1. Biomaterials Research Group, Department of Materials Engineering; Isfahan University of Technology; Isfahan 84156-83111 Iran
2. Torabinejad Dental Research Center, School of Dentistry; Isfahan University of Medical Sciences; Isfahan 81746-73461 Iran
3. School of Materials Science and Engineering, Helmerich Advanced Technology Research Center; Oklahoma State University; Tulsa OK 74106 USA
4. School of Electrical and Computer Engineering, Helmerich Advanced Technology Research Center; Oklahoma State University; Tulsa OK 74106 USA
5. Dental Materials Research Center; Isfahan University of Medical Sciences; Isfahan Iran
6. School of Chemical Engineering; Oklahoma State University; Stillwater OK 74078 USA