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DNA solitons with realistic parameter values

1989; American Institute of Physics; Volume: 40; Issue: 10 Linguagem: Inglês

10.1103/physreva.40.6134

0556-2791

L. L. Van Zandt,

Acoustic Wave Resonator Technologies

Self-cohering, localized excitations of a DNA polymer chain are predicted using elastic parameter values that correspond well with established data. This ``soliton'' is constructed out of hydrogen-bond-stretching optical phonons and transverse-acoustic shearing waves. Numerical integration of model equations of motion shows a clear transformation from dispersive packets at low amplitude to solitonlike states at higher amplitude. Minimum excitation energies are estimated in the range of 0.1 eV.