Lecture 2 (BME 296)
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Last updated 11:02 PM on 3/2/25
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21 Terms
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Biomaterials
Materials designed to interface with biological systems for medical purposes.
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Degradation
The process by which a material breaks down or deteriorates, often influenced by environmental conditions.
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Surface Properties
Characteristics of the outermost layers of a material that affect how it interacts with its environment, including protein interactions.
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Hydrophobicity
The property of being repellent to water; materials with high levels of this do not easily absorb water.
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Hydrophilicity
The property of a material to attract water; materials with high levels of this tend to absorb water.
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Crystalline Structure
An ordered arrangement of atoms in a material that affects its properties.
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Coordination Number
The number of atoms or ions immediately surrounding a central atom in a complex or crystal.
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Atomic Packing Factor (APF)
The fraction of the volume of a unit cell that is filled with atoms.
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Ionic Bonding
A strong electrostatic bond formed between oppositely charged ions.
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Covalent Bonding
A bond formed when two atoms share electrons.
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Metallic Bonding
A bond between metal atoms involving a 'sea' of delocalized electrons.
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Van der Waals Forces
Weak attractive forces between molecules, important for interactions in biomaterials.
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Surface Roughness
A measure of the texture of a surface that can influence biological responses.
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Macrophages
A type of immune cell that engulfs and digests cellular debris and pathogens.
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Mechanical Properties
Properties that describe a material's behavior under applied forces, such as strength and ductility.
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Thermal Conductivity
The ability of a material to conduct heat.
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Bioincompatibility
The property of a material that causes an adverse biological response.
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Chemical Properties
Characteristics of a material that result in changes to its composition.
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Spectroscopy
An analytical technique used to measure the interaction of light with matter to determine material composition.
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Amorphous Structure
A non-ordered arrangement of atoms, in contrast to crystalline structures.
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atomic bonding strongest to weakest
ionic (ceramics)
metallic (metals)
covalent (polymers)
hydrogen/van der waals (polymers)
Note 
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