分子認識層被覆型磁性ナノ粒子の環境浄化への応用

抄録

Recently, an effective removal of environmental pollutants is very important for risk management in our environment. The adsorbents based on an activated carbon and its related membranes or resins are usually utilized for the removal of pollutants. However, these adsorbents provide non-selective and irreversible adsorption, so that high-frequency replacement of the adsorbents and treatment of the waste materials are required.

To overcome the drawbacks, we previously developed a photocatalyst modified with molecular recognition ability by a molecularly imprinted technique. Thehybrid-photocatalyst allowed the selective adsorption and photodegradation of a target compounds in environmental samples.

In this study, we newly developed a magnetic nanoparticle enabling the selective adsorption of a toxic compound, saxitoxin which is one of shellfish toxins. We optimizedthe preparation procedures and evaluated the selective adsorption ability of the prepared materials. The results suggested that the magnetic nano-particle modified with molecular recognition layer was successfully prepared and the selective adsorption ability in the pseudo environmental water sample was achieved.