日本ゼオライト学会　刊行物 Publication of Japan Zeolite Association

Increasing attention has been focused on the intercalation of organic compounds into interlayer of layered double hydroxides (LDHs) from viewpoints of separation and recover of organic substances, removal of harmful substances, retention of useful components, synthesis of porous materials etc. Recently, the intercalation of the biomolecules in living systems such as amino acids, polypeptides, sugars and nucleic acids into LDHs was also attempted from viewpoint of earth chemistry in which LDHs were regarded as anionic clays. In this article, the recent studies on the intercalation of the biomolecules mentioned above into LDHs are summarized as well as our results of the quantitative researches on the intercalation of amino acids and sugars are also summarized. As the results, not only anion but zwitterion of amino acids and non-ionic molecule of sugars were intercalated into interlayer of various LDHs with indicating the selectivity by the kind of side chain group in amino acids and by the number and configuration of hydroxide group in sugars.