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Biomedical subjects

Stephan Roche

Publications and source records attributed to Stephan Roche.

2 recordsLinked to original sources

Long range correlations in DNA: scaling properties and charge transfer efficiency.

We address the relation between long-range correlations and charge transfer efficiency in aperiodic artificial or genomic DNA sequences. Coherent charge transfer through the highest occupied molecular orbital states of the guanine nucleotide is studied using the transmission approach, and the focus is on how the sequence-dependent backscattering profile can be inferred from correlations between base pairs.

Chromosomes, Human, Pair 22↗

Sequence dependent DNA-mediated conduction.

We report on coherent charge transport studies in periodic Poly(dG)-Poly(dC) and aperiodic lambda-phage DNA sequences. The extent and efficiency of charge transfer is discussed as a function of sequence dependent energetics, of temperature dependent base-base couplings, and in relation with experiments.

Bacteriophage lambda↗