abstract: This thesis describes several approaches to next generation DNA sequencing via tunneling current method based on a Scanning Tunneling Microscope system. In chapters 5 and 6, preliminary results have shown that DNA bases could be identified by their characteristic tunneling signals. Measurements taken in aqueous buffered solution showed that single base resolution could be achieved with economic setups. In chapter 7, it is illustrated that some ongoing measurements are indicating the sequence readout by making linear scan on a piece of short DNA oligomer. However, to overcome the difficulties of controlling DNA especially ssDNA movement, it is much better to have the tunneling measurement incorporated onto a robust nanopore device to realize sequential reading of the DNA sequence while it is being translocated. / Dissertation/Thesis / Ph.D. Physics 2011
| Identifer | oai:union.ndltd.org:asu.edu/item:8943 |
| Date | January 2011 |
| Contributors | Huang, Shuo (Author), Lindsay, Stuart (Advisor), Sankey, Otto (Committee member), Tao, Nongjian (Committee member), Drucker, Jeff (Committee member), Ros, Robert (Committee member), Arizona State University (Publisher) |
| Source Sets | Arizona State University |
| Language | English |
| Detected Language | English |
| Type | Doctoral Dissertation |
| Format | 150 pages |
| Rights | http://rightsstatements.org/vocab/InC/1.0/, All Rights Reserved |
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