Polylactic acid or polylactide (PLA) can form amorphous, semicrystalline, highly crystalline structure. In this paper, we provide a model for semicrystalline PLA under strain-induced dual-phase transformation, between mesomorphization and crystallization. the proposed constitutive model, use an internal state variable approach by considering initial microstructure, intermolecular features, pref...

Cellulose is the most abundant and renewable natural semi-crystalline polysaccharide. This biopolymer an inexhaustible source of fibers (NFs), valuable raw material for production microparticles microcrystalline (MCC) powdered cellulose (PC), as well other micro-products, which are widely used in biomedicine, food additives, plastics, materials. In addition, has a nano-fibrillar architecture th...

In the present paper, using a cathodic pin-to-solution electrical discharge electrolysis setup, interaction of the atmospheric air plasma with aqueous solution of copper nitrate and its possibility for synthesis of nano-materials is investigated. An AC (50 Hz) high-voltage power supply (5 kV) with rectified current is used for electrical discharge of the air between a metal pin and the solution...

The aim of this study is to evaluate and compare the oral bioavailability nanonized progesterone (nano-PG) micronized (micro-PG) sustained release tablet formulation in healthy pregnant rabbits. High pressure compressed gas technology reduces particle size from 1.72 ± 2.5 μm 800 35 nm (nano-PG). DSC XRD showed that both micro-PG nano-PG were crystalline exist as form I. Higher melting enthalpy ...