Figure 2From: Bioactive magnetic near Infra-Red fluorescent core-shell iron oxide/human serum albumin nanoparticles for controlled release of growth factors for augmentation of human mesenchymal stem cell growth and differentiationExcitation and emission of Free Cy7 and Cy7-IO/HSA NPs. The excitation and emission spectrum of Cy7-IO/HSA NPs and the free Cy7 in PBS at a final concentration of 250 ng/ml were determined using spectrofluorometer.Back to article page