Nanoparticles

• What are nanoparticles?

  Tiny particles with useful properties
• Why are nanoparticles being developed continuously?

  They have useful properties and new uses
• What size range defines nanoparticles?

  1-100 nanometers
• How many atoms roughly make up nanoparticles?

  About a few hundred atoms
• How do the sizes of nanoparticles compare to atoms?

  They are bigger than atoms
• What are fullerene nanoparticles?

  They include carbon nanotubes
• What makes carbon nanotubes strong?

  Covalent bonds between carbon atoms
• How do nanoparticles differ from bulk materials?

  They have different properties than bulk materials
• What is a key feature of nanoparticles regarding surface area?

  They have a high surface area to volume ratio
• Why is a high surface area to volume ratio important for nanoparticles?

  It allows for more interactions with substances
• How does the size of nanoparticles affect their properties?

  Smaller size leads to different properties
• What is one application of nanoparticles in cosmetics?

  They improve skin protection
• What is a benefit of using nanoparticles in drug delivery?

  They can deliver drugs more effectively
• How do nanoparticles enhance sunscreens?

  They provide better UV protection
• What is a potential downside of nanoparticles in cosmetics?

  They can leave white marks on skin
• What is the significance of nanomedicine?

  It uses nanoparticles for medical applications
• How do nanoparticles interact with the body compared to larger particles?

  They are absorbed more easily by the body
• What is a common use of nanoparticles in electronics?

  They improve conductivity in devices
• What is a characteristic of nanomedicine?

  It focuses on using nanoparticles in treatments
• How do nanoparticles contribute to environmental applications?

  They help in pollution reduction and cleanup
• What is the relationship between nanoparticle size and their reactivity?

  Smaller nanoparticles are generally more reactive
• What is a potential risk of using nanoparticles?

  They may have unknown health effects
• What is the role of nanoparticles in drug delivery systems?

  They enhance the delivery of therapeutic agents
• Why are nanoparticles considered for use in sunscreens?

  They provide better UV protection without white residue
• How do nanoparticles affect the efficiency of chemical reactions?

  They increase the rate of reactions due to high surface area
• What is the significance of the high surface area of nanoparticles?

  It allows for more interactions with other substances
• What is one application of nanoparticles in the field of medicine?

  Drug delivery systems
• How do nanoparticles improve the effectiveness of sunscreens?

  By providing better UV protection without residue
• What is the impact of nanoparticles on the environment?

  They can help reduce pollution levels
• What is a potential health concern regarding nanoparticles?

  They may have unknown long-term effects
• What is a common use of nanoparticles in electronics?

  Improving conductivity in devices
• How do nanoparticles enhance drug delivery?

  By improving absorption and targeting
• What is the relationship between nanoparticle size and their interaction with substances?

  Smaller nanoparticles interact more effectively
• What is the role of nanoparticles in environmental cleanup?

  They help in reducing pollutants
• What is a characteristic of nanomedicine?

  It uses nanoparticles for medical applications
• How do nanoparticles contribute to the effectiveness of sunscreens?

  They provide better UV protection without residue
• How does the high surface area of nanoparticles affect their reactivity?

  It increases their reactivity with substances
• What is a potential risk associated with the use of nanoparticles?

  They may have unknown health effects
• What is a common application of nanoparticles in drug delivery?

  Enhancing the delivery of therapeutic agents
• How do nanoparticles improve the effectiveness of sunscreens?

  By providing better UV protection without residue