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Nanochemistry: Buckminsterfullerene Essay

Buckminsterfullerene is an allotrope of Carbon with a Formula of C60. It was discovered in 1985 by scientist at the Universities of Sussex and Rice. It was discovered by Harold Kroto, James R. Heath, Sean O’Brian, Robin Curl and Richard Smalley. The group named it after Richard Buckminster-Fuller because the shape is that of a Geodesic Dome and he was a noted architect who favoured this shape and the scientists thought it suitable. The dome is one comprised of hexagons and Pentagons [see below] and many examples can be seen in botanical gardens (e.g Missouri and Montreal).

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Buckminsterfullerene was not discovered because people wanted to discover it: it was discovered purely by chance. Scientists were trying to understand about the absorption of interstellar dust and the theorised that they must have long chains of atoms. Further research with a molecular beam proved their theory right (to some extent), as there were not long chains, just one big ball – hence the nickname “Bucky balls”.image01.pngimage02.png

The other allotropes of carbon (diamond and graphite are giant molecular structures whilst Buckminsterfullerene is simple molecular. This means that the structures of diamond could go on forever whilst Buckminsterfullerene has a defined shape and the molecule has a maximum number of atoms [see above]. Buckminsterfullerene has a maximum of C70 whereas each diamond molecule has 5 atoms; every atom bonds with four others and this pattern repeats itself forever: Though there is no chemical formula (for this reason) it can be expressed as C?. Graphite has similar properties with there being many hexagons repeated over. Graphite is brittle which makes it so good for pencils, the layers break off easily.

A fullerene is a substance that spherical or cylindrical appearance made up of dozens of carbon (and now sometimes other elements). Fullerene can be made into nanotubes by getting rolls of graphite layers and rolling them into tubes. When buckminsterfullerene was discovered, scientists were able to research more into nanotechnology. Substances could be place in, on or outside of the tubes and sent into the body. Currently, medicines can be injected into the nanotubes and sent through the body to relevant part. This is especially useful when the medicine could be harmful to other parts.

It is possible these tubes could be used in cancer treatment where the chemotherapy drugs are inserted in the tubes and injected in the body. They could be imported into car bumpers, bridges, home equipment (radios, PCs, TVs etc.) to make the container and outside stronger. Over time, the nanotubes have and can increase in strength and in their usage. In time nanotubes could be a key part to many aspects of everyday life

However, they are expensive to make at the moment and some research has shown that they could damage our health. If the tubes contained harmful substances that went to the wrong part of the body, we could possibly end up with physical or mental disabilities that could affect our children.

http://en.wikipedia.org/wiki/Fullerene

http://www.fkf.mpg.de/andersen/fullerene/intro.html

Google

http://www.3rd1000.com/bucky/bucky.htm

http://www.wpbschoolhouse.btinternet.co.uk/page04/4_72bond.htm#BIG

http://www.wisegeek.com/what-are-fullerenes.htm

http://www.nanotech-now.com/nanotube-buckyball-sites.htm

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