bio.display

The experiments done from yesterday to today show a clear result that the size of arabinose drops really matter, and that the correspondence between the brightness of the result and the size of the drop is not linear. It seems that a drop size of at least 0.02 is preferable (say a pushout of 0.03 and a suckback of 0.01), sometimes 0.015 works as well. It’s also visible that we can’t get better than a distance of 5mm between the drops, but 6mm seem to work out best. Shorter distances get along better with smaller drop sizes, probably because the liquid flows together. Bigger drop sizes also help in the process as they stick to the agar gel easier.

The following prints resulted in visible output (spacing / drop size / suckback):

• 5 / 0.03 / 0.01
• 5 / 0.03 / 0.015
• 5 / 0.025 / 0.005
• 5 / 0.02 / 0.005
• 6 / 0.025 / 0.005
• 6 / 0.02 / 0.005
• 7 / 0.02 / 0.005 (barely visible)

Whereas the following prints resulted in practically invisible results (spacing / drop size / suckback):

• 5 / 0.03 / 0.02
• 6 / 0.02 / 0.01
• 6 / 0.03 / 0.015
• 6 / 0.03 / 0.02
• 7 / 0.02 / 0.01

The following image shows three prints of spacing 6, with drops sizes below (spacing / drop size / suckback):

• 6 / 0.025 / 0.005
• 6 / 0.02 / 0.005
• 6 / 0.02 / 0.01

The following images shows prints of spacing 5, with drops sizes below (spacing / drop size / suckback):

• 5 / 0.03 / 0.01
• 5 / 0.03 / 0.015
• 5 / 0.025 / 0.005

The following image shows three different prints of different sizes (7, 6 and 5) and similar drop sizes, see below (spacing / drop size / suckback):

• 7 / 0.02 / 0.005
• 6 / 0.02 / 0.005
• 5 / 0.025 / 0.005