Fig. 6
From: A comprehensive review on the detection of latent fingermarks using carbon dots
Latent fingermarks detection images taken under (a–c) sunlight and (d–f) UV light using g-CD’s@MMT composites as the fluorescent labeling markers on a variety of substances tinfoil (a and d), glass (c and d), and plastic (e and f). g HRTEM image. h XRD patterns of the g-CD’s@MMT composites (black line) and pure MMT (red line). i Optical image and (j) fluorescent image of the g-CD’s@MMT composites in CHCl3. The images of luminescent bulks, which are composed of g-CD’s@MMT composites and epoxy silicone resin, are taken under (k) sunlight and (l) UV light (Thongsai et al. 2017) (Journal of Colloid and Interface Science, 554, 2019, 344–352 with permission from Elsevier)