4.7 Article

Zwitterionic sulfobetaine lipids that form vesicles with salt-dependent thermotropic properties

Journal

CHEMICAL COMMUNICATIONS
Volume 47, Issue 47, Pages 12613-12615

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c1cc15804j

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Funding

  1. National Science Foundation
  2. NIH [EB003008, GM061851]
  3. Pfizer
  4. NATIONAL INSTITUTE OF BIOMEDICAL IMAGING AND BIOENGINEERING [R01EB003008] Funding Source: NIH RePORTER
  5. NATIONAL INSTITUTE OF GENERAL MEDICAL SCIENCES [R01GM061851] Funding Source: NIH RePORTER

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We describe a class of zwitterionic sulfobetaine (SB) lipids with fascinating salt-dependent properties. SB lipids are zwitter-neutral across a broad pH range; however they have negative surface potentials in the presence of anions and two salt-dependent transition temperatures. These new SB lipids provide insight on the role of charge orientation at the membrane interface and may be useful components in drug delivery systems.

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