Abstract
This chapter outlines the interactions of clay minerals with nucleic acids. Adsorption of nucleic acids to clay minerals is effected through electrostatic interactions, cation bridging and ligand exchange. The latter bonding mode is important with kaolinite and allophane. Adsorption declines as solution pH increases from acid to alkaline but is enhanced in the presence of neutral electrolytes and polyvalent cations. Nucleic acids can intercalate into montmorillonite at pH < 6. Adsorption also leads to a change in molecular conformation. Clay-associated DNA may be amplified through the polymerase chain reaction and is capable of transforming competent cells. Montmorillonite can catalyse the formation of RNA from its activated monomers.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
