Figure 2From: Folate Functionalized Boron Nitride Nanotubes and their Selective Uptake by Glioblastoma Multiforme Cells: Implications for their Use as Boron Carriers in Clinical Boron Neutron Capture TherapyUV–Vis spectra of folic acid, PLL-BNNTs, a mixture of folic acid and PLL-BNNTs, and F-PLL-BNNTsBack to article page