Table of Contents Author Guidelines Submit a Manuscript
Research Letters in Materials Science
Volume 2009, Article ID 597308, 4 pages
Research Letter

Application of Thermosensitive Peptide Copolymer Gels to Removal of Endocrine Disruptor

Department of Materials Science, The University of Shiga Prefecture, Hassaka, Hikone 522-8533, Japan

Received 22 April 2009; Accepted 2 July 2009

Academic Editor: Peter Majewski

Copyright © 2009 Satoshi Tanimoto et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Poly(L-leucine)-block-poly(ethylene glycol)-block-poly(L-leucine) triblock copolymers were synthesized by a ring-opening polymerization of 𝛼 -amino acid N-carboxyanhydride with amino-terminated PEG as an initiator. The chloroform solution of these peptide copolymers showed a thermo-sensitive sol-gel transition. The transition temperature varied as a function of the length of peptide segments. Additionally, we used these peptide copolymers to remove an endocrine disruptor such as bisphenol A from its aqueous solution. As a result, it became clear that the peptide copolymer gel used in this study could capture bisphenol A efficiently.