Determination of DNA entrapment into liposomes using short monolithic columns (CROSBI ID 126528)
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Brgles, Marija ; Halassy, Beata ; Tomašić, Jelka ; Šantak, Maja ; Forčić, Dubravko ; Barut, Miloš ; Štrancar, Aleš
engleski
Determination of DNA entrapment into liposomes using short monolithic columns
A high-performance liquid chromatography (HPLC) method for the determination of DNA entrapment efficiency in liposomes has been developed. Plasmid DNA was encapsulated into positively charged liposomes. Non-entrapped DNA was separated by ultracentrifugation from liposomes and supernatant was chromatographed on CIM DEAE disk. The elution of DNA was monitored by the absorbance at 260 nm and the quantity of DNA in the tested sample was calculated from the integrated peak areas using the appropriate standard curve. This method is fast, simple, precise, and does not require any kind of DNA labelling in contrast with mostly used methods for determination of DNA entrapment efficiency.
entrapment efficiency; liposomes; CIM disk; plasmid DNA
2nd Summer School on Monolith Technology for Biochromatography, Bioconversion and Solid-Phase Synthesis ; Portorož, Slovenija ; 28-31.05.2006. ; Eds.: Jungbauer, A., Josić, D., Tennikova, T.B.
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Podaci o izdanju
Povezanost rada
Kemija, Temeljne medicinske znanosti