The objective of this project si to freeze and unfreeze Calcium Phosphate Foams (CPFs) following different protocols, characterize the resulting materials, the effect of each protocol and select the optimized one. Synthetic bone grafts are generally prepared just before the surgery. To avoid and additional preparation step in the OR and to reduce the preparation time, surgery time and thus infection reate, the frozen delivery of the materials is adequate. During the laboratory work, the student has to: prepare necessary raw materials (alfa TCP powder, additives); prepare CPFs according to the laboratory protocol; freeze and unfreeze foams following various protocols; characterize obtained materials and determine the best protocol. The characterization techniques used are: compression test, image analysis, specific surface area evaluation by gas sorption and temperature/conductivity measurements. Additional sutdies might be required (e.h. setting and cohesion time optimization)

Incoming