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Questions and Answers
What is the size range, in nanometers, that defines nanomaterials?
What is the size range, in nanometers, that defines nanomaterials?
- 1 to 10 nm
- 1 to 100 nm (correct)
- 100 to 1000 nm
- 10 to 1000 nm
According to ISO/TS 80004, how is nanomaterial defined?
According to ISO/TS 80004, how is nanomaterial defined?
- Material with internal structure only
- Material with external dimension greater than 100 nm
- Material with any external dimension in the nanoscale or having internal structure or surface structure in the nanoscale (correct)
- Material with external dimension less than 1 nm
What properties do materials with structure at the nanoscale often have?
What properties do materials with structure at the nanoscale often have?
- Unique optical, electronic, thermo-physical or mechanical properties (correct)
- No distinct properties
- Only optical properties
- Similar properties to macro-scale materials
What are nano-objects, as defined in ISO/TS 80004?
What are nano-objects, as defined in ISO/TS 80004?
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What is the length range of nanoscale, according to ISO/TS 80004?
What is the length range of nanoscale, according to ISO/TS 80004?
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Study Notes
Defining Nanomaterials
- Nanomaterials are defined as materials with structure at the nanoscale, typically in the size range of 1-100 nanometers (nm).
Nanomaterial Definition
- According to ISO/TS 80004, a nanomaterial is a material with one or more external dimensions, or an internal structure, on the nanoscale.
Properties of Nanomaterials
- Materials with structure at the nanoscale often have unique physical, chemical, and biological properties that differ from their bulk counterparts.
Nano-Objects
- According to ISO/TS 80004, nano-objects are materials with one, two, or three external dimensions in the nanoscale (typically in the range of 1-100 nm).
Nanoscale
- The length range of the nanoscale, according to ISO/TS 80004, is approximately 1-100 nm.
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