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Vandenbulcke K., Horvat L. I., De Mil M., Slegers G., Beele H. (2006)

Evaluation of the antibacterial activity and toxicity of 2 new hydrogels: a pilot study.
Int J Low Extrem Wounds 5: 109-114.

The cytotoxicity and physical properties of various submicron O/W emulsions and solid lipid nanoparticles for dermal applications were investigated. Droplet size and zetapotential of submicron emulsions depended on the composition of the cosurfactant blend used.

The viability of J774 macrophages, mouse 3T3 fibroblasts and HaCat keratinocytes was significantly reduced in the presence of stearylamine. Nanoparticles consisting of stearic acid or different kinds of adeps solidus could be manufactured when formulated with lecithin, sodium taurocholate, polysorbate 80 and stearylamine. Survival of macrophages was highly affected by stearic acid and stearylamine. In general a viability of more than 90% was observed when semi-synthetic glycerides or hard fat was employed to formulate nanoparticles.

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