Covalent Immobilization of α-Glucosidase Enzyme onto Amine Functionalized Multi-walled Carbon Nanotubes

ISSN: 1875-6786 (Online)
ISSN: 1573-4137 (Print)


Volume 13, 6 Issues, 2017


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Current Nanoscience

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Prof. Dae Joon Kang
Sungkyunkwan University
Suwon
South Korea


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Current: 0.934
5 - Year: 1.046

Covalent Immobilization of α-Glucosidase Enzyme onto Amine Functionalized Multi-walled Carbon Nanotubes



Current Nanoscience, 10(5): 730-735.

Author(s): M. Mohiuddin, D. Arbain, A.K.M. Shafiqul Islam, M. Rahman, M.S. Ahmad and MN Ahmad.

Affiliation: School of Bioprocess Engineering, Centre of Excellence for Advanced Sensor Technology, Universiti Malaysia Perlis, 01000, Kangar, Perlis, Malaysia.

Abstract

α -glucosidase (AG) enzyme was immobilized onto amine functionalized multi-walled carbon nanotubes (MWCNTs-NH2) by treatment with cross linkers, 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide (EDC) and N-hydroxysuccinimide (NHS) via amide bonding. The immobilized AG was characterized by Fourier Transform Infrared Spectroscopy (FTIR) and Scanning Electron Microscope (SEM). The performance of the electrode was evaluated by Spectrophotometric method and cyclic voltammetric (CV) method using p-nitrophenyl-α -D-glucopyranoside (PNPG) as a substrate. The immobilized AG enzyme retains about 84.16% activity of its initial response even after 30 days when stored at 4°C.




Keywords:

Cyclic voltammetry, functionalization, α -glucosidase, immobilization.



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Article Details

Volume: 10
Issue Number: 5
First Page: 730
Last Page: 735
Page Count: 6
DOI: 10.2174/1573413710666140116213526
Price: $58
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