Protein-Based Multi-Bit Biomemory Device Consisting of Various Metalloproteins on Self-Assembled 11-MUA Layer

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A multi-bit biomemory device was devised by introducing 4 different metalloproteins (azurin, cytochrome c, ferredoxin, myoglobin) to an electronic device using 11-MUA (11-mercaptoundecanoic acid) as the chemical linker. The immobilization of the 4 different self-assembled protein layers on a Au substrate via 11-MUA were confirmed by Raman spectroscopy and atomic force microscopy (AFM). The redox properties of these 4 different protein layers immobilized onto Au surface were assessed by cyclic voltammetry (CV). In addition, their memory functions were verified by chronoamperometry (CA). Based on these results, we demonstrated that a multi-bit biomemory concept could be realized using various metalloproteins as active materials.


Document Type: Research Article


Publication date: January 1, 2011

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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