General Method to Increase Carboxylic Acid Content on Nanodiamonds oleh Ganesh Shenoy, Jessica Ettedgui, Chandrasekhar Mushti, Jennifer Hong, Kelly Lane, Burchelle Blackman, Hak-Sung Jung, Yasuharu Takagi, Yeonee Seol, Martin Brechbiel, Rolf E. Swenson, Keir C. Neuman