Introduction to Nanotechnology
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Questions and Answers

What do nanoparticles refer to in the context of nanotechnology?

  • Particles that are larger than bacteria and viruses
  • Particles that are 1 to 100 nanometers in size (correct)
  • Particles that are smaller than atoms and molecules
  • Particles that can be seen using light microscopes

Which instrument is required to see nanoparticles due to their size?

  • Light microscopes
  • Magnifying glasses
  • Telescopes
  • Electron microscopes and atomic force microscopes (correct)

What rules at the nanoscale, leading to differing properties of materials?

  • Biotoxicity
  • Fluorescence
  • Quantum effects (correct)
  • Chemical reactivity

How do the properties of nanoparticles differ from the usual?

<p>Fluorescence and chemical reactivity differ (A)</p> Signup and view all the answers

What is the size range of nanoparticles according to the text?

<p>1 to 100 nanometers (B)</p> Signup and view all the answers

What is the science of nanoparticles referred to as?

<p>Nanoscience (B)</p> Signup and view all the answers

What are exosomes?

<p>Nanovesicles secreted by vessels primarily for transport (B)</p> Signup and view all the answers

What is one application of nanosensors?

<p>Detecting the presence of pathogens in food (C)</p> Signup and view all the answers

What are carbon nanotubes?

<p>Allotropes of carbon with unusual properties (D)</p> Signup and view all the answers

What is a potential application of bionanocomposites?

<p>Production of biodegradable plastics (A)</p> Signup and view all the answers

What can magnetic nanoparticles be manipulated using?

<p>Magnetic fields (A)</p> Signup and view all the answers

In what fields can nanoparticles be used?

<p>Medicine, energy, environment, agriculture, food security, and communication (D)</p> Signup and view all the answers

What is the unique property that makes nanoparticles good catalysts?

<p>Increased surface area for reactions (A)</p> Signup and view all the answers

What do nanocapsules store?

<p>Biological or synthetic molecules (A)</p> Signup and view all the answers

What is a potential application of carbon nanotubes?

<p>Development of supercapacitors (B)</p> Signup and view all the answers

What allows Fe3O4 or ferric magnetic nanoparticles to bind with other molecules?

<p>Increased surface area per mass (B)</p> Signup and view all the answers

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