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Current voltage characteristics of intrinsic guanine rich λ-DNA sequences

Ajore, Ram LU ; Kaur, Inderpreet; Sobti, R C and Bharadwaj, Lalit M (2007) In Azojono
Abstract
In the present manuscript, current-voltage (I-V) measurements of double stranded guanine rich sequences of λ-DNA have been reported. These sequences show length dependent conductivity. Conductivity (σ0) DNA of length, L = 0.6494 x 10-4 (1910 bp), 1 x 10-4 (2947 bp) and 1.3498 x 10-4 cm (3970 bp) was found to be 2.4 x 105, 7.7 x 102 Ω-1cm-1 and insulator behavior, respectively. I-V characterization of immobilized DNA was done on gold micro-electrodes fabricated by laser ablation using Optical Tweezer of power 0.66 mW. Charge transfer distance evaluation of intrinsic guanine rich sequences show increasing frequency of intervening bases between conducting units with increase in length. Outcomes of the present study can be useful for... (More)
In the present manuscript, current-voltage (I-V) measurements of double stranded guanine rich sequences of λ-DNA have been reported. These sequences show length dependent conductivity. Conductivity (σ0) DNA of length, L = 0.6494 x 10-4 (1910 bp), 1 x 10-4 (2947 bp) and 1.3498 x 10-4 cm (3970 bp) was found to be 2.4 x 105, 7.7 x 102 Ω-1cm-1 and insulator behavior, respectively. I-V characterization of immobilized DNA was done on gold micro-electrodes fabricated by laser ablation using Optical Tweezer of power 0.66 mW. Charge transfer distance evaluation of intrinsic guanine rich sequences show increasing frequency of intervening bases between conducting units with increase in length. Outcomes of the present study can be useful for ascertaining the behavior of nanowires with varying charge transfer distance (Less)
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published
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Azojono
DOI
10.2240/azojono0118
language
English
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no
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0fcf2719-d566-4f10-bc54-55d22dee74ca
date added to LUP
2017-07-25 12:27:10
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2017-11-14 09:52:02
@article{0fcf2719-d566-4f10-bc54-55d22dee74ca,
  abstract     = {In the present manuscript, current-voltage (I-V) measurements of double stranded guanine rich sequences of λ-DNA have been reported. These sequences show length dependent conductivity. Conductivity (σ0) DNA of length, L = 0.6494 x 10-4  (1910 bp), 1 x 10-4  (2947 bp) and 1.3498 x 10-4 cm (3970 bp) was found to be  2.4 x 105, 7.7 x 102 Ω-1cm-1 and insulator behavior, respectively. I-V characterization of immobilized DNA was done on gold micro-electrodes fabricated by laser ablation using Optical Tweezer of power 0.66 mW. Charge transfer distance evaluation of intrinsic guanine rich sequences show increasing frequency of intervening bases between conducting units with increase in length. Outcomes of the present study can be useful for ascertaining the behavior of nanowires with varying charge transfer distance},
  author       = {Ajore, Ram and Kaur, Inderpreet and Sobti, R C and Bharadwaj, Lalit M},
  language     = {eng},
  series       = {Azojono},
  title        = {Current voltage characteristics of intrinsic guanine rich λ-DNA sequences},
  url          = {http://dx.doi.org/10.2240/azojono0118},
  year         = {2007},
}