OBJECTIVE Calcification plays a major role in the failure of bioprosthetic and other tissue heart valve substitutes. The objective of this study was to evaluate the anticalcification effect of decellularization and detoxification in glutaraldehyde (GA)/genipin- and solvent-fixed bovine pericardium using a rabbit intramuscular model which is effective for assessing calcification in bioprosthetic...

To increase the amount of ferulic acid adsorbed on a acid-silica composite, which is expected to be applied as UV-protection material, method for preparing composite by using an anti-solvent precipitation was investigated. Mesoporous silica dispersed in 50% ethanol solution acid, and water added poor solvent; resultant adsorption five times higher with added. The diffuse reflectance spectrum pr...

Kaolin-SO3H as a new solid acid is prepared via reaction of kaolin and chlorosulfonic acid. This natural based catalyst is very inexpensive and easy available. Imidazoles are an important class of heterocycles being the core fragment of different natural products and biological systems such as anti-allergic, anti-inflammatory, analgesic, antifungal, antimycotic, antibiotic, antiulcerative, anti...

We studied the effect of calyx cape gooseberry nanoparticles manufactured by a novel technique. There are several methods, such as jet mill, spray freezing, supercritical anti-solvent technique (SAS), and high-pressure homogenization, available for production drug micro/nanoparticles to improve solubility. Anti-solvent precipitation is also used prepare micro- nanosized particles explain their ...

The solubilities and maximum supersaturation concentrations of an amorphous the crystalline tetrahydrate heptahydrate solids disodium guanosine 5'-monophosphate (GMP) in water-methanol mixtures were measured situ by Raman spectroscopy focused beam reflectance measurement. distinct peaks form, hydrates, solution, solvent used for measurements solubility supersaturation. Above 45 °C at methanol f...

Abstract Hybrid halide perovskite research has recently been focused on thermoelectric energy harvesting due to the cost-effectiveness of fabrication approach and ultra-low thermal conductivity. To achieve high performance, tuning electrical conductivity is a key parameter that influenced by grain boundary scattering charge carrier density. The process allows these parameters. We report use ant...

Kaolin-SO3H as a new solid acid is prepared via reaction of kaolin and chlorosulfonic acid. This natural based catalyst is very inexpensive and easy available. Imidazoles are an important class of heterocycles being the core fragment of different natural products and biological systems such as anti-allergic, anti-inflammatory, analgesic, antifungal, antimycotic, antibiotic, antiulcerative, anti...

Ionic polymer-metal composites (IPMCs) consist of a perfluorinated ionomer membrane (usually Nafion or Flemion) plated on both faces with a noble metal such as gold or platinum and neutralized with a certain amount of counterions that balance the electrical charge of anions covalently fixed to the membrane backbone. IPMCs are electroactive materials that can be used as actuators and sensors. Th...

the effect of different solvent systems on the extraction of antioxidant and anti radical agents of grape seed was studied. for this purpose 6 different solvent systems with similar polarity and different selectivity were used to prepare grape seed extract. extraction efficiency, reducing activity, radical scavenging property and the effect of each extract on the increase of thermal resistance ...