a
Fischell Department of Bioengineering, University of Maryland, College Park, USA
b
Department of Materials Science and Engineering, University of Maryland, College Park, USA
E-mail: jseog@umd.edu
;
Fax: +1 301-314-2029
;
Tel: +1 301-405-1885
c
Department of Chemistry and Biochemistry, University of Maryland, College Park, USA
d
Department of Pharmaceutics and Pharmaceutical Chemistry, University of Utah, USA
e
Department of Bioengineering and Utah Center for Nanomedicine, University of Utah, USA
f
Graduate School of Nanoscience and Technology (WCU), Korea Advanced Institute of Science and Technology, Daejeon, Korea
g
Department of Mechanical Engineering, University of Maryland, College Park, USA