[eng sub] How graphene could save our brains

The video explores graphene, a material discovered in 2004, known for its unique properties like flexibility, conductivity, and strength. It discusses its potential applications in technology and neuroscience, including longer battery life, water desalination, and brain implants. The challenges of large-scale production and the future prospects of graphene in improving existing technologies and creating new applications are also covered.

What is the basic structure of graphene?

• A single layer of silicon atoms arranged in a hexagonal lattice

• A double layer of silicon atoms arranged in a square lattice

• A double layer of carbon atoms arranged in a square lattice

• A single layer of carbon atoms arranged in a hexagonal lattice

Who discovered graphene and how?

• Marie Curie using X-ray diffraction

• Isaac Newton using a prism

• Andre Geim and Konstantin Novoselov using adhesive tape

• Albert Einstein using a microscope

Which property of graphene makes it suitable for use in solar panels?

• Its transparency

• Its opacity

• Its weight

• Its thickness

How can graphene oxide be used in environmental applications?

• As a fuel source

• To absorb radioactive waste

• To increase air pollution

• To generate electricity

What is a potential use of graphene in neuroscience?

• To decrease brain activity

• To increase brain size

• To create new types of neurons

• As a replacement for deep-implanted electrodes

What is a carbon nanotube?

• A single layer of carbon atoms in a flat sheet

• A self-folded sheet of carbon forming a tube

• A double layer of carbon atoms in a flat sheet

• A self-folded sheet of silicon forming a tube

What is the main challenge in using graphene for electrodes?

• Its high cost and biocompatibility issues

• Its lack of conductivity

• Its inability to be functionalized

• Its excessive weight

How can functionalized carbon nanotubes be used in neuroscience?

• To reduce brain activity

• To increase brain size

• To decrease brain temperature

• To promote neuronal growth

What is the effect of functionalizing graphene on its electrical signal transmission?

• It increases the transmission

• It decreases the transmission

• It stops the transmission completely

• It has no effect

What future prospects does graphene hold for cognitive functions?

• Increasing brain size

• Decreasing cognitive functions

• Decreasing brain size

• Improving cognitive functions of people without pathology