Journal Article

PreJuSER-23329

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Thermal Diffusion of Nucleotides

Wang, Z.FZJ* ; Kriegs, H.FZJ* ; Wiegand, S.FZJ*

2012
Soc. Washington, DC

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Please use a persistent id in citations: doi:10.1021/jp3032644

Abstract: We investigate the thermal diffusion behavior of aqueous solutions of nucleotides using an infrared thermal diffusion forced Rayleigh scattering (IR-TDFRS) setup. In this work we study 5 nucleotides: cyclic nucleotides adenosine and guanosine monophosphate, 5'-adenosine and 5'-cytidine monophosphate, and also adenosine diphosphate in water. The structures of nucleotides vary systematically, which results in different physical properties such as acidity, solubility, hydrophobicity, and melting point. We discuss the connection between the thermal diffusion behavior and the properties of the different nucleotides. Additionally, as in the case of the alkanes and monoscaccharides, we find a correlation between the thermal diffusion coefficient and the ratio of the thermal expansion coefficient and the kinematic viscosity.

Keyword(s): Nucleotides: chemistry (MeSH) ; Thermal Diffusion (MeSH) ; Thermodynamics (MeSH) ; Water: chemistry (MeSH) ; Nucleotides ; Water ; J

Note: We appreciate many fruitful discussions with Dieter Braun and Pablo Blanco. We express our gratitude to Jan Dhont for his generous support. We thank Sabine Willbold for performing the NMR measurements and Doris Vollmer for her help with the micro calorimetry experiments. Financial support due to the Deutsche Forschungsgemeinschaft Grant Wi 1684 is gratefully acknowledged.

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Contributing Institute(s):

1. Weiche Materie (ICS-3)

Research Program(s):

1. BioSoft: Makromolekulare Systeme und biologische Informationsverarbeitung (P45)

Appears in the scientific report 2012

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Database coverage:
; Current Contents - Social and Behavioral Sciences ; JCR ; NCBI Molecular Biology Database ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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