1. a Biomimetic Materials and Tissue Engineering Laboratories, Department of Chemical Engineering, Swearingen Engineering Center, Rm 2C11, University of South Carolina, Columbia, SC 29208, USA
2. b Biomimetic Materials and Tissue Engineering Laboratories, Department of Chemical Engineering, Swearingen Engineering Center, Rm 2C11, University of South Carolina, Columbia, SC 29208, USA
3. c Biomimetic Materials and Tissue Engineering Laboratories, Department of Chemical Engineering, Swearingen Engineering Center, Rm 2C11, University of South Carolina, Columbia, SC 29208, USA
4. d Biomimetic Materials and Tissue Engineering Laboratories, Department of Chemical Engineering, Swearingen Engineering Center, Rm 2C11, University of South Carolina, Columbia, SC 29208, USA