Ambipolar charge transport in DNA molecules

V. A.L. Roy, Ella Lai Ming Wong, Ben Chi Bun Ko, Chien Tu Chao, Siu Cheong Yan, Beiping Yan, Jong-Ching Wu, Chi Ming Che

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

A method is proposed to fabricate a devices containing lambda phage DNA, methylated lambda phage DNA, and calf thymus DNA molecules. The study observed that the double stranded DNA molecules have ambipolar charge transport properties with current characteristics. The study used drop casting, molecular stretching, and trapping methods to cast DNA molecules on the top of Au patterned devices. The scanning electron microscopy (SEM) was used to verify the coverage of the devices the the DNA molecules. It was observed during the study that the negatively charged DNA molecules can form a film with increasing thickness. The study found that the drop cast devices prepared with Me-λ-DNA, λ-DNA or CT-DNA molecules showed low drain currents and reduce the interactions between the DNA molecules.

Original languageEnglish
Pages (from-to)1258-1262
Number of pages5
JournalAdvanced Materials
Volume20
Issue number7
DOIs
Publication statusPublished - 2008 Apr 4

Fingerprint

Charge transfer
DNA
Molecules
Bacteriophages
Drain current
Thymus
Transport properties
Stretching
Casting
Scanning electron microscopy

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Roy, V. A. L., Wong, E. L. M., Ko, B. C. B., Chao, C. T., Yan, S. C., Yan, B., ... Che, C. M. (2008). Ambipolar charge transport in DNA molecules. Advanced Materials, 20(7), 1258-1262. https://doi.org/10.1002/adma.200701179
Roy, V. A.L. ; Wong, Ella Lai Ming ; Ko, Ben Chi Bun ; Chao, Chien Tu ; Yan, Siu Cheong ; Yan, Beiping ; Wu, Jong-Ching ; Che, Chi Ming. / Ambipolar charge transport in DNA molecules. In: Advanced Materials. 2008 ; Vol. 20, No. 7. pp. 1258-1262.
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Roy, VAL, Wong, ELM, Ko, BCB, Chao, CT, Yan, SC, Yan, B, Wu, J-C & Che, CM 2008, 'Ambipolar charge transport in DNA molecules', Advanced Materials, vol. 20, no. 7, pp. 1258-1262. https://doi.org/10.1002/adma.200701179

Ambipolar charge transport in DNA molecules. / Roy, V. A.L.; Wong, Ella Lai Ming; Ko, Ben Chi Bun; Chao, Chien Tu; Yan, Siu Cheong; Yan, Beiping; Wu, Jong-Ching; Che, Chi Ming.

In: Advanced Materials, Vol. 20, No. 7, 04.04.2008, p. 1258-1262.

Research output: Contribution to journalArticle

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Roy VAL, Wong ELM, Ko BCB, Chao CT, Yan SC, Yan B et al. Ambipolar charge transport in DNA molecules. Advanced Materials. 2008 Apr 4;20(7):1258-1262. https://doi.org/10.1002/adma.200701179