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Color and shape changing polymeric ribbons and sheets

United States Patent

May 23, 2006
View the Complete Patent at the US Patent & Trademark Office
Lawrence Berkeley National Laboratory - Visit the Technology Transfer and Intellectual Property Management Department Website
The present invention herein provides the design, synthesis and characterization of compositions comprising asymmetric bolaamphiphilic lipids that form extended polymeric ribbons and wide sheets. These compositions may be doped, or interspersed, with various compounds to fine-tune the fluidity and rigidity of the bolaamphiphilic lipid composition, and promote other morphologies of the composition, including fluid vesicles and truncated flat sheets. Upon an increase in pH these compositions undergo a calorimetric and morphological transformation.
Stevens; Raymond C. (La Jolla, CA), Cheng; Quan (Riverside, CA), Song; Jie (Fremont, CA)
The Regents of the University of California (Oakland, CA)
10/ 096,569
March 12, 2002
STATEMENT OF GOVERNMENT SUPPORT This invention was made during work supported by the U.S. Department of Energy under Contract No. DE-AC03-76SF00098. The government has certain rights in this invention.