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An Investigation of the Adsorption Characteristics of 5'ATP and 5'AMP onto the Surface of Caso4 x 2H2OA model has been proposed in which solid surfaces can act as a site for cataletic activity of condensation reactions for certain biomolecules. From this model, the adsorption characteristics of 5'ATP and 5'AMP onto the surface of CaSO4.2H2O was chosen for study. It has been proven that 5'ATP and 5'AMP do adsorb onto the surface of CaSO4. Studies were then made to determine the dependence of absorption versus time, concentration, ionic strength and pH. It was found that the adsorption of the nucleotides is highly pH dependent, primarily determined by the phosphate acid groups of the nucleic acid molecule. From this investigation, the data obtained is discussed in relation to the model for the prebiotic earth.
Document ID
19860019522
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Calderon, J. (Santa Clara Univ. CA, United States)
Sweeney, M. A. (Santa Clara Univ. CA, United States)
Date Acquired
September 5, 2013
Publication Date
January 1, 1984
Subject Category
Composite Materials
Report/Patent Number
NASA-CR-177005
NAS 1.26:177005
Accession Number
86N28994
Funding Number(s)
CONTRACT_GRANT: NCC2-170
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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