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. Author manuscript; available in PMC: 2016 May 19.
Published in final edited form as: Anal Chem. 2015 May 1;87(10):5437–5443. doi: 10.1021/acs.analchem.5b00903

Figure 2.

Figure 2

Preparation of Prussian blue nanoparticles (PBNPs) using a 3D-printed Y-shaped mixing device. Images of (A) a 3D-printed ABS fitting, (B) side view of the device, (C and D) bottom views of the device (C) before and (D) after mixing 5 mM iron(II) chloride and 5 mM potassium ferricyanide solutions to form citrate-PBNPs, and (E) top view of citrate-PBNP-filled device. AFM images of (F) citrate-PBNPs and (G) PDDA-PBNPs-CS deposited on mica. (H) Dynamic light scattering results for hydrodynamic radii of citrate-PBNPs and PDDA-PBNPs-CS formed using flow rates of 2000 µL min−1.