Nanomaterials and Nanotechnology Quiz
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Questions and Answers

What are nanomaterials?

  • Material with any external dimension in the nanoscale or having internal structure or surface structure in the nanoscale (correct)
  • Material with dimensions between 101-200 nm
  • Material with dimensions smaller than 1 nm
  • Material with dimensions larger than 100 nm

    • What do you mean by Nano Particles?

  • Particles larger than 1000 nm
  • Particles of size between 1 nm to 100 nm (correct)
  • Particles larger than 100 nm
  • Particles smaller than 1 nm

    • Why are nanoparticles of interest?

  • They exhibit new properties compared with larger particles of the same materials (correct)
  • They are easier to manufacture than larger particles
  • They have the same properties as larger particles
  • They are less reactive than larger particles

    • What is the size of a nanometer?

    <p>One billionth (10^-9) of a meter</p> Signup and view all the answers

    What is the approximate width of an average human hair?

    <p>~10 µm</p> Signup and view all the answers

    What size range defines nanomaterials?

    <p>~1 – 100 nm</p> Signup and view all the answers

    What is the primary application of titanium dioxide and zinc oxide at the nanoscale?

    <p>Cosmetics, textiles, and paints</p> Signup and view all the answers

    What are the potential applications of nanoparticles in the longer term?

    <p>Drug delivery to specific sites in the body</p> Signup and view all the answers

    What is the primary form of carbon-based nanomaterials that consists of a hollow cage of atom carbon?

    <p>Fullerenes</p> Signup and view all the answers

    Which carbon-based nanomaterial exhibits the best conductor of electricity known?

    <p>Graphene</p> Signup and view all the answers

    What is the primary shape of carbon nanotubes (CNT)?

    <p>Cylindrical</p> Signup and view all the answers

    Which carbon-based nanomaterial has extraordinary electrical conductivity and heat conductivity?

    <p>Graphene</p> Signup and view all the answers

    What is the primary application of nano shells?

    <p>Cancer therapy</p> Signup and view all the answers

    What makes nano shells suitable for cancer therapy?

    <p>Low toxicity</p> Signup and view all the answers

    What is the approximate diameter range of carbon nanofibers (CNFs)?

    <p>70–200nm</p> Signup and view all the answers

    Which carbon-based nanomaterial has a molecular bond length of 0.142 nanometres?

    <p>Graphene</p> Signup and view all the answers

    What are nanomaterials?

    <p>Materials developed to exhibit novel characteristics compared to the same material without nanoscale features</p> Signup and view all the answers

    What do you mean by Nano Particles?

    <p>Particles of size between 1 nm to 100 nm</p> Signup and view all the answers

    What is the approximate width of an average human hair?

    <p>10 µm</p> Signup and view all the answers

    What makes nanoparticles of interest?

    <p>They exhibit new properties compared with larger particles of the same materials</p> Signup and view all the answers

    What is the size of a nanometer?

    <p>One billionth (10^-9) of a meter</p> Signup and view all the answers

    What is the primary shape of carbon nanotubes (CNT)?

    <p>Tubular</p> Signup and view all the answers

    Which carbon-based nanomaterial is the thinnest compound known to man?

    <p>Graphene</p> Signup and view all the answers

    What is the primary shape of carbon nanotube (CNT)?

    <p>Miniature cylindrical structure</p> Signup and view all the answers

    What is the primary application of titanium dioxide and zinc oxide at the nanoscale?

    <p>Transparency</p> Signup and view all the answers

    Which carbon-based nanomaterial has extraordinary electrical and heat conductivity?

    <p>Graphene</p> Signup and view all the answers

    What is the approximate diameter range of carbon nanofibers (CNFs)?

    <p>50–200nm</p> Signup and view all the answers

    Why are nanoparticles of interest in drug delivery?

    <p>Ability to deliver drugs to a specific site</p> Signup and view all the answers

    Which carbon-based nanomaterial has molecules of 60 atoms arranged in a polyhedron resembling a geodesic sphere?

    <p>Fullerenes</p> Signup and view all the answers

    What is the primary shape of carbon-based nanomaterials that consists of a hollow cage of atom carbon?

    <p>Fullerenes</p> Signup and view all the answers

    What is the primary defining characteristic of nanomaterials?

    <p>Increased strength and chemical reactivity</p> Signup and view all the answers

    What are nanoparticles primarily known for?

    <p>New properties compared to larger particles of the same material</p> Signup and view all the answers

    What is the approximate width of an average human hair in comparison to a nanometer?

    <p>10 micrometers</p> Signup and view all the answers

    What defines the size range for nanomaterials?

    <p>1 - 50 nm</p> Signup and view all the answers

    Why are nanoparticles considered to be of interest?

    <p>They exhibit new properties compared with larger particles of the same materials</p> Signup and view all the answers

    What is the primary application of titanium dioxide and zinc oxide at the nanoscale?

    <p>UV protection and antimicrobial properties</p> Signup and view all the answers

    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?

    <p>Graphene</p> Signup and view all the answers

    Which carbon-based nanomaterial is defined as cylindrical nanostructures with graphene layers constructed in the shape of cups, cones, or plates?

    <p>Carbon nanofibers (CNFs)</p> Signup and view all the answers

    Which carbon-based nanomaterial has molecules of 60 atoms arranged in a polyhedron resembling a geodesic sphere?

    <p>Fullerenes</p> Signup and view all the answers

    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?

    <p>Graphene</p> Signup and view all the answers

    Which carbon-based nanomaterial exhibits extraordinary electrical conductivity, heat conductivity, mechanical properties, and high stability?

    <p>Carbon nanotubes (CNT)</p> Signup and view all the answers

    What is the primary application of graphene in the field of drug and gene delivery?

    <p>Drug and gene delivery</p> Signup and view all the answers

    "What is the approximate diameter range of carbon nanofibers (CNFs)?"

    <p>~70-200nm</p> Signup and view all the answers

    Which statements are true for Carbon Based Nanomaterials?

    <p>They have extraordinary electrical conductivity and heat conductivity.</p> Signup and view all the answers

    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.

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    Test your knowledge about nanomaterials and nanotechnology with this quiz. Learn about the characteristics, examples, and applications of nanomaterials.

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