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. 2019 Apr 17;9(22):12269–12275. doi: 10.1039/c9ra01396b

Intensities (a.u.) of some Raman bands of IL-6 on Si substrates.

Concentration of IL-6 solution I 760 I 1049 I 1403 I 1465 I 2943
1 μg mL−1 261.34 193.94 59.98 195.27 647.74
1 ng mL−1 80.53 66.76 22.83 63.99 287.63
1 pg mL−1 7.21 4.62 1.15 5.25 12.7