Evaluation of adhesion properties and effect of cation-π interaction
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Recently, Adhesion in a water environment is one of the most challenging issues in the medical and dental industries. In nature environments, marine mussels effectively adhere in rough wet conditions. The adhesion system of mussels is known to the formation of complex coacervate resulting from unique structure of catecholic amino acid. In this study, we tried to induce cation-π interaction between modified DOPA derivatives and various type of cations (Mg2+, Ca2+, Fe3+, Va5+). We investigated the characteristics of complex coacervate according to cation types and evaluated the adhesion strength. Cation-π interactions, which occurs between electron-rich π systems such as aromatic group and cations is a non-covalent interaction and have different characteristics depending on the cation type. The complex coacervates between DOPA derivatives and various type of cation showed that adhesion strength is effectively increased.