44 Questions
What are nanomaterials?
Material with any external dimension in the nanoscale or having internal structure or surface structure in the nanoscale
What do you mean by Nano Particles?
Particles of size between 1 nm to 100 nm
Why are nanoparticles of interest?
They exhibit new properties compared with larger particles of the same materials
What is the size of a nanometer?
One billionth (10^-9) of a meter
What is the approximate width of an average human hair?
~10 µm
What size range defines nanomaterials?
~1 – 100 nm
What is the primary application of titanium dioxide and zinc oxide at the nanoscale?
Cosmetics, textiles, and paints
What are the potential applications of nanoparticles in the longer term?
Drug delivery to specific sites in the body
What is the primary form of carbon-based nanomaterials that consists of a hollow cage of atom carbon?
Fullerenes
Which carbon-based nanomaterial exhibits the best conductor of electricity known?
Graphene
What is the primary shape of carbon nanotubes (CNT)?
Cylindrical
Which carbon-based nanomaterial has extraordinary electrical conductivity and heat conductivity?
Graphene
What is the primary application of nano shells?
Cancer therapy
What makes nano shells suitable for cancer therapy?
Low toxicity
What is the approximate diameter range of carbon nanofibers (CNFs)?
70–200nm
Which carbon-based nanomaterial has a molecular bond length of 0.142 nanometres?
Graphene
What are nanomaterials?
Materials developed to exhibit novel characteristics compared to the same material without nanoscale features
What do you mean by Nano Particles?
Particles of size between 1 nm to 100 nm
What is the approximate width of an average human hair?
10 µm
What makes nanoparticles of interest?
They exhibit new properties compared with larger particles of the same materials
What is the size of a nanometer?
One billionth (10^-9) of a meter
What is the primary shape of carbon nanotubes (CNT)?
Tubular
Which carbon-based nanomaterial is the thinnest compound known to man?
Graphene
What is the primary shape of carbon nanotube (CNT)?
Miniature cylindrical structure
What is the primary application of titanium dioxide and zinc oxide at the nanoscale?
Transparency
Which carbon-based nanomaterial has extraordinary electrical and heat conductivity?
Graphene
What is the approximate diameter range of carbon nanofibers (CNFs)?
50–200nm
Why are nanoparticles of interest in drug delivery?
Ability to deliver drugs to a specific site
Which carbon-based nanomaterial has molecules of 60 atoms arranged in a polyhedron resembling a geodesic sphere?
Fullerenes
What is the primary shape of carbon-based nanomaterials that consists of a hollow cage of atom carbon?
Fullerenes
What is the primary defining characteristic of nanomaterials?
Increased strength and chemical reactivity
What are nanoparticles primarily known for?
New properties compared to larger particles of the same material
What is the approximate width of an average human hair in comparison to a nanometer?
10 micrometers
What defines the size range for nanomaterials?
1 - 50 nm
Why are nanoparticles considered to be of interest?
They exhibit new properties compared with larger particles of the same materials
What is the primary application of titanium dioxide and zinc oxide at the nanoscale?
UV protection and antimicrobial properties
What is the primary form of carbon-based nanomaterials that consists of a single layer (monolayer) of carbon atoms, tightly bound in a hexagonal honeycomb lattice?
Graphene
Which carbon-based nanomaterial is defined as cylindrical nanostructures with graphene layers constructed in the shape of cups, cones, or plates?
Carbon nanofibers (CNFs)
Which carbon-based nanomaterial has molecules of 60 atoms arranged in a polyhedron resembling a geodesic sphere?
Fullerenes
Which carbon-based nanomaterial is the strongest compound discovered, with a tensile strength of 130 GPa and a Young's modulus of 1 TPa - 150,000,000 psi?
Graphene
Which carbon-based nanomaterial exhibits extraordinary electrical conductivity, heat conductivity, mechanical properties, and high stability?
Carbon nanotubes (CNT)
What is the primary application of graphene in the field of drug and gene delivery?
Drug and gene delivery
"What is the approximate diameter range of carbon nanofibers (CNFs)?"
~70-200nm
Which statements are true for Carbon Based Nanomaterials?
They have extraordinary electrical conductivity and heat conductivity.
Study Notes
Nanomaterials and Nanoparticles
- Nanomaterials are materials with a size range of 1-100 nanometers.
- A nanometer is a unit of length in the metric system, equal to one billionth of a meter.
- The approximate width of an average human hair is 80,000 nanometers.
- Nanoparticles are of interest due to their unique properties, such as increased surface area, strength, and reactivity.
Titanium Dioxide and Zinc Oxide
- The primary application of titanium dioxide and zinc oxide at the nanoscale is in sunscreen and cosmetics.
Carbon-Based Nanomaterials
- The primary form of carbon-based nanomaterials that consists of a hollow cage of atom carbon is fullerenes.
- Fullerenes are molecules composed of 60 atoms arranged in a polyhedron resembling a geodesic sphere.
- Carbon nanotubes (CNTs) are cylindrical nanostructures with graphene layers constructed in the shape of cups, cones, or plates.
- CNTs are known for their extraordinary electrical conductivity, heat conductivity, mechanical properties, and high stability.
- The primary shape of carbon nanotubes (CNTs) is cylindrical.
- Graphene is a single layer (monolayer) of carbon atoms, tightly bound in a hexagonal honeycomb lattice.
- Graphene is the strongest compound discovered, with a tensile strength of 130 GPa and a Young's modulus of 1 TPa - 150,000,000 psi.
- Graphene is the thinnest compound known to man.
- The primary application of graphene in the field of drug and gene delivery is due to its extraordinary electrical conductivity, heat conductivity, mechanical properties, and high stability.
Carbon Nanofibers (CNFs)
- The approximate diameter range of carbon nanofibers (CNFs) is 1-100 nanometers.
Nano Shells
- The primary application of nano shells is in cancer therapy due to their ability to target cancer cells.
- Nano shells are suitable for cancer therapy because they can absorb near-infrared radiation, causing heat damage to cancer cells.
General Properties of Nanomaterials
- The primary defining characteristic of nanomaterials is their size range of 1-100 nanometers.
- Nanoparticles are primarily known for their unique properties, such as increased surface area, strength, and reactivity.
- Nanoparticles are considered to be of interest due to their potential applications in various fields, including medicine, energy, and electronics.
Test your knowledge about nanomaterials and nanotechnology with this quiz. Learn about the characteristics, examples, and applications of nanomaterials.
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