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LPL22: Electronic Properties of DNA for Bioelectronics

Project ID LPL22
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Start Date NO START DATE RECORDED
Last Updated Fri 2003-Aug-22 15:38:09
Abstract Conduction mechanism in DNAs has been investigated for tangled structures. Thus, the conduction mechanism is still ambiguous because of complicated conducting paths. In this work, DNA will be stretched by using sub-10nm gap electrodes, which are defined by novel spacer lithography. Stretched DNA chain can be confined at the nano-gap electrodes made of poly-silicon across and along the gaps. Then, conductance mechanism will be thoroughly investigated along phosphate chain and hydrogen bond. Previous works showed that A/T and G/C were n-type and p-type semiconductors, respectively. If this result is reproduced, DNA nano-junction diodes can be feasible for applications of bioelectronics because they are similar to pn-junction diodes. Thus, peta (1015) level switch array devices can be implemented, which are completely biocompatible.
Status Continuing
Funding Source
IAB Research Area BIOMEMS AND MICROFLUIDICS
Researcher(s) Yang-Kyu Choi
Advisor(s) Luke P. Lee
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