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Topic 3 Chemistry > Nano Particles > Flashcards

Nano Particles Flashcards

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1
Q

What is the size of a nanometre

A

1-100nm in size

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2
Q

How many meters is a nanometre

A

-9
1x10 M

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3
Q

Example of use of nano particles

A

Antimicrobial silver particles used in socks insoles and few clothing textiles

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4
Q

What is sunscreen made from

A

Titanium oxide and zinc oxide

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5
Q

Benefits of nano particles in sunscreen ?

A

Better skin coverage

More effective protection

Transparent on skin

Doesn’t degrade upon exposure to sun

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6
Q

Negatives of nano particles in sun screen?

A

Harmful to environment

Potential cell damage in body-able to penetrate cell membrane or breathed in which could be toxic

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Topic 3 Chemistry (5 decks)

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