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Ink printing results using the EHD inkjet printing and the particle density obtained using an optical microscope (magnification: 1200×): (a) 100:100, (b) 100:150, (c) 100:200, (d) 150:100, (e) 150:150, (f) 150:200, (g) 200:100, (h) 200:150, and (i) 200:200 (nanoceramics:silver nanoparticles).
