Effect of Non-Solvent Additive on Effectiveness of Polyvinylidene Fluoride Membrane Fabricated With Thermal Induced Phase Separation Method for Carbon Dioxide Absorption

There is increasing interest in composites containing zirconia because of their high strength, fracture toughness, and its great influence on the chemical durability in glass. For the zirconia-silica system, monolithic glasses, fibers and coatings have been obtained. There is currently a great interest in designing zirconia-toughened alumina including exploration of the processing methods and the toughening mechanism.The possibility of forming nanocrystal composites by a phase separation method has been investigated in three systems: zirconia-alumina, zirconia-silica and zirconia-titania using HREM. The morphological observations initially suggest that the formation of nanocrystal composites by a phase separation method is possible in the zirconia-alumina and zirconia-silica systems, but impossible in the zirconia-titania system. The separation-produced grain size in silica-zirconia system is around 5 nm and is more uniform than that in the alumina-zirconia system in which the sizes of the small polyhedron grains are around 10 nm. In the titania-zirconia system, there is no obvious separation as was observed in die alumina-zirconia and silica-zirconia system.

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THERMODYNAMICS AND KINETICS OF AQUEOUS PIPERAZINE WITH POTASSIUM CARBONATE FOR CARBON DIOXIDE ABSORPTION

10.2172/839556 ◽

2005 ◽

Cited By ~ 14

Author(s):

John T. Cullinane

Keyword(s):

Carbon Dioxide ◽

Potassium Carbonate ◽

Carbon Dioxide Absorption ◽

Thermodynamics And Kinetics ◽

Kinetics Of

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FORMULATION AND IN VITRO, IN VIVO EVALUATION OF PRONIOSOMAL GEL OF NEOMYCIN SULPHATE

International Journal of Applied Pharmaceutics ◽

10.22159/ijap.2019v11i2.30614 ◽

2019 ◽

pp. 156-163

Author(s):

AMOL SHETE ◽

PRIYANKA THORAT ◽

RAJENDRA DOIJAD ◽

SACHIN SAJANE

Keyword(s):

Phase Separation ◽

Skin Irritation ◽

Entrapment Efficiency ◽

Separation Method ◽

Gelling Agent ◽

In Vivo Evaluation ◽

Skin Delivery ◽

Span 60

Objective: The objectives of present investigation were to prepare and evaluate proniosomes of neomycin sulphate (NS) by coacervation phase separation method by using sorbitan monostearate (span 60) and lecithin as a surfactant to increase the penetration through the skin and study the effect of concentration of the same. Methods: Proniosomes of neomycin sulphate (NS) were prepared by coacervation phase separation method by using span 60 and lecithin. The effect of concentration of span 60 and lecithin was studied by factorial design. The prepared proniosomes were converted to gel by using carbopol as a gelling agent. The prepared formulations were evaluated for entrapment efficiency, in vitro drug diffusion, in vitro antibacterial activity and in vivo skin irritation test etc. Results: All Formulation showed the percentage entrapment efficiency in the range 38.31±0.05% to 77.96±0.06%, good homogeneity and gel was easily spreadable with minimal of shear. Optimized formulation showed enhanced rate of diffusion in vitro, increase in zone of inhibition against staphylococcus aureus, no skin irritation and showed good stability. Conclusion: The results of present study indicates that proniosomal gel formulated by using combination of span 60, Lecithin, cholesterol can be used to enhance skin delivery of NS because of excellent permeation of drug. Developed proniosomal gel formulation was promising carrier for NS

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II. THE CARBON DIOXIDE ABSORPTION CURVE AND CARBON DIOXIDE TENSION OF THE BLOOD IN CARDIAC DYSPNEA

Journal of Biological Chemistry ◽

10.1016/s0021-9258(18)86191-9 ◽

1921 ◽

Vol 45 (3) ◽

pp. 537-570

Author(s):

John P. Peters ◽

David P. Barr

Keyword(s):

Carbon Dioxide ◽

Carbon Dioxide Tension ◽

Absorption Curve ◽

Carbon Dioxide Absorption

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