What is it about?
DNA has been of interest to molecular electronics community for a long time, since it is easy to make and shows interesting electric properties. We calculate how well DNA conducts electric current - for all possible combinations of A,T,C,G up to 7 base pairs in length, which is over 40,000 different sequences. Armed with that knowledge, we draw conclusions about which DNA sequences are best conductors of current
Photo by Ronald Smeets on Unsplash
Why is it important?
As companies create smaller and more powerful laptops, at some point we will need to use individual molecules as electric wires. DNA is an interesting candidate for such a role. Besides, it's really important to understand how well DNA carries current for biologists, who study DNA damage and repair. Finally, a DNA molecule can be identified ("sequenced") by measuring the electric current through it in a special device.
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This page is a summary of: From Exhaustive Simulations to Key Principles in DNA Nanoelectronics, The Journal of Physical Chemistry C, February 2018, American Chemical Society (ACS), DOI: 10.1021/acs.jpcc.7b12744.
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