1. Microencapsulation & Nanomaterials Department, Southwest Research Institute, 6220 Culebra Road, San Antonio, TX 78238, USA
2. Wake Forest Institute for Regenerative Medicine, Medical Center Boulevard Winston-Salem, NC 27157, USA
3. Colonel, Dental Corps Commander, US Army Dental & Trauma Research Detachment, US Army Institute of Surgical Research, 3698 Chambers Pass Suite B, Fort Sam Houston, TX 78234, USA