Average Raman spectra of control and exposed PBLM cells to EMFs at 1.8 GHz.

<p>Raman spectra of control (continuous black line) and exposed (continuous red line) PBLM cells which were extracted from whole blood samples. The irradiated PBLM cells were exposed to the electric field strength of 200 V/m of microwave at 1.8 GHz inside a reverberation chamber for 1 (a), 5 (b), 12 (c) and 20 (d) h. The labeled Raman features are related to DNA (at 785, 1092 and 1578 cm^-1) and protein (at 1003 and 1615 cm^-1) content (see text). Each spectra is the average from 20 different cells under each condition and are representative of 3–4 independent experiments (i.e. biological replicates corresponding to samples from different donors for each condition). On the right hand side of each Raman spectrum is shown the corresponding comparison between mean values of the I₇₈₅/I₁₀₀₃ (dots), I₁₀₉₂/I₁₀₀₃ (squares) and I₁₅₇₈/I₁₆₁₅ (triangles) intensity ratios of Raman peaks of control and 1 (e), 5 (f), 12 (g) and 20 (h) h EMFs exposed cells. The values are means ± SEM of 3–4 independent experiments (i.e. biological replicates corresponding to samples from different donors for each condition).