In this study, the dissolution rate of SiNx coatings was investigated as a function of coating composition, in comparison to a cobalt chromium molybdenum alloy (CoCrMo) reference. SiNx coatings with N/Si ratios of 0.3, 0.8 and 1.1 were investigated. Electrochemical measurements were complemented with solution (inductively coupled plasma techniques) and surface analysis (vertical scanning interf...

Introduction Soft gelatin capsule (SGC) formulations are becoming more popular in recent years (1,2). These formulations can mask odors and unpleasant tastes,and are easy to swallow. They are suitable for encapsulation of lipid solutions,suspensions,or paste-like formulations,making them a useful option when formulating poorly water-soluble drugs. Due to the unique properties of SGC formulation...

Current research on virtual organisations focuses mainly on their formation and operation phases, devoting only little attention to the dissolution phase. These passages typically suggest that dissolution should occur when the organisation has fulfilled all its objectives or when it is no longer needed. This last definition is quite vague and hard to define, as the need for an organisation is n...

Poorly water soluble compounds have solubility and dissolution related bioavailability problems. The dissolution rate is directly proportional to solubility of drugs. Drugs with low aqueous solubility have low dissolution rates and hence suffer from oral bioavailability problems. The poor solubility and poor dissolution rate of poorly water soluble drugs in the aqueous gastro intestinal fluids ...

Previous research finds that marriage is associated with better health and lower mortality, and one of the mechanisms underlying this association is health-related selection out of marriage. Using longitudinal survey data from 2,348 couples from the Fragile Families and Child Wellbeing Study, we examine whether certain health behaviors-smoking and binge drinking-are associated with risk of unio...

In this paper work, four naked nanocrystals (size range 80-700 nm) were prepared without any surfactant or polymer using the solvent/nonsolvent method. The effects of particle size on their solubility, dissolution, and oral bioavailability were investigated. Solubility and dissolution testing were performed in three types of dissolution medium, and the studies demonstrated that the equilibrium ...

Incorporation of silver nanoparticles (AgNPs) into an increasing number of consumer products has led to concern over the potential ecological impacts of their unintended release to the environment. Dissolution is an important environmental transformation that affects the form and concentration of AgNPs in natural waters; however, studies on AgNP dissolution kinetics are complicated by nanoparti...

The poorly water soluble antidiabetic drug gliclazide was selected to study the effect of excipients on dissolution rate enhancement. Ordered mixtures of micronized gliclazide with lactose, mannitol, sorbitol, maltitol and sodium chloride were prepared by manual shaking of glass vials containing the drug and excipient(s). Different water soluble excipients, addition of surfactant and superdisin...

The development of a meaningful dissolution procedure for drug products with limited water solubility has been a challenge to both the pharmaceutical industry and the agencies that regulate them. These challenges include developing and validating the test methods, ensuring that methods are appropriately discriminatory, and addressing the potential for an in vivo–in vitro correlation (IVIVC). Di...

Ibuprofen is a Biopharmaceutical classification system class II drug that exhibits poor dissolution rate in the gastrointestinal tract. The aim of the present study is to enhance the dissolution of ibuprofen in presence of glucosamine. To this end, different ratios of ibuprofen:glucosamine were dissolved in various organic solvents to obtain the solid dispersions of ibuprofen-glucosamine mixtur...