Nanotechnology

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Nanotechnology

• John Kelly Girls Technology College
• 16/11/2006

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What is nanotechnology?

• Nanotechnology is basically a materials science
  which has the following features
• Research and development at molecular or atomic
  levels, with lengths ranging between about 1 to
  100 nanometres.
• Creation and use of systems, devices, and
  structures which have special functions or
  properties because of their small size.
• Ability to control or manipulate matter on a
  molecular or atomic scale.

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Advantages of nanotechnology

• Most inventions help us live a good daily life.
  Nanotechnology is a good technological advance
  because of its positive benefits to pollution,
  cost, food and many more. Nanotechnology could
  help fix many problems that we come across in our
  everyday lives.

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When thinking about nanotechnology its useful to
contrast it with another revolutionary
technology bio technology. The bio part of
biotechnology refers to what the technology is
dealing with. Whereas with nanotechnology the
nano refers not to a thing but to the scale at
which the technology takes place
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The nano scale
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The nano-scale Its difficult to grasp quite how
small the nano-scale is. To give some
reference points one nanometre (nm) is one
billionth of a metre, or one millionth of a
millimetre. A human hair is 80,000nm thick, a
red blood cell is 5,000nm in diameter, a
DNA molecule is 2.5nm wide and 10 hydrogen atoms
arranged side by side measure 1nm.
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What products are in the market in the U.K ?
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Glass 'Activ' self cleaning glass by
Pilkington Sunblock see through sunblocks by
Boots, Body Shop, Green People and others Wound
dressings SmithNephew 'Anticoat' wound
dressings Fuel additives Oxonica/Cerulean Intern
ational 'Envirox' fuel additive is in the
process of being provided to the entire
Stagecoach UK bus fleet
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Cosmetics L'Oreal 'Plenitude Revitalift' anti-wri
nkle cream Printer paper Kodak 'ColorLast'
inkjet printer paper Clothing Stain resistant
and wrinkle resistant fabric by Nanotex used in
some clothing lines by Levis, Regatta, Marks and
Spencer, Eddie Bauer, GAP, Lee, and Kathmandu.
Solefresh anti odour nanosilver socks from JR
Nanotech Sports equipment Carbon
nanotube reinforced tennis rackets from
Babolat. Tennis balls from Wilson
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Nanotechnologybad?
Why do some people think it is bad?
Many nanoparticles show unique chemical,
electrical, optical, and physical properties. The
great diversity of nanoparticles types have made
it difficult for scientists to make general
statements about the potential safety hazards
that nanoparticles might pose to living
organisms. There has been a study showing that
inhaled nanosized particles gather in the nasal
cavities, lungs and brains of rats. Scientists
believe this build-up could lead to harmful
inflammation and risk of brain damage or central
nervous system disorders.
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In late march 2006, six people went to hospital
with serious respiratory problems after using a
new German bathroom cleaning product called Magic
Nano. The product was removed from sale after
just three days. Some manufacturerers are using
high strength materials for tennis rackets and
golf clubs and stain resistant fabrics. These
products contain nanoparticles of zinc oxide. But
they all have one thing in common-their Nano
components have not gone through safety tests.
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L'Oreal RevitaLift Eye

• The benefits in this product is supported by the
  nanotechnology so it helps the skin and gives
  vitamin D

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L'Oreal Dermo-Expertise RevitaLift Eye
Anti-Wrinkle

• The Bottom LineMs. McCann tried this, and found
  the skin around her eyes felt soft and looked
  shiny at first but no lasting effects. She did
  not find it comfortable.

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What are nanotechnology socks
Nanotechnology socks contain nanoparticles of
silver. These particles help kill the bacteria
that makes our feet smell. Many people with
smelly feet will benefit from this technology.
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What We Will Be Doing.

• A student will be wearing socks made from
  nanotechnology for about 10 days. The student
  will observe how many days the socks take to get
  smelly. This student will record the socks
  progress day to day.
• This will start from 4th November 14th
  November.

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Table
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Tested on Teacher!

• Our teacher, Mrs. McCann also tried the
  Nanosocks.
• She found that they did not smell at all after
  wearing them for four days and thought her heels
  felt softer.