颗粒对纤维素酶活性的影响 |
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| 引用本文： | 李鑫,吴银萍,夏启斌.温敏材料改性纳米颗粒对纤维素酶活性的影响[J].安徽农业科学,2010,38(29):16131-16133. |
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| 作者姓名： | 李鑫 吴银萍 夏启斌 |
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| 作者单位： | 华南理工大学化学与化工学院,广东广州,510640;华南农业大学理学院应用化学系,广东广州,510642;华南农业大学理学院应用化学系,广东广州,510642;华南理工大学化学与化工学院,广东广州,510640 |
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| 基金项目： | 博士后基金(20080430820); 广东省绿色化学产品技术重点实验室开放基金(GC200805); 华南农业大学校长基金(2008K014); 东莞市科技计划重点资助项目(200910814001) |
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| 摘 要： | 采用分光光度计法测定了温敏材料改性纳米二氧化钛、碳纳米管的粒径在不同条件下对纤维素酶活性的影响。结果表明：在不同的温度及纳米材料浓度下,随着纳米材料粒径的减小,纤维素酶的活力逐渐降低。温敏材料改性能够调控纳米材料粒径,可以在特定条件下降低纳米材料对纤维素酶活性的影响,即在低于LCST温度时,改性对纤维素酶活性无明显影响;高于LCST温度时,改性可以显著提高纤维素酶的活性。
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| 关 键 词： | 纤维素酶 纳米二氧化钛 碳纳米管 温敏材料 |
The Effects of Nano Particles Modified by Thermosensitive Materials on the Activities of Cellulose Enzyme |
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| LI Xin et al.The Effects of Nano Particles Modified by Thermosensitive Materials on the Activities of Cellulose Enzyme[J].Journal of Anhui Agricultural Sciences,2010,38(29):16131-16133. |
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| Authors: | LI Xin |
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| Institution: | LI Xin et al(The Guangdong Provincial Laboratory of Green Chemical Technology,school of Chemistry , Chemical Engineering,South China University of Technology,Guangzhou,Guangdong 510640) |
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| Abstract: | The spectrophotometer method is adopted to detect the influence of the particle size of nano-titanium dioxide and carbon nanotubes modified by thermosensitive materials on activity of cellulase under different conditions.The results show that:the cellulase activity gradually decreases as the size of nano-materials becomes small under different temperature and concentrations of nano-materials.Thermosensitive material can control the size of nano-materials and reduce the impact of cellulose activity under a c... |
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| Keywords: | Cellulase enzyme Nano-titanium dioxide Carbon nanotubes Thermosensitive material |
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