Nanofibrous membranes containing carbon nanotubes: Electrospun for redox enzyme immobilization

被引：58
作者：
Wang, ZG
Xu, ZK [1 ]
Wan, LS
Wu, J
Innocent, C
Seta, P
机构：
[1] Zhejiang Univ, Minist Educ, Inst Polymer Sci, Hangzhou 310027, Peoples R China
[2] Zhejiang Univ, Minist Educ, Key Lab Macromol Synth & Funct, Hangzhou 310027, Peoples R China
[3] Zhejiang Univ, Dept Chem, Hangzhou 310027, Peoples R China
[4] CNRS, UMR 5635, Inst Europee Membranes, F-34293 Montpellier 05, France
来源：
MACROMOLECULAR RAPID COMMUNICATIONS | 2006年 / 27卷 / 07期
关键词：
carbon nanotubes; catalase; electrospinning; enzyme immobilization; enzymes; membranes; nanofibrous membranes; poly(acrylonitrile-co-acrylic acid);
D O I：
10.1002/marc.200500885
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Nanofibrous membranes that possess reactive groups are fabricated by the electrospinning process from PANCAA solutions that contain MWCNTs. Field emission scanning electron microscopy is used to evaluate the morphology and diameter of the nanofibers. Potentials for applying these nanofibrous membranes to immobilize redox enzymes by covalent bonding are explored. It is envisaged that the electrospun nanofibrous membranes Could provide a large specific area and the MWCNTs could donate/accept electrons for the immobilized redox enzymes. Results indicate that, after blending with MWCNTs, the diameter of the PANCAA nanofiber increases slightly. The PANCAA/MWCNT nanofibrous membranes immobilize more enzymes than that without MWCNTs. Moreover, as the concentration of the MWCNTs increases, the activity of the immobilized catalase is enhanced by about 42%, which is mainly attributed to the promoted electron transfer through charge-transfer complexes and the pi system of MWCNTs.
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收藏
页码：516 / 521
页数：6
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