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. Author manuscript; available in PMC: 2007 Jan 1.
Published in final edited form as: J Cell Biochem. 2007 Jan 1;100(1):43–57. doi: 10.1002/jcb.20977

Fig. 3.

Fig. 3.

Infrared spectroscopic analysis of representative cultures: (a) Typical spectra from the three culture systems at day 21. All spectra were normalized so that the amide I bands were superimposed. The phosphate and amide I bands used for detailed analyses are indicated. b: Mineral:matrix ratios calculated from all spectra obtained as a function of time. Values are mean ±SD for n = 3-7 spectra from different cultures. c: Crystallinity, calculated from the peak intensity ratios of bands at 1,030 and 1,020/cm respectively. Values are mean ±SD for n = 3-7 spectra from different cultures.