3. RESULTS AND DISCUSSION
The main purpose of our research was to create a uniform, reproducible
sensitive layer based on crystalline titania nanoparticles capable to
react qualitatively with hydrogen peroxide. We have achieved this goal
by creating of the sol-gel ink with optimal rheology and inkjet printing
using Dimatix material printer DMP 2831.
Using a low temperature sol-gel synthesis we produced a colloidal
solution of titanium dioxide and created resulting ink with average
particle size of 12 nm (Figure 1a).