Title: Color and shape changing polymeric ribbons and sheets

Abstract

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.

Inventors:

Stevens, Raymond C.; Cheng, Quan; Song, Jie

Issue Date:

2006-05-23

Research Org.:

Univ. of California, Oakland, CA (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1175751

Patent Number(s):

7049152

Assignee:

University Of California, The Regents Of

Patent Classifications (CPCs):

B - PERFORMING OPERATIONS B82 - NANOTECHNOLOGY B82Y - SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES

G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES

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B - PERFORMING OPERATIONS B82 - NANOTECHNOLOGY B82Y - SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES

B82Y10/00 - Nanotechnology for information processing, storage or transmission, e.g. quantum computing or single electron logic
B82Y5/00 - Nanobiotechnology or nanomedicine, e.g. protein engineering or drug delivery

G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES

G01N31/221 - {for investigating pH value}
G01N33/52 - Use of compounds or compositions for colorimetric, spectrophotometric or fluorometric investigation, e.g. use of reagent paper {and including single- and multilayer analytical elements

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10S - TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS

Y10S436/805 - Optical property
Y10S436/811 - Test for named disease, body condition or organ function
Y10S436/817 - Steroids or hormones
Y10S436/829 - Liposomes, e.g. encapsulation

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DOE Contract Number:  

AC03-76SF00098

Resource Type:

Patent

Country of Publication:

United States

Language:

English

Subject:

36 MATERIALS SCIENCE