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Explain about Bioactive materials
Bioactive materials: Certain glasses, ceramics, and glass-ceramics that contain oxides of silicon, sodium, calcium and phosphorus (SiO2 , Na2O, CaO, and P2O5 ) form a chemical bond with bone, resulting in a strong mechanical implant bone bond. These materials do bond to bone through a time-dependent, kinetic modification of the surface triggered by their implantation within living bone. An ion-exchange reaction between the bioactive implant and surrounding body fluids results in the formation of a biologically active calcium phosphate layer on the implant. This layer is chemically and crystallographically equivalent to the mineral phase in bone which is responsible for the strong interfacial bonding.
features of phylum platyhelminths
Oxidation Some enzymes which have the sulfhydryl (-SH) group in the catalytic site are very sensitive to oxidation. Due to oxidation of the -SH group by aerial oxygen
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A 19 year old model for Glamour magazine tripped over an extension cord causing injury to her epidermis. She is afraid the injury will leave a scar. Based on your knowledge of rege
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what is saprophytic
Define requirement of energy for Physical activity? This is the most variable and, after BMR, the second largest component of daily energy expenditure. Humans perform obligator
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