Drawing onion cells in real-time!

I’ve been re-viewing all the permanent slides I’d made earlier, and experimenting with different viewing techniques. Recently we took out my first slide, an onion peel mount (https://microcosmos.foldscope.com/?p=197449), and tried Mr Manu’s “camera lucida” mode (https://microcosmos.foldscope.com/?p=16684). Using the simplest of materials we found on my table, we set up the Foldscope as seen in the…


My Exploration this far Pollen Grain ONION SHELL

Outer and inner onion epidermises – stained at home!

The first time I sampled an onion peel was a bit different from the introductory experiment in a biology textbook (I observed the outer epidermis, without staining it). Till now I haven’t been able to get the same “3D” effect again (https://microcosmos.foldscope.com/?p=197449), but today’s observations were equally beautiful! This time, I observed and compared the…

Onion Cells

An onion peel is typically one of the first samples viewed when introduced to school-level microscopy. Here are images of an onion skin under my Foldscope. The cells are seen very distinctly and have a three-dimensional appearance. CookerBird

Onion cell

It was my first attempt to use foldscope. It was very surprising to watch cells, cell wall, cell membrane and nucleus of an Onion peel with such clarity in a simple microscopic tool.

Onion cells under foldscope-#Indiafoldscopephase 1

Thin epidermis membrane from the layers of onion was pulled out and mounted on glass slide using a drop of water and cover slip, observed under foldscope. A large rectangular interlocked cells with distinct cell walls was observed. Fig. Onion cells without staining under foldscope Safranin was used to stain the cells. Fig. Onion cells…