Functionalization of Graphene Oxide Nanosheets Can Reduce Their Cytotoxicity to Dental Pulp Stem Cells

<div>FT-IR spectra of graphite, nGO, nGO-CS, and nGO-COOH for the wavelength range of 600-4000 cm<sup>−1</sup>. The peak at 1700 cm<sup>-1</sup> is the characteristic peak for nGO and nGO-COOH; the peak for nGO-COOH is sharper than that of nGO.</div>

Journal of Nanomaterials

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Figure 3: Functionalization of Graphene Oxide Nanosheets Can Reduce Their Cytotoxicity to Dental Pulp Stem Cells 