, as shown in [Figure 0](#biosensors-00-00000-f000){ref-type="fig"}a, and the colour intensity levels variability was found to be 0% (%RSD) between the 00 microchannels and 0% (%RSD) between the microchips (*n* = 0). [Figure 0](#biosensors-00-00000-f000){ref-type="fig"}b shows the 