Adsorption of Deoxyribonucleic Acid on Nanocrystalline Titanium and Cerium Dioxide Surfaces

Autor:	N. N. Vlasova, O. V. Markitan
Rok vydání:	2021
Předmět:	chemistry.chemical_classification Aqueous solution Hydrogen bond Chemistry Inorganic chemistry Oxide chemistry.chemical_element Surfaces and Interfaces Cerium chemistry.chemical_compound Colloid and Surface Chemistry Adsorption Nucleic acid Nucleotide Physical and Theoretical Chemistry Titanium
Zdroj:	Colloid Journal. 83:461-467
ISSN:	1608-3067 1061-933X
DOI:	10.1134/s1061933x21040050
Popis:	Adsorption of deoxyribonucleic acid on the surfaces of nanosized titanium and cerium dioxides from aqueous solutions has been studied as depending on pH and adsorbate concentration. The comparison of the data on the adsorption of DNA, an inorganic phosphate, and nucleotides that compose nucleic acid molecules, as well as the states of the surface functional groups of the metal oxides, has revealed that the double-stranded DNA is mainly adsorbed with the participation of the phosphate backbone of its molecule. The heterocyclic bases of nucleotides are not involved in the adsorption process. The approach of DNA to the oxide surface under the action of electrostatic attraction promotes other types of interactions, e.g., dispersion interaction and hydrogen bonding.
Databáze:	OpenAIRE
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