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. Author manuscript; available in PMC: 2013 Aug 12.
Published in final edited form as: Analyst. 2011 Jun 7;136(14):2953–2958. doi: 10.1039/c1an15112f

Fig. 4.

Fig. 4

(a) ATR FT-IR absorbance image at 1656 cm−1 (amide I) of NDF stimulated with TGF-β1 for 24 h. MNF transform was applied to reduce noise and better segregate nuclear from cytoplasmic spectra for subsequent analysis. (b) NDF co-cultured with MCF-7 show intracellular stress fibers in ATR FT-IR absorbance image at 1656 cm−1 after application of MNF transform and limiting image reconstruction to bands that show stress fibers for visualization only. Scale bar is 50 μm.