Objective(s) The purpose of the present study was to use the solid dispersion (SD) technique to improve the dissolution rates of indomethacin (IMC). Materials and Methods IMC solid dispersions in PVP K30 and isomalt (GALEN IQ 990) were prepared using the solvent evaporation technique and a hot melt method in weight ratios of 2, 10 and 30% (IMC:PVP). Solid dispersions and physical mixtures we...

Very recently, unconventional superconductivity has been observed in the double twisted trilayer graphene (TLG), where three monolayer (MLG) are stacked on top of each other with two twist angles [J. M. Park, et al., Nature 590, 249 (2021); Z. Hao, Science 371, 1133 X. Zhang, Phys. Rev. Lett.127, 166802 (2021)]. When some MLGs TLG replaced by bilayer (BLG), we get a new family moire heterostruc...

Graphene-based heterostructures display a variety of phenomena that are strongly tunable by electrostatic local gates. Monolayer graphene (MLG) exhibits surface plasmon polaritons, as revealed scanning nano-infrared experiments. In bilayer (BLG), an electronic gap is induced perpendicular displacement field. Gapped BLG predicted to unusual effects such amplification and domain wall plasmons wit...

Aloe vera (Aloe barbadensis Miller) cubes of 12.5 × 12.5 × 12.5 mm thick were osmosed for 4 h in sugar syrup of 30, 40 and 50°Brix concentration and temperatures of 30 and 50°C at constant syrup to fruit ratio of 5:1. Osmosed and unosmosed aloe vera samples were hot air dried at 50, 60, 70 and 80°C with constant air velocity of 1.5 m/s. The water loss, solid gain and convective drying behaviour...

In the past few decades, there is increasing trend to use products from natural resources. Dyes obtained from natural sources are among such products. The present research mainly focuses on optimization of extraction conditions during a natural dye extraction from the flower petals of a tree ‘Flame of Forest’. Taguchi technique was employed for optimization of the parameters namely raw dyestuff...

Background and Objective: During the last two decades it was proven that turmeric is a potent herbal. Curcumin has been subjected to a variety of antimicrobial activity due to extensive traditional uses and less side effects. Antimicrobial activity for curcumin against different bacterial strains has been already reported. Indeed, numerous investigations have been carried out to amplify the ant...

the present study was carried out to determine the nutritive value of white varieties of grape pomace (gp) and raisin vitis leaves (rvl), using nylon bags and gas production techniques. tow fistulated whether with average body weight of 45±2 kg were used. the amount of gas produced was measured at 2, 4, 6, 8, 12, 16, 24, 36, 48 and 72 h times and degradation was measured using nylon bags up to ...

The use of chitin as raw material to obtain glucosamine hydrochloride at laboratory level was investigated. Chitin was extracted from shrimp shells by deproteinization, demineralization and depigmentation. Afterwards, glucosamine hydrochloride was produced in four main stages: (1) acid hydrolysis of chitin with 12 M hydrochloric acid using the reflux technique; (2) filtration of the solution to...

Introduction: European Charter for Regional or Minority Languages, adopted by the Council of Europe, has become an important regulator language policy in signatory and ratifying countries. As a result, towards minorities, turns out to be bright example multi-level governance (MLG) – new pattern political interactions, which is characterized not hierarchical system subordination one center (the ...