This paper describes some physical, structural, and biological properties of gypsum bioceramics doped with various amounts of strontium ions (0.19-2.23 wt%) and compares these properties with those of a pure gypsum as control. Strontium-doped gypsum (gypsum:Sr) was obtained by mixing calcium sulfate hemihydrate powder and solutions of strontium nitrate followed by washing the specimens with dis...

Patients 175 patients > 50 years of age (mean age 73 y, 59% women) with cardioinhibitory CSH who reported to the emergency department because of a non-accidental fall. Exclusion criteria included cognitive impairment (MiniMental State Examination score < 24), a medical cause for the fall within 10 days of presentation, an accidental fall, blindness, contraindication to carotid sinus massage (CS...

The present study investigates £-radiation effect on structure and selected properties of a tetracalcium phosphate (TTCP)/dicalcium phosphate anhydrous (DCPA)/calcium sulfate hemihydrate (CSH) cement immersed in Hanks’ solution. The results indicate that, at a dosage of 25 kGy, the working and setting times of the cement paste derived from £-ray-sterilized TTCP/DCPA/CSH powder did not change si...

A novel biomimetic bone scaffold was successfully prepared in this study, which was composed of calcium sulfate hemihydrate (CSH), collagen and nano-hydroxyapatite (nHAC). CSH/nHAC was prepared and observed with scanning electron microscope and rhBMP-2 was introduced into CSH/nHAC. The released protein content from the scaffold was detected using high performance liquid chromatography at predet...

INTRODUCTION: Calcium sulfate pellets have been used successfully as a synthetic bone graft for treatment of contained bone defects at sites without substantial compressive loads [1]. There are many bone defects, notably subcondral and vertebral, where calcium sulfate with increased compressive strength would be beneficial. A new, modified calcium sulfate with a different crystalline structure ...

Structural and thermal data were obtained for a novel hemihydrate of 6-mercaptopurine. The hemihydrate shows increased solubility and bioavailability when compared to the monohydrate form, better stability against conversion in aqueous media than the anhydrate form, and a dehydration temperature of 240 °C, the highest of any known hydrate crystal.