The effect of solvent dynamics on the low frequency collectivemotions of DNA in solution and unoriented films

doi:10.1063/1.2200349

Title: The effect of solvent dynamics on the low frequency collectivemotions of DNA in solution and unoriented films

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Abstract

Infrared spectroscopy is used to probe the dynamics of invitro samples of DNA prepared as solutions and as solid unoriented films.The lowest frequency DNA mode identified in the far-infrared spectra ofthe DNA samples is found to shift in frequency when the solvent influencein the hydration shell is altered. The lowest frequency mode also hascharacteristics that are similar to beta - relaxations identified inother glass forming polymers.

Authors:: Woods, K.N.; Lee, S.A.; Holman, H.-Y.N.; Wiedemann, H.

Publication Date:: Thu Apr 20 00:00:00 EDT 2006

Research Org.:: Ernest Orlando Lawrence Berkeley NationalLaboratory, Berkeley, CA (US)

Sponsoring Org.:: USDOE. Office of Biological and Environmental Research.Medical Science Division, Stanford Linear Accelerator Center

OSTI Identifier:: 891823

Report Number(s):: LBNL-59679
R&D Project: 366173

DOE Contract Number:: DE-AC02-05CH11231

Resource Type:: Journal Article

Resource Relation:: Journal Name: Journal of Chemical Physics; Journal Volume: 124; Related Information: Journal Publication Date: 2006

Country of Publication:: United States

Language:: English

Subject:: 60 APPLIED LIFE SCIENCES; infrared DNA dynamics

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                    Woods, K.N., Lee, S.A., Holman, H.-Y.N., and Wiedemann, H. The effect of solvent dynamics on the low frequency collectivemotions of DNA in solution and unoriented films.  United States: N. p., 2006. 
        Web.  doi:10.1063/1.2200349.

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                    Woods, K.N., Lee, S.A., Holman, H.-Y.N., & Wiedemann, H. The effect of solvent dynamics on the low frequency collectivemotions of DNA in solution and unoriented films.  United States.  doi:10.1063/1.2200349.

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                    Woods, K.N., Lee, S.A., Holman, H.-Y.N., and Wiedemann, H. Thu .  
        "The effect of solvent dynamics on the low frequency collectivemotions of DNA in solution and unoriented films".  United States.  
        doi:10.1063/1.2200349.  https://www.osti.gov/servlets/purl/891823.

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@article{osti_891823,

  title        = {The effect of solvent dynamics on the low frequency collectivemotions of DNA in solution and unoriented films},

  author       = {Woods, K.N. and Lee, S.A. and Holman, H.-Y.N. and Wiedemann, H.},

  abstractNote = {Infrared spectroscopy is used to probe the dynamics of invitro samples of DNA prepared as solutions and as solid unoriented films.The lowest frequency DNA mode identified in the far-infrared spectra ofthe DNA samples is found to shift in frequency when the solvent influencein the hydration shell is altered. The lowest frequency mode also hascharacteristics that are similar to beta - relaxations identified inother glass forming polymers.},

  doi          = {10.1063/1.2200349},

  journal      = {Journal of Chemical Physics},

  number       = ,

  volume       = 124,

  place        = {United States},

  year         = {Thu Apr 20 00:00:00 EDT 2006},

  month        = {Thu Apr 20 00:00:00 EDT 2006}

}

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DOI: 10.1063/1.2200349

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The Effect of Solvent Dynamics on the Low Frequency Collective Motions of DNA in Solution And Unoriented Films

Woods, K.N. ; Lee, S.A. ; /UC, Berkeley /LBL, Berkeley ; ... - Journal of Chemical Physics

No abstract prepared.
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We use a non-Markovian approach to study the decoherence dynamics of a qubit in either a low- or high-frequency bath modeling the qubit environment. This is done for two separate cases: either with measurements or without them. This approach is based on a unitary transformation and does not require the rotating-wave approximation. In the case without measurement, we show that, for low-frequency noise, the bath shifts the qubit energy toward higher energies (blue shift), while the ordinary high-frequency cutoff Ohmic bath shifts the qubit energy toward lower energies (red shift). In order to preserve the coherence of the qubit, wemore »« less
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