Impact of surface charge on the motion of light-activated Janus micromotorsTao Huang, Bergoi Ibarlucea, Anja Caspari, Alla Synytska, Gianaurelio Cuniberti, Joost de Graaf and Larysa BarabanEur. Phys. J. E, 44 3 (2021) 39DOI: https://doi.org/10.1140/epje/s10189-021-00008-x