Fig. 1From: Facile synthesis of Gd/Ru-doped fluorescent carbon dots for fluorescent/MR bimodal imaging and tumor therapy(a) The synthesis route of Gd/Ru-CDs by facile microwave methods in 5Â min; (b) TEM image of Gd/Ru-CDs (insert image represent the size distribution); (c) HRTEM image of Gd/Ru-CDs, Lattice spacing: 0.21Â nm; (d) XRD of CDs and Gd/Ru-CDs; (e) XPS survey of CDs and Gd/Ru-CDs; High-resolution XPS spectra of Gd/Ru-CDs, (f) C1s, (g) N1s, (h) O1s, (i) Ru3p, and (j) Gd4dBack to article page