Analysis of curcumin precipitation and coating on lactose by the integrated supercritical antisolvent-fluidized bed process

Supercritical antisolvent precipitation of PHBV microparticles.

The micronization of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) from organic solutions using supercritical antisolvent (SAS) technique has been successfully achieved. SAS experiments were carried out at different operational conditions and microspheres with mean diameters ranging from 3 to 9 microm were obtained. The effect of CO(2) and liquid flow, temperature and pressure on particle...

Purification and Simultaneous Micronization of Polymers by Supercritical Antisolvent Precipitation

One of the most important environmental concerns for the polymer industry is to produce new products with near-zero residual monomer content. A new process based on supercritical CO2 has been successfully tested for the extraction of the residual monomer and the simultaneous micronization of the polymer. The process has been tested on a pilot-scale plant. The reduction of methyl methacrylate (M...

Effect of Process Variables on Growth Kinetics of Lactose Particles in a Wet Spray Fluidized Bed Granulator

the effect of keeping reflective journals by language instructors on the process of reading comprehension among iranian high school students

خواندن ودرک مطلب از مهمترین مهارتها در یادگیری زبان خارجی محسوب می شود. این تحقیق تاثیر برگه های تامل برانگیز هدایت شده را در ارتقاع مهارت خواندن ودر ک مطلب در دانش اموزان دبیرستانی ایرانی بررسی می نماید. ازمجموع ?2 دانش آموز سال چهارم دبیرستان شهید رجایی شهرستان اسلامشهر¸ پس از اجرای آزمون استاندارد ((nelson 150a تعداد 39 دانش آموز که نمرات آنها یک سطح انحراف معیار بالاتر یا پایین تر ازمعدل قر...

Polymer Encapsulation of Fine Particles by a Supercritical Antisolvent Process

Coating and encapsulation of fine particles with polymer using a supercritical antisolvent (SAS) coating process was investigated in this research. Synthesized submicron silica particles were used as host particles and poly(lactide-co-glycolide) (PLGA), a biodegradable polymer used for controlled release of drugs, was chosen as the coating material. In the SAS coating process a suspension of si...