An original paper of Mr. Satoshi Honda (Ph.D. student), Dr. Takuya Yamamoto, and Prof. Yasuyuki Tezuka has been published online in Journal of the American Chemical Society on July 13, 2010 and highlighted in Nature, 29 July 2010.

Title:Topology-Directed Control on Thermal Stability: Micelles Formed from Linear and Cyclized Amphiphilic Block Copolymers

Authors:Satoshi Honda, Takuya Yamamoto, Yasuyuki Tezuka

J. Am. Chem. Soc. 2010,132, 10251-10253, DOI: 10.1021/ja104691j.

Research Highlight"MATERIALS SCIENCE: Shape shifts heat tolerance"Nature 2010, 466, 534

You can also see a summary here.