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Ballistic charge transport through bio-molecules in a dissipative environment
Daria Brisker-Klaiman1, Uri Peskin
1Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Haifa 32000, Israel.
Physical Chemistry Chemical Physics : PCCP
|July 25, 2012
Summary
This study investigates efficient charge transport in biomolecular systems. We outline conditions to measure coherent transport in DNA molecular junctions despite environmental interference.
Area of Science:
- Biophysics
- Molecular Biology
- Quantum Chemistry
Background:
- Recent experiments highlight electron-energy transfer in biomolecules, renewing interest in coherent charge transport.
- Dissipative environments typically hinder phase-conserving processes in biological systems.
Purpose of the Study:
- To determine if and under what conditions, efficient coherent charge transport can occur in dissipative biomolecular systems.
- To formulate measurable conditions for observing coherent ballistic resonant charge transport in DNA.
Main Methods:
- Theoretical formulation of charge transport dynamics in DNA molecular junctions.
- Analysis of conditions for overcoming environmental dissipation.
- Identification of experimental parameters for measuring coherent current.
Main Results:
- Established theoretical framework for charge transport in DNA.
- Defined specific conditions under which coherent transport is measurable.
- Demonstrated that environmental coupling does not necessarily preclude efficient charge transport.
Conclusions:
- Coherent ballistic resonant charge transport in DNA molecular junctions is potentially measurable.
- The study provides a theoretical basis for future experiments on quantum effects in DNA.
- Understanding these transport mechanisms is crucial for molecular electronics and bio-inspired technologies.
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