@inproceedings{7a2738bc35954dbd8be1de3df72e7f80,

title = "Charge transport properties of poly(dA)-poly(dT) DNA in variation of backbone disorder and amplitude of base-pair twisting motion",

abstract = "By using tight binding Hamiltonian model, charge transport properties of poly(dA)-poly(dT) DNA in variation of backbone disorder and amplitude of base-pair twisting motion is studied. The DNA chain used is 32 base pairs long poly(dA)-poly(dT) molecule. The molecule is contacted to electrode at both ends. The influence of environment on charge transport in DNA is modeled as variation of backbone disorder. The twisting motion amplitude is taking into account by assuming that the twisting angle distributes following Gaussian distribution function with zero average and standard deviation proportional to square root of temperature and inversely proportional to the twisting motion frequency. The base-pair twisting motion influences both the onsite energy of the bases and electron hopping constant between bases. The charge transport properties are studied by calculating current using Landauer-Buttiker formula from transmission probabilities which is calculated by transfer matrix methods. The result shows that as the backbone disorder increases, the maximum current decreases. By decreasing the twisting motion frequency, the current increases rapidly at low voltage, but the current increases slower at higher voltage. The threshold voltage can increase or decrease with increasing backbone disorder and increasing twisting frequency.",

author = "Rahmi, {Kinanti Aldilla} and Efta Yudiarsah",

note = "Publisher Copyright: {\textcopyright} 2016 Author(s).; 1st International Symposium on Current Progress in Mathematics and Sciences, ISCPMS 2015 ; Conference date: 03-11-2015 Through 04-11-2015",

year = "2016",

month = apr,

day = "19",

doi = "10.1063/1.4946940",

language = "English",

series = "AIP Conference Proceedings",

publisher = "American Institute of Physics Inc.",

editor = "Terry Mart and Djoko Triyono",

booktitle = "International Symposium on Current Progress in Mathematics and Sciences 2015, ISCPMS 2015",

address = "United States",

}