[308.106] Biocomoatible materials: Exam questions 22.07.2019
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Define osteoconduction
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Fill in the missing words
2.1 When using an implant, the load on the bone is… resulting in bone…
2.2.Fluid spreads freely on a surface of it’s tension is… or… to the… of the surface
2.3.Surface energy results from a combination of… (van der waals) and… (polar and Lewis acid based) interactions at the solid/liquid interface. -
Name the functions of stainless steel:
3.1. chromium (2 functions)
3.2 molybdenum
3.3 nickel
3.4 low carbon content -
What is cold welding describe why it’s possible
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Stress strain diagram was given show the areas for elastic behavior, deformation behavior and breakage also give an estimation of yield strength, ultimate strength, ultimate strain and E modulus
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Explain Photolitography in detail
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2 reasons why ceramics can’t take shear ductility
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2 ways to get optical clarity
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Bone cement mixing ratio
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Bone cement reason for sticky dough until the curing is finished
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What material group is effected by gamma radiation, explain the effect in words
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Rate the materials from 1-4: bone cement, Ti6Al4V, CoCr, UHWPE (1 highest 4 lowest) according to their:
Tensile strength, E modulus, strain -
The diagram of Vogler Method & explain in words how the contact angle influence protein absorption
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Microbial cellulose is created how? What is special about it?