108 research outputs found
Thermal treatment effect on structural features of mechano-synthesized fluorapatite-titania nanocomposite: A comparative study
New Frontiers in Mechanosynthesis: Hydroxyapatite – and Fluorapatite – Based Nanocomposite Powders
An Uncommon Complication of Streptokinase: Large Spontaneous Iliopsoas Hematoma
Streptokinase is a fibrinolytic agent that enhances plasmin activation and is used in selected patients with acute ST elevation myocardial infarction (STEMI). Similar to the other thrombolytics, a common side effect is bleeding, especially from venous puncture sites. Here, we present a case of acute anterior wall STEMI complicated by large spontaneous iliopsoas hematoma after streptokinase administration. With conservative management, the course of the disease was uneventful, and the patient was discharged with no symptom and no clinically important sequel
Solid-state MAS NMR, TEM, and TGA studies of structural hydroxyl groups and water in nanocrystalline apatites prepared by dry milling
Crystallization behavior of nanostructured amorphous tricalcium phosphate under thermal treatment
Mechanochemical preparation and structural characterization of Ta-doped chlorapatite nanopowders
Nanocrystalline tantalum-doped chlorapatite (Ta-doped ClA) was successfully synthesized using a facile mechanochemical method. In the absence of the dopant, milling for 3 h led to the formation of a poorly crystalline hydroxyapatite, while in its presence of the Ta dopant, Ta-doped ClA nanopowders were produced as a result of an oncoming reaction. The results indicated that lattice micro-strain, crystallite size, crystallinity level, phase percentage and hexagonal lattice constants of the substituted apatite nanopowders were dramatically affected by the doping concentration. The a-axis and unit cell volume increased with the increase in the doping concentration, owing to the ionic radius difference of Cl− and OH− ions. From the TEM observations, the doped powders consisted of nanoneedles with a mean size of 60±20 nm in length and 14±4 nm in width
Synthesis and Structural Evaluation of Nanocrystalline Hydroxyapatite Obtained by Mechanochemical Treatment in Polyamide6 Vials
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