* Corresponding authors

^a Department of Materials Science, University of Washington, Seattle, Washington, USA
E-mail: kannanmk@uw.edu

^b Department of Radiology, Molecular Imaging Program at Stanford, Stanford School of Medicine, Stanford, California, USA

^c Department of Chemistry, University of Washington, Seattle, Washington, USA

^d Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, Canada

^e Department of Immunology, Herbert Wertheim College of Medicine, Florida International University, Miami, USA

^f Departments of Bioengineering & Materials Science & Engineering, Stanford University, Stanford, California, USA

^g Department of Comparative Medicine, University of Washington School of Medicine, Seattle, Washington, USA