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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.
PARATHYRIOD GLANDS - They develop from the endoderm of the embryo. The parathyroid glands consist of four separate glands located on the posterior surface of the lobes of
What benefits can commensalism offer to a species? Commensalism may include obtainment of food (for instance, the innocuous bacteria of the human gut), shelter or support (epip
HOW CAN YOU JUSTIFY NEWTON THIRD LAW OF MOTION IN A TYPICAL PLANT CELL?
Role of Hormones in Aging Aging as well reflects the inefficiency of the endocrine system. A change in the hormonal secretions may contribute to the development of physical ai
Natural Gums These are derived from various plant as well as microbial sources and are divided into the following four basic categories: 1. Seaweed gums: Agar, Alginate,
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Explain about bimodal diurnal pattern Animals that show a bimodal diurnal pattern have their activity controlled by two biological clocks - one that controls the time of onset
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