1. Department of Neurosurgical OncologyFirst HospitalJilin University Changchun 130021 China
2. Institute of ChemistryAcademia Sinica Taipei 11529 Taiwan
3. Department of StomatologyMacKay Memorial Hospital Taipei 10491 Taiwan
4. Department of Chemical Engineering and BiotechnologyNational Taipei University of Technology (Taipei Tech) Taipei 10608 Taiwan
5. Department of Electrical EngineeringChang Gung University Taoyuan City 33302 Taiwan
6. Department of DermatologyChang Gung Memorial Hospital Taoyuan City 33333 Taiwan
7. Department of Materials Science and EngineeringNational Taiwan University Taipei Taiwan