Search results
Results from the WOW.Com Content Network
The first bioactive glass, developed by Larry Hench in 1969, was produced by melting a mixture of related oxide precursors at relatively high temperatures. This original bioactive glass, named Bioglass, was melt-derived with a composition of 46.1 mol% SiO 2, 24.4 mol% Na 2 O, 26.9 mol% CaO, and 2.6 mol% P 2 O 5.
Studies done with S. epidermidis and E. coli cultured with bioactive glass have shown that the 45S5 bioactive glass have a very high antibacterial resistance. It was also observed in the experiment that there were needle-like bioglass debris which could have ruptured the cell walls of the bacteria and rendered them inactive. [13]
Bioactive metallic glass is a subset of bioactive glass, wherein the bulk material is composed of a metal-glass substrate and is coated with bioactive glass in order to make the material bioactive. The reasoning behind the introduction of the metallic base is to create a less brittle, stronger material that will be permanently implanted within ...
The term "click chemistry" was coined in 1998 by Sharpless' wife, Jan Dueser, [3] who found the simplicity of this approach to chemical synthesis akin to clicking together Lego blocks. In fact, the simplicity of click chemistry represented a paradigm shift in synthetic chemistry, and has had significant impact in many industries, especially ...
Bioactive glass S53P4 (BAG-S53P4) is a biomaterial consisting of sodium, silicate, calcium and phosphate. [1] S53P4 is osteoconductive and also osteoproductive in the promotion, migration, replication and differentiation of osteogenic cells and their matrix production. [ 2 ]
The ABC sitcom originally starred Michael J. Fox, who left the show after four seasons following his Parkinson's diagnosis and was replaced by Charlie Sheen
The rate of a reaction is the concentration of substrate disappearing (or product produced) per unit time (mol L −1 s −1). The % purity is 100% × (specific activity of enzyme sample / specific activity of pure enzyme). The impure sample has lower specific activity because some of the mass is not actually enzyme.
Finding the best gifts for friends and family members, decorating, planning and hosting get-togethers, and keeping up with traditions — all those tasks can make the holiday season overwhelming.