Accumulation and removal of heavy metal ions by insolubilized-DNA and its interaction

DNA was immobilized onto a porous glass bead by a treatment with UV irradiation. The immobilized DNA was insoluble in water and used for accumulation of heavy metal ion. When DNA-immobilized glass bead was added into aqueous solution containing heavy metal ions, such as Hg2+, Cd2+, Pb2+, Zn2+, Cu2+...

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Published inNucleic acids symposium series (1979) no. 44; pp. 221 - 222
Main Authors Yamada, M, Kato, K, Nomizu, M, Sakairi, N, Ohkawa, K, Yamamoto, H, Nishi, N
Format Journal Article
LanguageEnglish
Published England 2000
Subjects
Animals
Binding Sites
DNA - metabolism
DNA - radiation effects
Glass
In Vitro Techniques
Metals, Heavy - isolation & purification
Metals, Heavy - metabolism
Salmon
Solubility
Ultraviolet Rays
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Summary:DNA was immobilized onto a porous glass bead by a treatment with UV irradiation. The immobilized DNA was insoluble in water and used for accumulation of heavy metal ion. When DNA-immobilized glass bead was added into aqueous solution containing heavy metal ions, such as Hg2+, Cd2+, Pb2+, Zn2+, Cu2+ and Fe3+, the concentration of these metal ions in the solution was decreased. However, the concentration of Mg2+ in the solution was not affected by the addition of the DNA-immobilized glass bead. These results suggested that UV-irradiated DNA selectively accumulated heavy metal ions.
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ISSN:0261-3166