1. Department of ChemistryCenter for Cell-Encapsulation Research, KAIST Daejeon 34141 Korea
2. Department of Science EducationEwha Womans University Seoul 03760 Korea
3. Department of Chemistry LAQV–REQUIMTEUniversity of Aveiro Aveiro 3810-193 Portugal
4. Department of Chemistry CICECO – Aveiro Institute of MaterialsUniversity of Aveiro Aveiro 3810-193 Portugal