کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
682079 888975 2010 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Reversible immobilization of glucose oxidase on polyaniline grafted polyacrylonitrile conductive composite membrane
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تکنولوژی و شیمی فرآیندی
پیش نمایش صفحه اول مقاله
Reversible immobilization of glucose oxidase on polyaniline grafted polyacrylonitrile conductive composite membrane
چکیده انگلیسی

Polyacrylonitrile membrane surfaces were modified with chemical polymerization of conductive polyaniline. The effect of aniline concentration on the grafting efficiency was investigated. As the amount of grafted PANI increased on the PAN membrane, the electrical resistance of composite membrane decreased. Composite (PAN/PANI)-1–5 membrane were used for reversible immobilization of GOD. The immobilization efficiency and the activity of the immobilized GOD were increased with increasing PANI contents of the composite membrane. The maximum amount of immobilized enzyme into composite PAN/PANI-5 membrane containing 2.1% PANI was about 251 μg/cm2. Immobilized GOD exhibited 66% of its original activity even after two months of storage at 4 °C while the free enzyme lost its initial activity after three weeks.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 101, Issue 18, September 2010, Pages 6881–6887
نویسندگان
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