16 Questions
Which property of metals makes them suitable as biomaterials?
All of the above
What is the role of mobile free electrons in metals?
All of the above
What is the result of the closely packed atomic arrangement in metals?
High specific gravity
What allows the position of metal ions to be altered without destroying the crystal structure?
Metallic bond
Which of the following is NOT a use of metals as biomaterials?
Hearing aids
What are some reasons why metals are used as biomaterials?
Metals are used as biomaterials due to their excellent electrical and thermal conductivity, mechanical properties, and corrosion resistance.
What role do mobile free electrons play in metals as biomaterials?
Mobile free electrons in metals act as a binding force to hold the positive metal ions together and enable the quick transfer of electric charge and thermal energy.
How does the closely packed atomic arrangement in metals affect their properties?
The closely packed atomic arrangement in metals results in high specific gravity and high melting points.
What allows the position of metal ions to be altered without destroying the crystal structure?
The metallic bond, which is essentially nondirectional, allows the position of metal ions to be altered without destroying the crystal structure.
What are some examples of medical applications of metals as biomaterials?
Some examples of medical applications of metals as biomaterials include total hip and knee joints, bone plates and screws for fracture healing, spinal fixation devices, and dental implants.
Which law defines the flux (movement) of a drug across a non-porous polymer membrane?
Fick’s first law of diffusion
If a polymer membrane is porous, what law would define the flux of a drug across the membrane?
Fick’s second law of diffusion
What is the relationship between the porosity of a polymer membrane and the law that defines the flux of a drug across the membrane?
Porous membrane - Fick’s first law of diffusion
Which law defines the flux (movement) of a drug across a non-porous polymer membrane?
Fick's second law of diffusion
If a polymer membrane is porous, what law would define the flux of a drug across the membrane?
Fick's second law of diffusion
What determines the movement of a drug across a non-porous polymer membrane?
The concentration gradient of the drug
Test your knowledge of metals as biomaterials and their unique properties such as electrical and thermal conductivity. Explore the role of mobile free electrons in transferring charge and thermal energy, and discover how these properties contribute to the strong binding force between metal ions.
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