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Paper Abstract and Keywords
Presentation 2015-10-23 16:15
Fabrication of bacteriorhodopsin (bR) thin films by wire-bar coating technique and evaluation of differential photocurrent response in its bR photocells
Toshiki Yamada, Yoshihiro Haruyama, Katsuyuki Kasai, Takahiro Kaji, Yukihiro Tominari, Shukichi Tanaka, Akira Otomo (NICT) OME2015-59
Abstract (in Japanese) (See Japanese page) 
(in English) Bacteriorhodopsin (bR) is a protein containing a covalently bound protonated Schiff base retinal chromophore, found in the purple membrane of Halobacterium salinarium. It is well-known that the bR exhibits a light-driven proton pump function, and photo-sensor devices having the bR thin film show a time-differential photo-current signal under the “ON” or “OFF” of photo-irradiation. We previously observed a transient photo-current signal under the ON/OFF of photo-irradiation for a photo-cell that has a bR thin film prepared by the dip coating technique. We also studied on the effective generation of the time-differential photo-current signal, and developed new photo-sensor devices using the unique characteristics. In this paper, we prepared a bR thin film by the wire-bar coating technique, and investigated the transient photo-current characteristics of the bR photocell. The transient photo-current signal of bR photocells prepared by the wire-bar coating technique and the dip coating technique was compared. We found an almost identical transient photo-current signal both for the wire-bar coating technique and the dip coating technique, while the thickness of bR thin film prepared by the wire-bar coating technique is thinner than that prepared by the dip-coating technique. The data indicates the effective generation of the time-differential photo-current signal and is significant toward various applications of bR photo-sensor devices.
Keyword (in Japanese) (See Japanese page) 
(in English) Bacteriorhodopsin / time-differential photo-current / dip coating technique / wire-bar coating technique / / / /  
Reference Info. IEICE Tech. Rep., vol. 115, no. 265, OME2015-59, pp. 47-51, Oct. 2015.
Paper # OME2015-59 
Date of Issue 2015-10-16 (OME) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
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reproduction		 All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
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Conference Information
Committee OME  
Conference Date 2015-10-23 - 2015-10-23 
Place (in Japanese) (See Japanese page) 
Place (in English) Osaka Univ. Nakanoshima Center 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Organic devices and sensors, etc. 
Paper Information
Registration To OME 
Conference Code 2015-10-OME 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Fabrication of bacteriorhodopsin (bR) thin films by wire-bar coating technique and evaluation of differential photocurrent response in its bR photocells 
Sub Title (in English)  
Keyword(1) Bacteriorhodopsin  
Keyword(2) time-differential photo-current  
Keyword(3) dip coating technique  
Keyword(4) wire-bar coating technique  
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1st Author's Name Toshiki Yamada  
1st Author's Affiliation National Institute of Information and Communications Technology (NICT)
2nd Author's Name Yoshihiro Haruyama  
2nd Author's Affiliation National Institute of Information and Communications Technology (NICT)
3rd Author's Name Katsuyuki Kasai  
3rd Author's Affiliation National Institute of Information and Communications Technology (NICT)
4th Author's Name Takahiro Kaji  
4th Author's Affiliation National Institute of Information and Communications Technology (NICT)
5th Author's Name Yukihiro Tominari  
5th Author's Affiliation National Institute of Information and Communications Technology (NICT)
6th Author's Name Shukichi Tanaka  
6th Author's Affiliation National Institute of Information and Communications Technology (NICT)
7th Author's Name Akira Otomo  
7th Author's Affiliation National Institute of Information and Communications Technology (NICT)
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Speaker Author-1 
Date Time 2015-10-23 16:15:00 
Presentation Time 25 minutes 
Registration for OME 
Paper # OME2015-59 
Volume (vol) vol.115 
Number (no) no.265 
Page pp.47-51 
#Pages 5 
Date of Issue 2015-10-16 (OME) 

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