Figure 3
From: A 3D-printed scaffold with MoS2 nanosheets for tumor therapy and tissue regeneration

(a) X-ray diffraction (XRD) patterns of molybdenum disulfide (MoS2) powders, Akermanite (AKT) scaffolds and MoS2-modified akermanite (MS-AKT) scaffolds. (b) XPS spectrum of MoS2 and MS-AKT scaffolds; XPS characteristic spectrum for Mo 3d (c) and S 2p (d) electrons of MoS2 and MS-AKT scaffolds, which demonstrated valence state of +4 and −2 for Mo and S in the newly formed MoS2 layer on the scaffolds.