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Marie Wee

on 4 September 2013

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Transcript of Nanotechnology

Celebrating Science:


Why is Nanotechnology needed?
What is nanotechnology?

-The manipulation of matter on an atomic and molecular scale.
-It is the engineering of functional systems at the molecular scale.
How it started?
-The ideas and concept started with a talk called "There's Plenty of Room at the Bottom" by a physicist Richard Feynman on December 29, 1959
-Nanotechnology might be able to create new materials and devices with a vast range of applications

-eg. medicine, electronics, and bio materials
Disadvantages of
-Concerns about the toxicity and environmental impact of nanomaterials
Nanotechnology in Medicine Application: Drug Delivery
- Nanotechnology in medicine is currently being developed

-drugs, heat, light or other substances to specific types of cells (such as cancer cells).

Nanotechnology in Medicine Application: Therapy Techniques
-Researchers have developed "nanosponges" that absorb toxins and remove them from the bloodstream.

-Nanorobots could be programmed to repair specific diseased cells, functioning in a similar way to antibodies in our natural healing processes.

Nanotechnology in Medicine Application: Cell Repair
-Nanotechnology would be able to help us in the future, like in medicience, cosmetics, or technology.

Done by: Vanessa
What is Science and why is it importatant?
Science is about the explanation of what happens in the univerese and the invention of items or technology and medicine that can allow us to live in comfort.
Nanotechnology in Art:
1,600-Year-Old Goblet

The glass chalice appears jade green when lit from the front but blood-red when lit from behind This puzzled scientists for decades.

What the researches
found out
The mystery was solved in 1990.
Researchers in England scrutinized broken fragments under a microscope and discovered that the Roman artisans impregnated the glass with particles of silver and gold, ground down until they were as small as 50 nanometers in diameter.

How it worked?
When hit with light, electrons belonging to the metal flecks vibrate in ways that alter the color depending on the observer’s position.

Appears jade green when lit from the front but blood-red when lit from behind

Full transcript