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. 2018 Nov 22;13:7859–7872. doi: 10.2147/IJN.S181268

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© 2018 Liu et al. This work is published and licensed by Dove Medical Press Limited

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Characterization of reduced graphene oxide (rGO) sheets. (A) An AFM image of reduced nanographene oxide (nano-rGO). The image is on a 10 nm height scale. (B) A UV-vis-near-infrared (NIR) spectrum of nano-GO-polyethylene glycol (PEG) and nano-rGO-PEG solution. (C) Photothermal heating curves of the nano-rGO-PEG and nano-GO-PEG solutions and the deionized water (DIW) exposed to the 808 nm laser at a power density of 2 W/cm². Black curve is 1 mL of solutions with 20 mg/L concentration of nano-rGO-PEG, red curve is nano-GO-PEG and dark blue curve is DIW.