Nano-particles

Question 1

What are silver nanoparticles

Answer 1

(a nano-particle is 1-100nm in size) and have different properties. Silver nanoparticles have antibacterial properties as they interfere with the reproduction of bacteria
used in: anti-bacterial sprays, plasters and socks

Question 2

What are titanium dioxide nanoparticles

Answer 2

Absorb UV light but reflect visible ( invisible) and can be used in suncreams

Question 3

What are the disadvantages of nanoparticles

Answer 3

Very small and can be easily absorbed into the body (breathing or absorption
unknown side-effects on the body
might cause skin-irritation
no idea on the long term health/ environmental effects