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| Presentation | 2013-04-26 09:50 Orientation of a bacteriorhodopsin thin film deposited by dip coating technique -- Chirality in SHG and absolute orientation -- Toshiki Yamada, Yoshihiro Haruyama, Katsuyuki Kasai, Toshifumi Terui, Shukichi Tanaka, Takahiro Kaji (NICT), Hiroshi Kikuchi (NHK), Akira Otomo (NICT)  SDM2013-3 OME2013-3 |
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| 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 transient photo-current signal under the “on” or “off” of photo-irradiation. It is important to understand the orientation of bRs in the bR thin film for evaluating such devices and elucidating the transient photo-current signal characteristics. In this paper, we show that by observing SHG interference the bR thin films prepared by a simple dip coating technique have a polar orientation with chiral C symmetry. We found some characteristic phenomena in the chiral SHG by observing the interference by using two coupled chiral SH active films. Furthermore, we performed SHG interference measurements to clarify the absolute orientation of bRs in the bR thin film, and found that bRs tend to have a preference to orient with the cytoplasmic side away from the substrate and extracellular side toward the substrate. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Bacteriorhodopsin / SHG interference / dip-coating technique / chiral SHG / Absolute orientation / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 113, no. 18, OME2013-3, pp. 9-13, April 2013. | |
| Paper # | OME2013-3 | |
| Date of Issue | 2013-04-18 (SDM, OME) | |
| ISSN | Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 | |
| Copyright and 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) | |
| Download PDF | SDM2013-3 OME2013-3 |
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| Conference Information | |
| Committee | OME SDM |
| Conference Date | 2013-04-25 - 2013-04-26 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Yakusima Environmental Culture Village Center |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Advanced Thin-Film Devices (Si, Compound, Organic), biotechnology, Materials, Measurement Technique and Related Topics |
| Paper Information | |
| Registration To | OME |
| Conference Code | 2013-04-OME-SDM |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Orientation of a bacteriorhodopsin thin film deposited by dip coating technique |
| Sub Title (in English) | Chirality in SHG and absolute orientation |
| Keyword(1) | Bacteriorhodopsin |
| Keyword(2) | SHG interference |
| Keyword(3) | dip-coating technique |
| Keyword(4) | chiral SHG |
| Keyword(5) | Absolute orientation |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 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 | Toshifumi Terui |
| 4th Author's Affiliation | National Institute of Information and Communications Technology (NICT) |
| 5th Author's Name | Shukichi Tanaka |
| 5th Author's Affiliation | National Institute of Information and Communications Technology (NICT) |
| 6th Author's Name | Takahiro Kaji |
| 6th Author's Affiliation | National Institute of Information and Communications Technology (NICT) |
| 7th Author's Name | Hiroshi Kikuchi |
| 7th Author's Affiliation | NHK Science & Technology Research Laboratories (NHK) |
| 8th Author's Name | Akira Otomo |
| 8th Author's Affiliation | National Institute of Information and Communications Technology (NICT) |
| Speaker | Author-1 |
| Date Time | 2013-04-26 09:50:00 |
| Presentation Time | 25 minutes |
| Registration for | OME |
| Paper # | SDM2013-3, OME2013-3 |
| Volume (vol) | vol.113 |
| Number (no) | no.17(SDM), no.18(OME) |
| Page | pp.9-13 |
| #Pages | 5 |
| Date of Issue | 2013-04-18 (SDM, OME) |
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