Elastic properties of DNA linked flexible magnetic filaments

Elastic properties of magnetic filaments linked by DNA in solutions of univalent and bivalent salts with different pH values are investigated through their deformation in an external field. A strong dependence of the bending modulus in bivalent salt solution on the pH is shown. Experimental results...

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Published inJournal of physics. Condensed matter Vol. 20; no. 20; pp. 204107 - 204107 (5)
Main Authors Ērglis, K, Zhulenkovs, D, Sharipo, A, Cēbers, A
Format Journal Article Conference Proceeding
LanguageEnglish
Published Bristol IOP Publishing 21.05.2008
Institute of Physics
Subjects
Analytical, structural and metabolic biochemistry
Biological and medical sciences
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Condensed matter: structure, mechanical and thermal properties
Dna, deoxyribonucleoproteins
Elasticity, elastic constants
Exact sciences and technology
Fundamental and applied biological sciences. Psychology
Magnetic properties and materials
Mechanical and acoustical properties of condensed matter
Mechanical properties of solids
Nucleic acids
Physics
Elasticity
Bending
External fields
Wires
DNA
Magnetic properties
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Summary:Elastic properties of magnetic filaments linked by DNA in solutions of univalent and bivalent salts with different pH values are investigated through their deformation in an external field. A strong dependence of the bending modulus in bivalent salt solution on the pH is shown. Experimental results are interpreted on the basis of the magnetic elastica.
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ISSN:0953-8984
1361-648X
DOI:10.1088/0953-8984/20/20/204107