© 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. This is the accepted version of the following article: Controllable Nanocarving of Anatase TiO2 Single Crystals with Reactive {001} Facets, Chemistry - A European Journal, Vol. 17(24), 2011, pp. 6615-6619, which has been published in final form at http://dx.doi.org/10.1002/chem.201100134.