Supporting Information Reaching Biocompatibility with Nanoclays: Eliminating the Cytotoxicity of Ir(III) Complexes Malte C. Grüner a,†, *, Kassio P.S. Zanoni a,† , Camila F. Borgognoni b,† , Cristiane C. Melo b , Valtencir Zucolotto b , Andrea S.S. de Camargo a, * a Laboratory of Spectroscopy of Functional Materials (LEMAF), São Carlos Institute of Physics, University of São Paulo, Av. Trabalhador Sãocarlense 400, 13566-590, São Carlos, Brazil. b Group of Nanomedicine and Nanotechnology (GNano), São Carlos Institute of Physics, University of São Paulo, Av. Trabalhador Sãocarlense 400, 13566-590, São Carlos, Brazil. Corresponding Authors *E-mail: malte.gruener@gmail.com (M. C. Grüner) *E-mail: andreasc@ifsc.usp.br (A. S. S. de Camargo)