Supporting Information S1 Quantum dots as ultrasensitive nanoactuators and sensors of amyloid aggregation in live cells M. Julia Roberti 1,2 , Marcos Morgan 3 , Guillermo Menéndez 1 , Lía I. Pietrasanta 3 , Thomas M. Jovin 2 , and Elizabeth A. Jares-Erijman 1* 1 Departamento de Química Orgánica, Facultad de Ciencias Exactas y Naturales (FCEyN), Universidad de Buenos Aires (UBA), CIHIDECAR, CONICET, 1428 Buenos Aires, Argentina; 2 Laboratory of Cellular Dynamics, Max Planck Institute for Biophysical Chemistry, 37077 Göttingen, Germany; DFG Forschungszentrum CMPB "Molecular Physiology of the Brain", Göttingen, Germany; Laboratorio Max Planck de Dinámica Celular, FCEyN, UBA; 3 Centro de Microscopías Avanzadas, CONICET, FCEyN, UBA. *To whom correspondence should be addressed. E-mail: eli@qo.fcen.uba.ar (E.A.J-E.). Phone: +541145763448. Fax: +541135763346.