IN VITRO RELEASE OF HYDROCORTISONE BY GLYCINE-IMMOBILIZED EVAL MEMBRANE

5-Aminosalicyclic acid permeability enhancement by a pH-sensitive EVAL membrane

A pH-sensitive membrane for colon-specific drug delivery was synthesized by the covalent bonding of glycine on the poly(ethylene-co-vinyl alcohol) (EVAL) membrane via isocyanation of surface hydroxyl groups and subsequent conversion to activated ester. The processes of surface modification would not change the membrane structure under the observable detection sensitivity of the scanning electro...

‏‎suppression of coke formation in thermal cracking by coke inhibitors‎‏

‏‎the main purpose of this research was to:1.develop a coking model for thermal cracking of naphtha.2.study coke inhibition methods using different coke inhibitors.developing a coking model in naphtha cracking reactors requires a suitable model of the thermal cracking reactor based on a reliable kinetic model.to obtain reliable results all these models shall be solved simultaneously.for this pu...

study of cohesive devices in the textbook of english for the students of apsychology by rastegarpour

this study investigates the cohesive devices used in the textbook of english for the students of psychology. the research questions and hypotheses in the present study are based on what frequency and distribution of grammatical and lexical cohesive devices are. then, to answer the questions all grammatical and lexical cohesive devices in reading comprehension passages from 6 units of 21units th...

Selective Transport of Propylene by Silver Ion Complex Through an Immobilized Liquid Membrane

Self-emulsifying oils for ocular drug delivery. II. In vitro release of indomethacin and hydrocortisone.

The objective of this study was to compare the in vitro release of indomethacin and hydrocortisone from self-emulsifying drug delivery systems (SEDDS) and aqueous or oily suspensions. SEDDS carriers were obtained by dissolving Cremophor EL, Tween 20 or Span 80 in Miglyol oil. The release experiment was performed over 6 h using a dialysis cellulose membrane and acceptor fluid imitating compositi...