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http://dx.doi.org/10.9713/kcer.2016.54.5.693

Immobilization of Glucose Oxidase using Branched Polyethyleneimines of Various Molecular Weights for Glucose Based Biofuel Cell  

Ahn, Yeonjoo (Graduate School of Energy and Environment, Seoul National University of Science and Technology)
Chung, Yongjin (Graduate School of Energy and Environment, Seoul National University of Science and Technology)
Kwon, Yongchai (Graduate School of Energy and Environment, Seoul National University of Science and Technology)
Publication Information
Korean Chemical Engineering Research / v.54, no.5, 2016 , pp. 693-697 More about this Journal
Abstract
In this study, we fabricated the catalysts for enzymatic biofuel cell anode with carbon nanotube (CNT), glucose oxidase (GOx) and various molecular weights branched poly(ethyleneimine)(bPEI) and terephthalaldehyde (TPA) as cross-linker. In case of GOx/bPEI/CNT using only physical entrapments for immobilization, the molecular weights of bPEI didn't affect to electrochemical performances and long term stability. but that of the catalysts cross linked via TPA (TPA[GOx/bPEI/CNT]) improved and the mass transfer of glucose to FAD was interrupted as increasing of the bPEI's molecular weights. Furthermore, it was confirmed that the optimum molecular weight of PEI for TPA [GOx/bPEI/CNT]) structure is 750k that showed marvelous high performance (maximum power density of $0.995mW{\cdot}cm^{-2}$).
Keywords
Polyethyleneimine; Biofuelcell; Glucose oxidase; Glucose; Protein immobilization;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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