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Elastic positively-charged liposomes of soya lecithin were prepared using sucrose monopalmitate as deforming agent, and l-alanine benzyl ester or stearylamine as cationic charge-inducing agent. The positive charge of the liposomes was confirmed by zeta potential measurements and their elasticity by filtration through microporous filter. Positively-charged liposomes had a higher acyclovir entrapment...
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