The fabrication of functional biosurface composed of iron storage protein, ferritin

A functional biosurface applicable to a biomemory device was fabricated using ferritin, which is one of the globular protein complexes consisting of 24 protein subunits, which can be classified as metalloproteins. For the fabrication of uniform ferritin layer, 11-MUA(11-mercaptoundecanoic acid) was...

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Bibliographic Details
Published in:Ultramicroscopy 2008-09, Vol.108 (10), p.1356-1359
Main Authors: Choi, Jeong-Woo, Kim, Young Jun, Kim, Sang-Uk, Min, Junhong, Oh, Byung-Keun
Format: Article
Language:English
Subjects:
Biomemory
Cyclic voltammetry (CV)
Electrochemistry - instrumentation
Electrochemistry - methods
Electrodes
Ferritin
Ferritins - chemistry
Gold - chemistry
Iron - chemistry
Microscopy, Scanning Tunneling - methods
Scanning tunneling microscopy (STM)
Surface plasmon resonance (SPR)
Surface Plasmon Resonance - instrumentation
Surface Plasmon Resonance - methods
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Summary:A functional biosurface applicable to a biomemory device was fabricated using ferritin, which is one of the globular protein complexes consisting of 24 protein subunits, which can be classified as metalloproteins. For the fabrication of uniform ferritin layer, 11-MUA(11-mercaptoundecanoic acid) was used as a linker material. The formation of the ferritin layer was confirmed by surface plasmon resonance (SPR) spectroscopy, and the morphology of the immobilized ferritin was analyzed by scanning tunneling microscopy (STM). The electrochemical redox property investigation was accomplished by the cyclic voltammetry (CV) technique. These results of adsorbed ferritin on the modified electrode can be used for the fabrication of bioelectronics.
ISSN:0304-3991
1879-2723
DOI:10.1016/j.ultramic.2008.04.046