Shinnosuke Kakimoto

1
Shinnosuke Kakimoto Hiroyuki Tashiro Ryo
Hatayama Rina Takashima Hiroaki Sasaki
Nicholas Bunce Calum Leslie Rosemary Pike Shaun
Miller
2
introduction
What is Nanotechnology? Nanotechnology is the
design, characterisation, production and
application of structures, devices and systems by
controlling shape and size at the nanoscale from
wikipedia.com
3

• Misconceptions
• Nanotechnology is NOT fancy
• robots repairing cells in a body
• The Grey Goo
• theory is NOT true

4
Measurements
1 metre
1 millimetre
1 micrometer
1 nanometre
5
What we did

• Observations and measurements
• Compare and use Microscopes
• Used a Focused ion beam (FIB)
• Took lots of images of structures and samples.

6
Equipment of nano technology
7
Optical Microscopes
No computer required Camera
Light source
8
Optical Microscopes

• Disadvantages
• Low resolution (few micrometers)
• Low magnification

• Advantages
• Instant image
• Cheap to buy (only several thousands)
• Colour image

9
Scanning Electron Microscope
Uses electrons fired onto the surface Detects
back scattered electrons to create a
computerised image
10
Scanning Electron Microscope

• Disadvantages
• Destroys biological
• samples
• Beam damage
• Lack of colour

• Advantages
• High vacuum high resolution (5nm)
• Relatively quick image
• Average price (early 100 thousands)

11
(No Transcript)
12
5 microns
13
500 nanometres
14
Enviromental SEM
Electron microscope but for biological
stuff You can even put live bugs in it!
15
Enviromental SEM
16
(No Transcript)
17
(No Transcript)
18
(No Transcript)
19
20 microns
20
(No Transcript)
21
Transmition Electron Microscope
Electron microscope that fires electrons through
the sample
22
Transmition Electron Microscope
23
Atomic Force Microscope
Works like a blind man reads Braille Uses a
needle and cantilever
24
Atomic Force Microscope

• Advantages
• Able to obtain 3D image
• Very high resolution

• Disadvantages
• Takes a very long time to produce an image at
  least 10 minutes

25
Focused Ion Beam
This is SEM with focused ion beam device.
26
(No Transcript)
27
(No Transcript)
28
These are our photos!
1mm
1mm
29
(No Transcript)
30

• This drawing was designed by ourselves and was
  milled by FIB.
• This photo was taken with using SEM.

This is the character of a Japanese cartoon.
31
This is very tiny portrait of Rosemary. It was
also milled by FIB.
Different shades are shown on the image by how
deep the beam mills. This is shown by this 3D
image.
32
Uses and futures of Nanotechnology

• Carbon nanotubes
• -To replace carbon fibres
• -Used to build computer components
• Strong and very conductive.
• Cancer diagnosis
• Transparent Sunscreen

33
Conclusion

• Nanotechnology has many important uses, and much
  research is still being done into its potential.
• Measurement and microscopy is the key!

34
(No Transcript)
35
(No Transcript)