Additional file 1: Figure S1. of AMP-Conjugated Quantum Dots: Low Immunotoxicity Both In Vitro and In Vivo

Intracellular Cd2+ concentrations in macrophage J774A.1 cells incubated with quantum dots (50 nM) for 12 h were measured. Data are presented as means ± s.d. (n = 6). Figure S2. Colloidal stability of AMP-QDs in physiological media. AMP-QDs were incubated for 24 h in 0.01 M PBS (a) or cell culture medium containing 10 % foetal bovine serum, (b) and their size distributions were measured by a dynamic light scattering (DLS) with Zetasizer NanoZS Instrument. The hydrodynamic size of AMP-QDs in 0.01 M PBS (a) and cell culture medium (b) were determined to be 8.49 nm and 8.56 nm, respectively.