Characterization and pharmacokinetic study of itraconazole solid dispersions prepared by solvent-controlled precipitation and spray-dry methods

2017 ◽  
Vol 69 (12) ◽  
pp. 1707-1715 ◽  
Author(s):  
Taehoon Sim ◽  
Chaemin Lim ◽  
Jun Won Lee ◽  
Dong Wuk Kim ◽  
Youngsam Kim ◽  
...  
Keyword(s):  
Pharmacokinetic Study ◽  
Solid Dispersions ◽  
Spray Dry ◽  
Controlled Precipitation

scholarly journals Characterization and Pharmacokinetic Study of Aprepitant Solid Dispersions with Soluplus®

Molecules ◽  
2015 ◽  
Vol 20 (6) ◽  
pp. 11345-11356 ◽  
Author(s):  
Jinwen Liu ◽  
Meijuan Zou ◽  
Hongyu Piao ◽  
Yi Liu ◽  
Bo Tang ◽  
...  
Keyword(s):  
Pharmacokinetic Study ◽  
Solid Dispersions

A TEM investigation of a hyper-eutectic lead-tin alloy

1988 ◽  
Vol 46 ◽  
pp. 562-563
Author(s):  
John A. Sutliff
Keyword(s):  
Volume Diffusion ◽  
Eutectic Mixture ◽  
Precipitation Reaction ◽  
Directionally Solidified ◽  
X Ray Diffraction ◽  
X Ray ◽  
Transmission Electron ◽  
Diffusion Controlled ◽  
Discontinuous Precipitation Reaction ◽  
Controlled Precipitation

Near-eutectic Pb-Sn alloys are important solders used by the electronics industry. In these solders, the eutectic mixture, which solidifies last, is the important microstructural consituent. The orientation relation (OR) between the eutectic phases has previously been determined for directionally solidified (DS) eutectic alloys using x-ray diffraction or electron chanelling techniques. In the present investigation the microstructure of a conventionally cast, hyper-eutectic Pb-Sn alloy was examined by transmission electron microscopy (TEM) and the OR between the eutectic phases was determined by electron diffraction. Precipitates of Sn in Pb were also observed and the OR determined. The same OR was found in both the eutectic and precipitation reacted materials. While the precipitation of Sn in Pb was previously shown to occur by a discontinuous precipitation reaction,3 the present work confirms a recent finding that volume diffusion controlled precipitation can also occur.Samples that are representative of the solder's cast microstructure are difficult to prepare for TEM because the alloy is multiphase and the phases are soft.

Quantification of annonacin in Rat plasma: Application to pharmacokinetic study

Planta Medica ◽  
2014 ◽  
Vol 80 (16) ◽  
Author(s):  
N Bonneau ◽  
I Schmitz Afonso ◽  
D Touboul ◽  
A Brunelle ◽  
P Champy
Keyword(s):  
Pharmacokinetic Study ◽  
Rat Plasma

Pharmacokinetic study of a galloylquinic acid isolated from Copaifera langsdorffii Desf. leaves

Planta Medica ◽  
2016 ◽  
Vol 81 (S 01) ◽  
pp. S1-S381 ◽  
Author(s):  
J de Carvalho da Costa ◽  
EV da Silva Motta ◽  
F Barreto ◽  
B Verlindo de Araujo ◽  
JK Bastos
Keyword(s):  
Pharmacokinetic Study ◽  
Copaifera Langsdorffii

Solubility Enhancement of Poorly Soluble Drug Simvastatin by Solid Dispersion Technique

2016 ◽  
Vol 2 (2) ◽  
pp. 91-95
Author(s):  
Neelima Rani T ◽  
Pavani A ◽  
Sobhita Rani P ◽  
Srilakshmi N
Keyword(s):  
Dissolution Rate ◽  
Drug Carrier ◽  
Solid Dispersions ◽  
Aqueous Solubility ◽  
Onset Of Action ◽  
Kneading Method ◽  
Wetting Property ◽  
Poorly Soluble ◽  
Dispersion Technique ◽  
Low Solubility

This study aims to formulate solid dispersions (SDs) of Simvastatin (SIM) to improve the aqueous solubility, dissolution rate and to facilitate faster onset of action. Simvastatin is a BCS class II drug having low solubility & therefore low oral bioavailability. In the present study, SDs of simvastatin different drug-carrier ratios were prepared by kneading method. The results showed that simvastatin solubility & dissolution rate enhanced with polymer SSG in the ratio 1:7 due to increase in wetting property or possibly may be due to change in crystallinity of the drug.

Solid Dispersions: A Review

2014 ◽  
Vol 4 (2) ◽  
Author(s):  
Sumant Saini ◽  
Yashwant .
Keyword(s):  
Solid Dispersions ◽  
Physicochemical Characterization ◽  
Water Soluble ◽  
Absolute Minimum ◽  
Technology Transfers ◽  
Molecular Arrangement ◽  
Water Soluble Drugs ◽  
Carrier Solvent ◽  
Preparation Techniques ◽  
Selection Of

Solid dispersions are one of the most promising strategies to improve the oral bioavailability of poorly water soluble drugs. By reducing drug particle size to the absolute minimum, and hence improving drug wettability, bioavailability may be significantly improved. This article reviews the various preparation techniques for solid dispersion and compiles some of the recent technology transfers. The different types of solid dispersions based on the molecular arrangement have been highlighted. Some of the practical aspects to be considered for the preparation of solid dispersions, such as selection of carrier, solvent and methods of physicochemical characterization, along with an insight into the molecular arrangement of drugs in solid dispersions are also discussed. In this review, it is intended to discuss the recent advances related on the area of solid dispersions.

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