HA/TCP scaffolds obtained by sucrose crystal leaching method: Preliminary in vitro Evaluation

Abstract

Scaffolds produced with ceramics are commonly used as bone substitute. In this work calcium phosphate materials were used to produce the scaffolds, because HA and TCP have many similarities with bone tissue. For crystalline phase analysis the scaffolds were calcined at 750 °C and sintered at 1330 °C. Electron microscopy images showed HA and TCP nanoparticles and the compounds were identified by Fourier transform infrared spectrometer. X-ray diffraction showed this material to be mostly crystalline. X-ray fluorescence identified chemical contaminants. X-ray micro computerized tomography produces tomographic images of the objects in 360°. In vitro testing was used to study cells behavior in contact with this material in a controlled environment.

Inhibition of multi‐species oral biofilm by bromide doped bioactive glass

“…). However, BG58S samples containing 5%CaBr 2 before thermal treatment revealed needle like crystals typical from calcium phosphate phases before thermal treatment. Such crystals disappeared and formed angular lighter crystals like β‐Tricalcium phosphate after thermal treatment at 1150°C .…”

Nanostructured Hydroxyapatite from Hen´s Eggshells Using Sucrose as a Template

“…The literature reports that the use of substances such as caffeine, starch, vitamin C, albumin, gelatin 18,[23][24][25] as templates/additives affect the physico-chemical properties of the HAp particles. The use of sucrose has been widely reported for studies related to the formation of porous scaffolds 26 However, there are studies that aim the synthesis of other materials, such as that carried out by Sabbaghan et al 27 who reported the use of sucrose for the synthesis of ZnO nanoparticles, motivating its use as a template in the synthesis of HAp.…”