Jiang, X. E., Dausend, J., Hafner, M., Musyanovych, A., Röcker, C., Landfester, K., et al. (2010). Specific Effects of Surface Amines on Polystyrene Nanoparticles in their Interactions with Mesenchymal Stem Cells. Biomacromolecules, 11(3), 748-753.