Cytotoxicity Comparison of the Nanoparticles Deposited on Latex Rubber Bands between the Original and Stretched State

Figure 4

FT-IR spectra of the latex rubber band extracts. The DMEM (control) and the extracts of the P, U, and E groups for the “L” and stretched “3L” samples. The results of the FT-IR indicated an increased IR-transmittance at 1020 (C–O stretch), 2850, and (C–H stretch) compared with the DMEM culture media (control group), which indicated the presence of opaque minerals in the extracts, such as native metal, zinc, or a metallic oxide mineral. Representative images were shown after the experiments were performed in triplicate.