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Proceedings Paper

Electronic properties of DNA-surfactant complex and its application to DNA-based bio-organic field effect transistor memory
Author(s): Lijuan Liang; Tomoyoshi Yukimoto; Sei Uemura; Toshihide Kamata; Kazuki Nakamura; Norihisa Kobayashi
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Paper Abstract

The bio-organic thin film transistor (BiOTFT) with the DNA and DNA-surfactant complex as a dielectric layer shows memory function. In order to investigate the effect of surfactant structure on the OTFT memory device performance, different kinds of surfactant were introduced. Cetyltrimethylammonium chloride (CTMA), Lauroylcholine chloride (Lau) or Octadecyltrimethylammonium chloride (OTMA) as the cationic surfactant was mixed with DNA to prepare the DNA complex through the electrostatic interaction. In addition, the different molecular weight DNA also has been studied to analyze the effect of DNA chain length on the performance of the physical property. Many kinds of methods including UV-vis, Circular dichiroism (CD), I-V characteristic and atomic force microscope (AFM) have been applied to analyze the property of DNA complex. In conclusion, all of DNA complex with CTMA, OTMA and Lau were revealed to work as the bio-organic thin film transistor memory, and the device fabricated by Lau has the highest ON current and showed better device performance.

Paper Details

Date Published: 10 October 2012
PDF: 9 pages
Proc. SPIE 8464, Nanobiosystems: Processing, Characterization, and Applications V, 846406 (10 October 2012); doi: 10.1117/12.932267
Show Author Affiliations
Lijuan Liang, Chiba Univ. (Japan)
Tomoyoshi Yukimoto, Chiba Univ. (Japan)
Sei Uemura, National Institute of Advanced Industrial Science and Technology (Japan)
Toshihide Kamata, National Institute of Advanced Industrial Science and Technology (Japan)
Kazuki Nakamura, Chiba Univ. (Japan)
Norihisa Kobayashi, Chiba Univ. (Japan)

Published in SPIE Proceedings Vol. 8464:
Nanobiosystems: Processing, Characterization, and Applications V
Norihisa Kobayashi; Fahima Ouchen; Ileana Rau, Editor(s)

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