Fig. 1From: Efficient and scalable gene delivery method with easily generated cationic carbon dotsA HR-TEM images of the CDs generated after the reaction of citric acid at 200 °C at two magnifications (scale bar 5 nm). B Histogram frequency of DLS measurements of the mean hydrodynamic diameter (nm) found in CD suspensions. C UV/vis and D fluorescence spectra of the CDs generated from citric acidBack to article page