Nanoparticles

Nanoparticles

Multiple Choice

Between 2500nm and 10000nm?

• Nano

• Coarse

• Fine

Multiple Choice

Between 1nm and 100nm?

• Nano

• Coarse

• Fine

Multiple Choice

Between 100nm and 2500nm?

• Nano

• Coarse

• Fine

Fill in the Blank

Nanoparticles are useful as catalysts as they have extremely high

Multiple Select

Nanoparticles are extremely useful as:

• Jewellery

• Adhesives

• Medicines

• Surfactants

• Catalysts

Fill in the Blank

Calculate the volume of the large (left side) Square (click to enlarge)

Fill in the Blank

Calculate the surface area of the large (left side) Square (click to enlarge)

Fill in the Blank

What is the surface are to volume ratio?

Fill in the Blank

Calculate the total volume of the set of smaller cubes.

Fill in the Blank

Calculate the surface area of the set of smaller cubes.

Fill in the Blank

What is the surface are to volume ratio?

Multiple Choice

Which has the larger SA: V Ratio?

Poll

On a scale of 1-5 how condfident are we on SA:V ratio calculations?

• 1 - Oh god, No

• 2 - I need more time

• 3 - It's OK

• 4 - Fairly conifdent

• 5 - I find them quite straightforward

Multiple Select

What is a downside of Nanoparticles?

• Long term effects are not known

• Smell funny

• Too expensive

• Potential environmental concerns

Multiple Choice

Between 1nm and 100nm?

• Nano

• Coarse

• Fine

Poll

What do you think is the most important use of nanoparticles? (Your opinion)

• Catalysts - improving the efficiency of chemical reactions and making them more environmentally friendly.

• Nanomedicine: As discussed in previous lessons, fullerenes can be used to deliver drugs and reduce side affects.

• Silver Nanoparticles: these have antibacterial properties so can be used in first aid equipment and PPE as well as deodorants.

• Computer Chips: some nanoparticles conduct electricity (remember graphene?) so can be used in microchips.

• Sun-block: nanoparticles can block and absorb harmful UV rays more efficiently than normal sunblock.

Open Ended

Why (justify your choice)?

There is an exam question for you to try on Google classroom

Enjoy!