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. Author manuscript; available in PMC: 2015 Jun 21.
Published in final edited form as: Analyst. 2014 Apr 24;139(12):3039–3047. doi: 10.1039/c3an02371k

Figure 1.

Figure 1

Experimental procedure. A) Porcine descending aorta cut in 2–3 cm long rings. B) Aorta rings cut open and cut in smaller pieces for enzymatic degradation. C) Custom ATR sampling tip for FTIR-IFOP data collection next to an American quarter dollar coin. D) FTIR-IFOP data collection from an aorta sample.