Nanotechnology. John Kelly Girls Technology College 16/11/2006. What is nanotechnology?. Nanotechnology is basically a materials science which has the following features:
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John Kelly Girls Technology College
Nanotechnology is basically a materials science which has the following features:
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.
When thinking about nanotechnology it’s 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
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.
in the U.K ?
Sunblock: see through sunblocks by Boots,
Body Shop, Green People and others
Wound dressings: Smith&Nephew 'Anticoat'
Fuel additives: Oxonica/Cerulean
International 'Envirox' fuel additive is in the
process of being provided to the entire
Stagecoach UK bus fleet
Printer paper: Kodak 'ColorLast' inkjet
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
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.
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.
The benefits in this product is supported by the nanotechnology so it helps the skin and gives vitamin D
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.
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.
This will start from 4th November – 14th November.