Biopolymer nanoparticles (NPs) produced from poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) are typically formed by first dissolving the polymer in organic solvents. In order to eliminate use of toxic solvents, an alternative “green” solvent system using glacial acetic acid was used this study for preparation NPs via nanoprecipitation. The influence various factors on resulting particle si...

The equilibrium properties of a tangent-hard-sphere polymer chain in a hard sphere monomer solvent are studied using a Born-Green-Yvon integral equation in conjunction with a two-site solvation potential. The solvation potential is constructed using low density results for a hard-sphere trimer in a hard sphere solvent. The BGY equation has been solved for polymers of lengths up to 100 for a ran...

objective(s): it has been suggested that the efficiency of dry poder inhaler (dpi) is generally low. therefore, the aim of the present research work was to use the solvent treatment of the carrier in dpiformulations to see the possibility of inducing desirable characteristics.   materials and methods: lactose sieve fractions of 63-90 μm were submerged in ethanol or 80% v/v ethanol, methanol or ...