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. 2020 Feb 16;12(2):457. doi: 10.3390/cancers12020457

Figure 1.

Figure 1

Cold atmospheric soft jet plasma (CAP) and gold quantum dots (AuQDs) characterization. (A) Schematic, (B,C) current-voltage and temperature profile, and (D) optical emission spectroscopy (OES) spectrum of the soft plasma jet. (E) X-ray diffraction pattern (XRD) of prepared AuQDs, deposited on silicon wafer (Si 100), (F) low-resolution transmission electron microscopy (TEM) analysis of GODs (~5 nm size), and (G) high-resolution (HR-TEM) images of AuQDs, which depict the difference between two lattice fringes and crystalline character of prepared products, which are ~0.231 nm.