希土類を含むLangmuir-Blodgett膜開発と味覚センサの感応膜への応用

抄録

The LB film is a thin film of regularly accumulated nano-thickness using the amphiphilicity of organic molecules. The thin film is optically polarized and has high directivity of molecular arrangement. Here, we introduce the structure of LB film with rare earth ions, basic properties from the light emission, and the possibility as a taste sensor. The structure of LB film has strong molecular film characteristics due to strong Lewis acidity of rare earth ions. On the other hand, the alkyl chain moiety in the ordered backbone functions as a hydrophobic medium and adsorbs organic molecules in aqueous solution. Using this fact, it was found that organic molecules contained in alcoholic beverages were adsorbed and the potential changed. The addition of rare earths increases the sensitivity of the potential response by approximately three times for LB films without rare earths.