Uses Of Nanoparticles (chemistry Only) (GCSE Chemistry)

Which chemical property explains why some nanoparticles are added to lubricants to reduce wear?

Which property of carbon nanotubes makes them useful in some electronic components?

Why are semiconductor nanoparticles (quantum dots) useful in some sensors and displays?

Which nanoparticle property would most directly affect the diffusion of the particle through a gel for drug delivery?

Why might regulatory chemists require measurement of the dissolution (ion release) rate of metal nanoparticles rather than only total metal content?

A researcher designs gold nanoparticles coated with thiol groups to bind to a protein target. Which chemical bond is primarily responsible for attaching the thiol to the gold surface?

Which chemical factor is most important when designing nanoparticles for use in sunscreens that must be safe for skin?

Which statement best describes the environmental fate of some polymer nanoparticles (microplastics) used in paints and coatings?

In sunscreen lotions, zinc oxide nanoparticles are used instead of bulk zinc oxide mainly because:

Which statement correctly links intermolecular forces and the use of nanoparticles in coatings to make water-repellent textiles?

Which use of silver nanoparticles relies on their strong chemical activity at surfaces?