%0 journal article %@ 1613-6810 %A Schaefer, H., Hess, C., Tobergte, H., Volf, A., Ichilmann, S., Eickmeier, H., Voss, B., Kashaev, N., Nordmann, J., Akram, W., Hartmann-Azanza, B., Steinhart, M. %D 2015 %J Small %N 8 %P 931-935 %R doi:10.1002/smll.201303930 %T Ultrafine Sanding Paper: A Simple Tool for Creating Small Particles %U https://doi.org/10.1002/smll.201303930 8 %X A top-down approach, i.e., creating small particles by mechanical force starting from bulk materials, probably presents the most logical approach to particle size reduction and, therefore, top-down techniques are among the first to achieve small particles. A new solvent-free, amazingly simple approach is reported, suitable to achieve nanoparticles and sub-micro particles.