NDLI: DNA gel particles from single and double-tail surfactants: supramolecular assemblies and release characteristics

Content Provider	Royal Society of Chemistry (RSC)
Author	Morán, M. Carmen Lindman, Björn Miguel, M. Graça
Copyright Year	2011
Abstract	Cationic surfactants with one alkyl chain have offered a particularly efficient control of the properties of DNA-based particles. However, most transfection lipids do not form micelles as single-chain surfactants. In this work, the formation of DNA gel particles mixing DNA (either single- (ssDNA) or double-stranded (dsDNA)) with the vesicle-forming double chain surfactant didodecyldimethylammonium bromide (DDAB) is described. For comparative purposes, the formation of DNA gel particles using the single chain surfactant dodecyltrimethylammonium bromide (DTAB) has been investigated. Results on the encapsulation of DNA and its release are strongly dependent on the surfactant structure. DDAB–DNA gel particles have been shown to form ordered multi-vesicular assemblies which resemble the architecture of biological tissues. The characteristic sizes and shapes of the resulting structures strongly depend on the secondary structure of the DNA. Some features about the DNA–vesicle interaction involved in these particles have been deduced from direct optical, fluorescence and electron microscopy observations.
Starting Page	2001
Ending Page	2010
Page Count	10
File Format	HTM / HTML PDF
ISSN	1744683X
Volume Number	7
Issue Number	5
Journal	Soft Matter
DOI	10.1039/c0sm00988a
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Nucleic acid structure Transfection Transmission electron microscopy Alkyl DNA Fluorescence SoltyRei Surfactant Bromide
Content Type	Text
Resource Type	Article
Subject	Chemistry Condensed Matter Physics

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