Sunday, May 24, 2015

Week 8 I Nanotech and Art

            The different allotropes of carbon described by Dr. Gimzewski seemed to me to be works of art created by nature.  The way that these atoms of the same element could be connected in different ways in order to create substances with different physical properties is a fascinating principle. Additionally the microscopy technologies used to identify these structures are to me, a symbol of human ingenuity being utilized in order to decode nature’s art (Gimzewski).

            My interest in the allotropes of carbon led me to do additional research into the allotropes of other elements to see how different structures could influence function. Perhaps one of the most famous allotropes of oxygen is the ozone layer that exists in our atmosphere.  Oxygen exists primarily as O2 but ozone has an extra atom connected into O(Shakhashiri). his layer is required to protect the Earth from excessive UV radiation (What is Ozone?).  Another cool allotrope is the black form of selenium that connects in a structure with up to 1000 linked atoms (Stewart).

An image of the ozone layer that protects the life on Earth below it

A bead of black selenium

            With humanity’s ability to visualize the different structures of allotropic compounds came their ability to influence them.  This has led to the ability to manufacture the favorable allotropes that have uses in our society.  One such new method was developed at MIT recently in order to create graphene.  Because of the substance’s potential uses in electronic devices and solar panels, this could prove a significant technologic advancement (Chandler).  As we continue to find ways to control molecular structure, it might prove interesting to assemble the atoms in different ways to see if we can develop a new allotrope of an element that is both stable and useful.

A sheet of carbon atoms forming a large graphene molecule

             

Chandler, David. "A New Way to Make Sheets of Graphene." MIT News. Massachusetts Institute of Technology, 14 May 2014. Web. 24 May 2015. <http://newsoffice.mit.edu/2014/new-way-make-sheets-graphene-0523>.

Gimzewski, Jim. "Nanotech Jim Pt2." YouTube. YouTube. Web. 24 May 2015. <https://www.youtube.com/watch?t=1058&v=HEp6t0v-v9c>.

Shakhashiri, Bassan. "Chemical of the Week -- Ozone." Science Is Fun. Web. 24 May 2015. <http://scifun.chem.wisc.edu/chemweek/ozone/ozone.html>.

Stewart, Doug. "Selenium Element Facts." Chemicool. Web. 24 May 2015. <http://www.chemicool.com/elements/selenium.html>.


"What Is Ozone?" NOU Belize Website. Web. 24 May 2015.
<http://www.noubelize.gov.bz/sites/nou-belize/default.asp?site=nou-belize&page_id=A8D8B934-55B4-47BE-B04F-7CA86B0351A6>.

1 comment:

  1. Nice, I like how you do a little research on your own to add to the discussion. Graphene is a cool example because it has a ton of uses and is considered by some to be a super material. Also on the subject of odd combinations of molecules, I think chirality is also really cool in that you can have two molecules that are almost identical but are actually mirror images and non superimposable (like your left and right hand). Chiral molecules often have weird consequences as well.

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