Intracellular accumulation of ofloxacin-loaded liposomes in human synovial fibroblasts.

AUTOR(ES)

Fresta, M

RESUMO

In order to incorporate ofloxacin within liposomes, the reverse-phase evaporation technique was carried out. The liposome lipid matrix consisted of dipalmitoylphosphatidylcholine-cholesterol-dihexadecylphosphate (4: 3:4 molar ratio). The liposome formulation presented a mean size of 185 +/- 31 nm and had an encapsulation capacity of 5.3 microliters/mumol. The liposome formulation was able to deliver ofloxacin into McCoy cells in a greater amount (2.6-fold) than the free drug, improving antibiotic accumulation.

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