1. Department of Polymer Science & EngineeringChosun UniversityGwangju501‐759 Republic of Korea
2. Molecular Modeling and Biopharmaceutical Center, Center of Pharmaceutical Research and Innovation, and Department of Pharmaceutical Sciences, College of PharmacyUniversity of KentuckyLexington Kentucky
3. Department of MicrobiologyChangwon National UniversityChangwon Kyongnam641‐773 Republic of Korea
4. Department of OtolaryngologyChonnam National University Medical SchoolGwangju501‐757 Republic of Korea