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Detailed temperature dependence experiments were performed that traced the impedance response of \u03bb\u2010DNA until its denaturation. UV irradiation experiments where conductivity was lost at higher and longer UV exposures helped to establish that it is indeed \u03bb\u2010DNA molecular wires that generate conductivity. The subsequent renaturation of \u03bb\u2010DNA resulted in the recovery of current conduction, providing yet another proof of the conducting DNA molecular wire bridge. The temperature results also revealed hysteretic and bi\u2010modal impedance responses that could make DNA a candidate for nanoelectronics components like thermal transistors and switches. Further, these experiments shed light on the charge transfer mechanism in DNA. At higher temperatures, the expected increase in thermal\u2010induced charge hopping may account for the decrease in impedance supporting the \u2018charge hopping mechanism\u2019 theory. UV light, on the other hand, causes damage to GC base\u2010pairs and phosphate groups reducing the path available both for hopping and short\u2010range tunneling mechanisms, and hence increasing impedance \u2013 this again supporting both the \u2018charge hopping\u2019 and \u2018tunneling\u2019 mechanism theories.<\/jats:p>","DOI":"10.1049\/iet-nbt.2014.0044","type":"journal-article","created":{"date-parts":[[2015,1,28]],"date-time":"2015-01-28T10:08:42Z","timestamp":1422439722000},"page":"153-163","source":"Crossref","is-referenced-by-count":5,"title":["AC electrical characterisation and insight to charge transfer mechanisms in DNA molecular wires through temperature and UV effects"],"prefix":"10.1049","volume":"9","author":[{"given":"Sam","family":"Kassegne","sequence":"first","affiliation":[{"name":"MEMS Research Lab Department of Mechanical Engineering College of Engineering San Diego State University 5500 Campanile Drive San Diego CA 92182\u20101323 USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Denni","family":"Wibowo","sequence":"additional","affiliation":[{"name":"MEMS Research Lab Department of Mechanical Engineering College of Engineering San Diego State University 5500 Campanile Drive San Diego CA 92182\u20101323 USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"James","family":"Chi","sequence":"additional","affiliation":[{"name":"MEMS Research Lab Department of Mechanical Engineering College of Engineering San Diego State University 5500 Campanile Drive San Diego CA 92182\u20101323 USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Varsha","family":"Ramesh","sequence":"additional","affiliation":[{"name":"MEMS Research Lab Department of Mechanical Engineering College of Engineering San Diego State University 5500 Campanile Drive San Diego CA 92182\u20101323 USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Alaleh","family":"Narenji","sequence":"additional","affiliation":[{"name":"MEMS Research Lab Department of Mechanical Engineering College of Engineering San Diego State University 5500 Campanile Drive San Diego CA 92182\u20101323 USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ajit","family":"Khosla","sequence":"additional","affiliation":[{"name":"MEMS Research Lab Department of Mechanical Engineering College of Engineering San Diego State University 5500 Campanile Drive San Diego CA 92182\u20101323 USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"John","family":"Mokili","sequence":"additional","affiliation":[{"name":"Department of Biology San Diego State University 5500 Campanile Drive San Diego CA 92182 USA"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"265","published-online":{"date-parts":[[2015,6]]},"reference":[{"key":"e_1_2_7_2_1","doi-asserted-by":"publisher","DOI":"10.1088\/2058-7058\/14\/8\/33"},{"key":"e_1_2_7_3_1","doi-asserted-by":"publisher","DOI":"10.1063\/1.1338967"},{"issue":"4","key":"e_1_2_7_4_1","first-page":"241","volume":"28","author":"Berlin Y.A.","year":"2000","journal-title":"DNA as a molecular wire, super lattices and microstructures"},{"key":"e_1_2_7_5_1","doi-asserted-by":"publisher","DOI":"10.1038\/35826"},{"key":"e_1_2_7_6_1","unstructured":"CsakiA.MaubachG.BornD.FritzscheW.: \u2018DNA\u2010based construction for nanoelectronics\u2019.LITHO 2004 Agelonde\u2010France 2004 pp.13\u201316"},{"issue":"8","key":"e_1_2_7_7_1","first-page":"186402\u20101","article-title":"Low frequency dynamics of disordered XY spin chains and pinned density waves","volume":"88","author":"Fogler M.","year":"2002","journal-title":"Phys. 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