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. 2023 Apr 28;13:6954. doi: 10.1038/s41598-023-33200-4

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(a) Room temperature Raman spectra of a series (varying the % ages of KMNO₄) of controlled oxidized GO nanosheets samples (b) Variation in FWHM of D and G bands and I_D/I_G ratio of controlled oxidized GO nanosheets samples versus concentration of KMNO₄.