The selective transduction of molecular recognition events into physical or chemical signals is a key concept for the design of novel supramolecular sensors. In this study, we have designed two types of supramolecular sensors for ion and molecule recognition in water. Firstly, we have designed amphiphillic azoprobes with a crown ether unit for alkali metal ion recognition, and phenilboronic acid moiety for sugar recognition. Guest-induced changes in aggregate states were successfully utilized for the supramolecular sensing systems. Similarly, the anionic phenilboronic acid probes were self-assembled on the surface of various generations of polyamidoamine dendrimers for specific sugar recognition in water. Secondly, the inclusion function of cyclodextrins (CDs) was used for the design of supramolecular sensors. Using varios combinations of boronic acid fluorescent probes and azoprobes with CDs, the unique sugar recognition functions were performed by means of CD complexes, chemically modified CD complexes, and CD gel complexes based on their synergistic functions. To realize a novel supramolecular chirality, the twisted structure of ditopic azoprobes inside the γ-CD was successfully controlled by means of multi-point recognition of guest ions in water.

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 In this study, waste green tuff cake is converted into zeolitic adsorbent with the ability to support silver ion under hydrothermal conditions with regard to its application for bactericide. Waste green tuff cake is mainly composed of SiO₂ and Al₂O₃ in the form of silicate and aluminosilicate minerals, such as quartz, anorthite, muscovite and clinochlore. The cake is treated with 0-4 M NaOH solution at 80, 120 and 160℃ for 24 h, and zeolitic material, including analcime, was synthesized due to the dissolution of quartz in the raw cake. The product with zeolitic phase, analcime, indicates high silver adsorption ability.

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