Monday, September 13, 2010

New Technique to Visualize The Structure of Molecules

    I'am writing a article summary to meet standard two. The article, ' Dead Simple' way to see atomic structure is about how researchers have developed a way to pin down moving molecules under room-temperature. They were studying graphene on an atomically flat surface of mica and found some structures trapped between the graphene. Graphene is composed of one-atom layer of carbon atoms in a honeycomb-like lattice. The researchers decided to conduct experiments to test this new idea. They put graphene sheets at different humidity levels. It turned out that the graphene sheet hugged the water molecules tightly, and revealed their atomic structure when examined with atomic force microscopy. This technique is dead simple. The graphene holds the absorbed water molecules in place. By using this technique, there has been new evidence of how water coats surfaces. The first layer of water on mica is two water molecules thick, and it has the structure of ice. Researchers are working on improving the resolution of this technique, and help other types of molecules get there 3-D structure.

    This technique is really neat, because it determines the atomic structure of molecules. It has an impact on society, because it gives detail about the structure of molecules. If molecules will be able to get there 3-D structure it will have a bigger affect on society. Researchers always like to improve on the study that they work on. People are usually fascinated when new techniques are developed and how it improves the natural world. This article gave a lot of information, and it really explained this new technique that researchers have found dealing with water.


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