7 Questions
describe use of nanoparticles in sunscreen
sunscreen: zinc oxide and titanium dioxide nanoparticles in sunscreens absorb UV light without reflecting visible light because they are smaller than the wavelength of visible light, making the sunscreen transparent
describe use of nanoparticles on surfaces
self cleaning surfaces: coatings with titanium dioxide nanoparticles on window glass can break down organic material and prevent water droplets from forming, thus cleaning the glass
describe use of nanoparticles on stain-resistant fabrics
polymer coatings containing nanoparticles like carbon nanotubes create nano-sized structures that repel water and dirt, mimicking the lotus effect
describe a use of nanoparticles in the automotive industry
carbon nano-composites are used ti produce lighter and more durable bumpers
describe a use of nanoparticles in the medical field
drug delivery: encapsulate drugs for targeted delivery, potentially treating cancer with greater precision
antibacterial products: silver nanoparticles in bandages and garments provide antibacterial properties
potential health risks of nanoparticles?
nanoparticles can be highly reactive and catalytic, potentially causing cellular damage if they penetrate biological tissues
nanoparticles like zinc oxide in sunscreen could potentially penetrate the skin
safety and regulations of nanoparticles?
organisations like the CSIRO conduct studies to udnerstand and mitigate the health and environmental risks associated with nanoparticles
regulations to manage risks of nanotechnology: TGA therapeutic goods administration in Australia ensures that products like sunscreens are safe and effective, requiring thorough testing and approval of ingredients
Learn about the role of nanoparticles in sunscreen, their benefits and potential risks. Test your knowledge on how they enhance UV protection and improve skin care.
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