Skip to main content
. Author manuscript; available in PMC: 2015 Oct 1.
Published in final edited form as: Biomater Sci. 2014 Jun 27;2(10):1384–1398. doi: 10.1039/C4BM00073K

Figure 4.

Figure 4

Bone extracellular matrix production measurements. (A) The collagen concentration of the demineralized bone matrix was determined from FTIR spectra (650-4000 cm−1) for osteoblasts grown on Ti plates without the PA-coating (Uncoated Ti), PA-coated but without any peptide conjugated (PA-Coated Ti), or PA-coated with QHREDGS, RGDS or DGQESHR (scrambled) peptide conjugated. (B) The elastic (Young's) modulus of Ti plates with or without peptide immobilized and without any cells seeded on them (Without Cells), and of the demineralized bone matrix laid down by the osteoblasts seeded on the various surfaces (With Cells) was determined by AFM. The data presented are the individual measurements with the mean denoted by the black dash. The lines indicate statistical significance (P < 0.05; Kruskal-Wallis one-way ANOVA on ranks and Dunn's post-hoc analysis; n=3-7).