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Paper Abstract and Keywords
Presentation 2008-01-11 13:50
In-situ Observation of Growth Process of Polypeptide Thin Film by Surface-Initiated Deposition Polymerization
Kenta Ogura (Tokyo Univ. Agri. & Technol.), Hattice Duran (Max-Planck Inst.), Rigoberto C. Advincula (Univ. Houston), Kuniaki Tanaka, Hiroaki Usui (Tokyo Univ. Agri. & Technol.) OME2007-70
Abstract (in Japanese) (See Japanese page) 
(in English) Polypeptide thin films have been prepared on gold surfaces by an all dry vacuum process by evaporating polymerization initiator followed by amino acid anhydride. The film growth process was observed by in-situ surface plasmon resonance (SPR). In the first stage, amino ethane thiol (AET) was deposited on gold surface as a polymerization initiator. Although conventional vapor deposition failed in accumulating AET films, growth of AET films was made possible by utilizing hot-filament assist in the course of AET evaporation. In the second stage, γ-benzyl-L-glutaminate N-carboxy anhydride (NCA) was evaporated on the AET films. The growth process of NCA film was dependent on the AET thickness. When the AET thickness was smaller than 15 nm, uniform thin polypeptide films grew in proportion to the deposition time. When the AET layer was thicker than 20 nm, on the other hand, the polypeptide grew in two stages; uniform planar growth up to 50 nm, followed by rapid growth of instable film. It was concluded that hot-filament-assisted deposition of thin AET layer followed by vapor deposition of NCA enables to form uniform polypeptide thin films by an all dry physical vapor deposition process.
Keyword (in Japanese) (See Japanese page) 
(in English) deposition polymerization / surface-initiated polymerization / polypeptide / physical vapor deposition / surface plasmon / / /  
Reference Info. IEICE Tech. Rep., vol. 107, no. 412, OME2007-70, pp. 13-18, Jan. 2008.
Paper # OME2007-70 
Date of Issue 2008-01-04 (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 2008-01-11 - 2008-01-11 
Place (in Japanese) (See Japanese page) 
Place (in English) Kikai-Shinko-Kaikan Bldg. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) organic materials and devices, etc. 
Paper Information
Registration To OME 
Conference Code 2008-01-OME 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) In-situ Observation of Growth Process of Polypeptide Thin Film by Surface-Initiated Deposition Polymerization 
Sub Title (in English)  
Keyword(1) deposition polymerization  
Keyword(2) surface-initiated polymerization  
Keyword(3) polypeptide  
Keyword(4) physical vapor deposition  
Keyword(5) surface plasmon  
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Keyword(7)  
Keyword(8)  
1st Author's Name Kenta Ogura  
1st Author's Affiliation Tokyo University of Agriculture and Technology (Tokyo Univ. Agri. & Technol.)
2nd Author's Name Hattice Duran  
2nd Author's Affiliation Max-Planck Institute for Polymer Science (Max-Planck Inst.)
3rd Author's Name Rigoberto C. Advincula  
3rd Author's Affiliation University of Houston (Univ. Houston)
4th Author's Name Kuniaki Tanaka  
4th Author's Affiliation Tokyo University of Agriculture and Technology (Tokyo Univ. Agri. & Technol.)
5th Author's Name Hiroaki Usui  
5th Author's Affiliation Tokyo University of Agriculture and Technology (Tokyo Univ. Agri. & Technol.)
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Speaker Author-5 
Date Time 2008-01-11 13:50:00 
Presentation Time 25 minutes 
Registration for OME 
Paper # OME2007-70 
Volume (vol) vol.107 
Number (no) no.412 
Page pp.13-18 
#Pages 6 
Date of Issue 2008-01-04 (OME) 

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