Hairless mice were treated in vivo with empty phospholipid and ‘skin lipid’ liposomes, respectively. The deposition of a hydrophobic drug (hydrocortisone) and a hydrophilic drug (inulin) was investigated in both treated and untreated skin. It was found that drugs should be encapsulated in liposomes or at least be administered together with the lipid, to achieve targeted drug delivery. Pretreatm...

Two types of polymer-drug conjugates were synthesized starting from styrene-maleic acid anhydride copolymer (SMA). Fenoprofen and gemfibrozil were chosen as model drugs because of their short plasma half lives. Both drugs were first converted to their 2-aminoethylamides, which possess free amino groups capable of reacting with SMA anhydride rings. By modifying the degree and type of substitutio...

The hydrophilic desferrioxamine (DFO) and the lipophilic salicylaldehyde isonicotinoyl hydrazone (SIH) are iron chelators which inhibit in vitro proliferation of Plasmodium falciparum with similar potency (IC50 approximately 20 microM in 24- to 48-h tests). The in vivo assessment of these drugs was performed on Swiss mice infected with Plasmodium vinckei petteri with novel modes of drug adminis...

The objective of this work was to develop sustained release formulation for hydrophilic drugs with minimal burst effects. For this purpose, nanoparticles of a hydrophilic drug were produced using supercritical CO2, which were then encapsulated into polymer microparticles using an anhydrous method, followed by studying their sustained in-vitro drug release. A hydrophilic drug, dexamethasone phos...

Liposomes are spherically shaped phospholipid bilayers that used to encapsulate hydrophilic or lipophilic drugs. To have efficient drug delivery by a liposome, it should be able deliver the specific binding site, where can affect target. However, sometimes, due untimely release, this goal cannot achieved. Therefore, permeation rate of through liposomal membrane is important, as affects drug’s r...