In order to protect water pollution with water-soluble ionic substances, the development of the recovery systems for toxic and/or noble metal ions and inorganic anions (e.g., fluoride) is very important. We have been preparing various kinds of ion exchanger, and studying properties of the resulting resins. So far, we have developed the following ion exchenger.
a) Bifunctional chelating resin containig phosphonic acid group
b) Bifunctional chelaing fiber containg phosphonic acid group
These resins can selectively take up not only various transition metal ions but also some specific inorganic anions.
The interests of our research group involve the bioorganic and -inorganic chemistry related with nucleic acids (DNA, RNA, and nucleotide). In particular, we aim at the development of novel DNA ligands and analytical-reagents and -system for specific DNAs.
Conjugating the two functional molecules, we synthesized several novel DNA ligands the DNA binding property of which were defined by the tools of physical chemistry and biochemistry. The conjugates synthesized so far consist of the DNA binding moiety (some intercalators and oligonucleotides) and the functional moiety such as metal chelator, photosensitizer, and redox-active unit.
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