Here’s the first foldscope image I’ve ever taken. It is a prepared slide of an onion root tip, stained with acetocarmine to visualise the chromosomes.
The onion root tip is a great sample to observe the stages of mitosis, however, most of the division is occurring a bit farther back along the root than where I took this image. The root cap itself is the location of cells that can sense gravity, and so when I took this image I was instead focussing on the cells involved in graviperception.
Images taken November 4, 2017 at University of Wisconsin -Madison, WID Foldscope Teacher Workshop