Figure 2From: Facile synthesis of folate-conjugated magnetic/fluorescent bifunctional microspheresThe FI-IR spectra of (a) Fe 3 O 4 , (b) CS-coated Fe 3 O 4 , (c) CS, (d) CdTe-CS-coated Fe 3 O 4 , (e) Fe 3 O 4 -CdTe@SiO 2 -NH 2 , (f), Fe 3 O 4 -CdTe@SiO 2 -FA, and (g) FA.Back to article page