Additional file 6 of Distinct phenotypes of cancer cells on tissue matrix gel

Additional file 6: Figure S6. NMR spectra of experimental background controls. (A) The spectra of the media from the polymerized TMG-coated culture (blue spectrum), HUMEC on TMG (red), and MM231 on TMG (green) after 1 h of incubation (37 °C, 5% CO2). (B) The spectra of the media from the polymerized Col I-coated culture (blue), HUMEC on Col I (red), and MM231 on Col I (green) after 1 h of incubation (37 °C, 5% CO2). (C) The spectra of the media from the polymerized Matrigel-coated culture (blue), HUMEC on Matrigel (red), and MM231 on Matrigel (green) after 1 h of incubation (37 °C, 5% CO2).