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. 2012 Oct 15;7(10):e47460. doi: 10.1371/journal.pone.0047460

Table 3. Transmission of Near Infrared and Red Light through Various Concentrations of Blood.

Wavelength Media Combinations
Air only Petri dish only Blood Hemolyzed Blood in H2O Non-hemolyzed Blood in Saline Blood in Introfiant
1∶2 1∶5 7% Blood 1∶2 1∶5 7% Blood 1∶2 1∶5 7% Blood
Near Infrared Light, 830 nm (milliwatts/cm2) 30.34 30.16 0.625 11.2 18.96 25.76 1.192 4.86 12.44 9.352 14.74 22.54
Red Light, 633 nm (milliwatts/cm2) 59.40 58.32 0.0363 7.27 33.85 56.50 0.122 3.88 30.46 0.218 0.666 8.686