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. Author manuscript; available in PMC: 2010 Oct 1.
Published in final edited form as: Dent Mater. 2009 May 21;25(10):1205–1212. doi: 10.1016/j.dental.2009.04.006

Fig. 7.

Fig. 7

Spatial distribution of amide I/amide III ratios. (a) Micro-Raman image based on the amide I at 1667 to amide III at 1242 peak area ratios. A thin superficial layer ~ 3–4 μm wide shows a higher values for the ratio. (b) A profile for amide I to amide III peak area ratios across the imaged area.