I really appreciate this kind of experimentations we do in class. I used a small microscope that is intended to phone cameras, it’s wasn’t the easiest to use or the one with high quality but it did the trick regarding it costs about $5 dollars.
It took a while but even with such small pieces of leaf, the microscope was able to show the cells. The closer the lens was to the object, the image was better although sometimes my phone was having issues focusing on the close-ups.
Getting microscopic images for my project would be valuable, especially with the bacterias that will appear on the biosensors. Can’t wait!