Podcast
Questions and Answers
Which property of metals makes them suitable as biomaterials?
Which property of metals makes them suitable as biomaterials?
- Excellent electrical conductivity
- Excellent thermal conductivity
- Excellent mechanical properties
- All of the above (correct)
What is the role of mobile free electrons in metals?
What is the role of mobile free electrons in metals?
- They act as a binding force between metal ions
- They transfer thermal energy
- They transfer electric charge
- All of the above (correct)
What is the result of the closely packed atomic arrangement in metals?
What is the result of the closely packed atomic arrangement in metals?
- Low specific gravity
- High melting points
- Low melting points
- High specific gravity (correct)
What allows the position of metal ions to be altered without destroying the crystal structure?
What allows the position of metal ions to be altered without destroying the crystal structure?
Which of the following is NOT a use of metals as biomaterials?
Which of the following is NOT a use of metals as biomaterials?
What are some reasons why metals are used as biomaterials?
What are some reasons why metals are used as biomaterials?
What role do mobile free electrons play in metals as biomaterials?
What role do mobile free electrons play in metals as biomaterials?
How does the closely packed atomic arrangement in metals affect their properties?
How does the closely packed atomic arrangement in metals affect their properties?
What allows the position of metal ions to be altered without destroying the crystal structure?
What 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?
What are some examples of medical applications of metals as biomaterials?
Which law defines the flux (movement) of a drug across a non-porous polymer membrane?
Which law defines the flux (movement) of a drug across a non-porous polymer membrane?
If a polymer membrane is porous, what law would define the flux of a drug across the membrane?
If a polymer membrane is porous, what law would define the flux of a drug across the membrane?
What is the relationship between the porosity of a polymer membrane and the law that defines the flux of a drug across the membrane?
What is the relationship between the porosity of a polymer membrane and the law that defines the flux of a drug across the membrane?
Which law defines the flux (movement) of a drug across a non-porous polymer membrane?
Which law defines the flux (movement) of a drug across a non-porous polymer membrane?
If a polymer membrane is porous, what law would define the flux of a drug across the membrane?
If a polymer membrane is porous, what law would define the flux of a drug across the membrane?
What determines the movement of a drug across a non-porous polymer membrane?
What determines the movement of a drug across a non-porous polymer membrane?
Flashcards
Metal biomaterials: suitability
Metal biomaterials: suitability
Metals are suitable for biomaterials due to their conductivity, mechanical strength, and corrosion resistance.
Free electrons in metals
Free electrons in metals
Mobile electrons in metals conduct electricity and heat.
Metal atomic arrangement
Metal atomic arrangement
Closely packed atoms give metals high density and melting points.
Metal ion position change
Metal ion position change
Metal ions can shift without breaking the crystal structure due to the nondirectional metallic bond.
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Metal biomaterial uses: hearing aids?
Metal biomaterial uses: hearing aids?
Hearing aids are NOT a common use for metal biomaterials.
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Metal biomaterials: reasons
Metal biomaterials: reasons
Excellent conductivity, mechanical properties, and corrosion resistance make metals useful in biomaterials.
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Mobile electrons in metal biomaterials
Mobile electrons in metal biomaterials
Mobile electrons hold metal ions together and allow for quick energy transfer (electrical and thermal).
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Metal atomic arrangement effect
Metal atomic arrangement effect
Close packing leads to high density (specific gravity) and high melting point in metals.
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Metallic bond & ion movement
Metallic bond & ion movement
The non-directional nature of the metallic bond allows metal ions to shift without disrupting the structure.
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Medical metal applications
Medical metal applications
Metals are used in joint replacements, fracture plates, spinal devices, and dental implants.
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Drug movement across non-porous
Drug movement across non-porous
Fick's second law describes drug movement across non-porous polymer membranes.
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Drug movement across porous membrane
Drug movement across porous membrane
Fick's first law describes drug movement across porous membranes.
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Porous membrane and diffusion laws
Porous membrane and diffusion laws
Different laws (Fick's first and second) describe drug movement based on the membrane's porosity.
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Drug movement driver
Drug movement driver
Concentration gradient drives drug movement across non-porous membranes.
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