Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Electrical conduction through poly(dA)-poly(dT) and poly(dG)-poly(dC) DNA molecules.

K H Yoo1, D H Ha, J O Lee

  • 1Electronic Devices Group, Korea Research Institute of Standards and Science, Yusung, P.O. Box 102, Taejon 305-600, Korea. khyoo@phya.yonsei.ac.kr

Physical Review Letters
|November 3, 2001
PubMed
Summary

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

G-Computation Quantifying Caries Reduction by World Health Organization Sugar Limits in Children.

Journal of dental research·2026
Same author

Response to Letter to the Editor: "Early Childhood Exposures to Fluorides and Cognitive Neurodevelopment: A Population-Based Longitudinal Study".

Journal of dental research·2025
Same author

Intergenerational Oral Conditions' Relationships: The Role of Sugar Intake.

JDR clinical and translational research·2025
Same author

Controversies and Public Health Implications of Community Water Fluoridation.

Journal of dental research·2025
Same author

Key Mediators Reducing Socioeconomic Inequality in Early Childhood Caries.

JDR clinical and translational research·2025
Same author

Impact of Family Sociodemographics and Mother's Toothbrushing on Australian Preschool Children.

JDR clinical and translational research·2025

Electrical transport in DNA occurs via polaron hopping. Researchers demonstrated room-temperature DNA field-effect transistors, with poly(dA)-poly(dT) acting as an n-type and poly(dG)-poly(dC) as a p-type semiconductor.

Area of Science:

  • Molecular Biophysics
  • Nanotechnology
  • Semiconductor Physics

Background:

  • Understanding electrical transport in DNA is crucial for developing novel electronic devices.
  • DNA's potential as a conductive material remains an active area of research.

Purpose of the Study:

  • To directly measure electrical transport through specific DNA sequences.
  • To investigate the feasibility of room-temperature DNA-based field-effect transistors.
  • To determine the semiconductor type of different DNA molecules.

Main Methods:

  • Direct electrical transport measurements on poly(dA)-poly(dT) and poly(dG)-poly(dC) DNA molecules.
  • Investigation of current-voltage characteristics under varying gate voltages.
  • Analysis of charge transport mechanisms.

Related Experiment Videos

Main Results:

  • Electrical transport in DNA is primarily mediated by polaron hopping.
  • Successful demonstration of a DNA field-effect transistor operating at room temperature.
  • Poly(dA)-poly(dT) exhibited n-type semiconductor behavior.
  • Poly(dG)-poly(dC) exhibited p-type semiconductor behavior.

Conclusions:

  • Polaron hopping is a key mechanism for electrical conduction in DNA.
  • DNA field-effect transistors are feasible for room-temperature operation.
  • Different DNA sequences display distinct semiconductor properties (n-type vs. p-type).