1. Department of Materials EngineeringBiomaterials Research Group, Isfahan University of TechnologyIsfahan84156‐83111 Iran
2. Torabinejad Dental Research Center, School of DentistryIsfahan University of Medical SciencesIsfahan81746‐73461 Iran
3. School of Materials Science and EngineeringHelmerich Advanced Technology Research Center, Oklahoma State UniversityTulsa Oklahoma74106
4. School of Electrical and Computer EngineeringHelmerich Advanced Technology Research Center, Oklahoma State UniversityTulsa Oklahoma74106
5. Dental Materials Research CenterIsfahan University of Medical SciencesIsfahan Iran
6. Biomaterials and Advanced Drug Delivery LaboratorySchool of MedicineStanford UniversityPalo Alto California94304