Complexation of DNA with cationic surfactant
نویسندگان
چکیده
منابع مشابه
Complexation of DNA with Cationic Surfactant
Transfection of an anionic polynucleotide through a negatively charged membrane is an important problem in genetic engineering. The direct association of cationic surfactant to DNA decreases the effective negative charge of the nucleic acid, allowing the DNA-surfactant complex to approach a negatively charged membrane. The paper develops a theory for solutions composed of polyelectrolyte, salt,...
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The aggregation of the cationic polymer-plasmid DNA complexes of two commonly used polymers, polyethyleneimine (PEI) and poly-l-lysine (PLL) were systematically compared. The complexation was studied in 5% glucose solution at 25 degrees C using dynamic light scattering and isothermal titration calorimetry. The aggregation of the complexes was controlled by addition of the surfactant polyoxyethy...
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Developments in gene therapy have led to a need for new and more efficient transfection vectors. So far, the use of viruses has received major attention. During the recent years, however, cationic liposomes have emerged as a potential rival for viruses and have several advantages, e.g. nonimmunogenity, low toxicity and a capability to carry larger amounts of DNA. Yet, the properties of cationic...
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Complexes of cationic liposomes with DNA are promising tools to deliver genetic information into cells for gene therapy and vaccines. Electrostatic interaction is thought to be the major force in lipid-DNA interaction, while lipid-base binding and the stability of cationic lipid-DNA complexes have been the subject of more debate in recent years. The aim of this study was to examine the complexa...
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A water-soluble cationic porphyrin, 5,10,15,20-Tetra(N-methylpyridinium-4-yl)-21H,23H-porphyrin has been shown to intercalate selectively into the A3-G4 gap of C-quadruplexed DNA d(TTAGGG)4.
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ژورنال
عنوان ژورنال: Physica A: Statistical Mechanics and its Applications
سال: 1999
ISSN: 0378-4371
DOI: 10.1016/s0378-4371(99)00184-3