Coulter Counter measurements of solubility and dissolution rate of sparingly soluble compounds using micellar solutions*

1986 ◽  
Vol 38 (6) ◽  
pp. 420-425 ◽  
Author(s):  
C. Nyström ◽  
M. Bisrat
Keyword(s):  
Dissolution Rate ◽  
Coulter Counter ◽  
Micellar Solutions

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.

Letter to the Editor: Interference of Schistocytes in a Platelet Count by a Beckman Coulter Counter

2006 ◽  
Vol 12 (4) ◽  
pp. 242-243
Author(s):  
Ferran Vall-Llovera ◽  
José-Tomas Navarro ◽  
Jose-Maria Ribera ◽  
Natalia Lloveras ◽  
Jordi Junca ◽  
...  
Keyword(s):  
Platelet Count ◽  
Coulter Counter ◽  
Letter To The Editor

Dissolution Rate of Copper in Lead and Aluminum Melts

1994 ◽  
Vol 80 (4) ◽  
pp. 294-299
Author(s):  
Katsumi MORI ◽  
Toshiro KITAHARA ◽  
Kunihiko NAKASHIMA
Keyword(s):  
Dissolution Rate

Studies on the Preparation, Characterization and Solubility of -Cyclodextrin-Roxythromycin Inclusion Complexes

2009 ◽  
Vol 2 (2) ◽  
pp. 523-530
Author(s):  
D. Nagasamy Venkatesh ◽  
S. Karthick ◽  
M. Umesh ◽  
G. Vivek ◽  
R.M. Valliappan ◽  
...  
Keyword(s):  
Dissolution Rate ◽  
Inclusion Complexes ◽  
Phase Solubility ◽  
X Ray Diffraction ◽  
Scanning Calorimetry ◽  
X Ray ◽  
Ir Studies ◽  
Poorly Soluble ◽  
Poorly Soluble Drug

Roxythromycin/ β-cyclodextrin (Roxy/ β-CD) dispersions were prepared with a view to study the influence of β-CD on the solubility and dissolution rate of this poorly soluble drug. Phase-solubility profile indicated that the solubility of roxythromycin was significantly increased in the presence of β-cyclodextrin and was classified as AL-type, indicating the 1:1 stoichiometric inclusion complexes. Physical characterization of the prepared systems was carried out by differential scanning calorimetry (DSC), X-ray diffraction studies (XRD) and IR studies. Solid state characterization of the drug β-CD binary system using XRD, FTIR and DSC revealed distinct loss of drug crystallinity in the formulation, ostensibly accounting for enhancement of dissolution rate.

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