Human Blood sample through foldscope

Today’s i observed my blood sample under d foldscope without staining. I identify all cells . Blood Sample contains RBC, WBC, (neutrophiles, monocyte, lymphocyte, eosinophiles, basophiles ) Platelets. I write here some percentage&functions of cells. Cells Function Neutrophils (60-70%)== Phagocytosis(engulf bacteria)acute bacterial infections Eosinophils (1-4%)==Important in allergic reaction,kill parasites Basophil(0.5-1%)==Important in allergic reactions & release…

Fun with Foldscopes!

Today in our ecology class lab at Princeton we used Foldscopes to investigate the world around us. I stuck the slide sticker to my skin in order to collect material from my skin. It was initially challenging to find an image, but with some patience and tinkering I was able to get a great picture…

Polytene Chromosome from salivary glands of Chironomus Larvae

Polytene chromosomes are giant chromosomes common to many dipteran (two-winged) flies. They begin as normal chromosomes, but through repeated rounds of DNA replication without any cell division (called endoreplication), they become large, banded chromosomes.  Polytene chromosomes are usually found in the larvae, where it is believed these many-replicated chromosomes allow for much faster larval growth than if the cells remained…

Yeast Cells

Yeast is a living organism. It can be used to make bread and alcoholic drinks such as beer and wine. Different species of yeast may cause infections such as thrush. Yeast consists of single cells. They are smaller than animal and plant cells, but slightly larger than bacteria.

Hair follicle

The base of the hair follicle is called the bulb. The hair bulb contains the actual hair producing part (tissue) known as the Dermal Papilla. The Dermal Papillae connects with the blood vessels to draw the nutrients for hair growth.


Spirogyra is commonly found in clean water and it produces food through the process of photosynthesis. Usually, spirogyra algae are seen as floating slimy masses, during summer. They are often referred to as ‘scum’. Spirogyra is a genus of green algae that belong to the order Zygnematales. These free-flowing, filamentous algae are characterized by ribbon-shaped chloroplasts…

Human Cheek Cell

            Human cheek cells have a lining of flat and polygonal cells with irregular boundaries, which are arranged edge to edge. As a result, they seem to form a delicate sheet or lining of cells. There is a presence of a small, densely staining structure in the cell nuclei of…

Cheek cells under Foldscope

Cheek cells are eukaryotic cells (cells that contain a nucleus and other organelles within enclosed in a membrane) that are easily shed from the mouth lining. It is therefore easy to obtain them for observation.

Onion peal cells

As in all plant cells, the cell of an onion peel consists of a cell wall, cell membrane, cytoplasm and nucleus.

Stomata on lower epidermis of leaf.

It was a great experience watching slide of epidemic cells and stomatas with the help of a foldscope . Foldscope works really well as a portable microscope and it also does not require any adjustment. According to me Foldscope is a great device.

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.


My first attempt of using Foldscope and I was totally amazed. After using Foldscope once I have now nurtured many ideas, and now I am looking forward to feed my curiosity.

Should I eat this strawberry? 

I hate when food goes to waste. Just as a philosophical point; it seems so much effort was made to bring it to my door; and for one reason or another – my family can not consume it. So when I see my strawberry with a small white patch growing, it’s worth asking a question…

Drosophila Melanogaster

Drosophila Melanogaster Wing, wild type Drosophila Melanogaster head, eye, proboscis wild type Drosophila Melanogaster Wing wild type

Updates on SAI KIDS Foldscope Club Activities

Since our establishment last July 2016, members of the SAI KIDS Foldscope Club in the Philippines have been actively conducting a series of experiments using their Foldscopes. Below are some briefs of the experiments we have done so far: August: Learning and Comparing Everyday Commodities One of the main goals of the club is for the learners to…

Onion peel

This is how ONION PEEL looks under foldscope.  

A simple microfluidic device and time lapse imaging of embryonic stem cells

One thing that is overlooked in our general understanding of cell biology is how dynamic everything is. During school, you are taught that cells are a tiny round blobs full of even tinier factories performing various pre-defined functions. These cells are each of a certain type and shape and combine to form greater structures that…

Difference Between Cells of a Rose Petal and Cells of a Rose Leaf

Purpose of the experiment: Determine if a rose’s leaf and petal share the same cells. Problem of the experiment: Does a rose leaf and petal share the same shape of cells? Hypothesis: If the Foldscope is used to observe a rose’s leaf and petal, then we will be able to determine whether they share the…


Following are the images of stomata present on lower epidermis of a money plant. I have taken these images from  Moto G2(8mp camera) and with 140x foldscope lens. I was excited to see how clearly those stomata are seen. In the above photo, there were actually more than one layers of tissues. That is why…

Are dandelion petals more than one cell? (BioE80 Spr2015)

We were looking at dandelions near the mainquad and wanted to know whether or not the white dandelion petals were made up of one cell or more than that.  To find the answer to this question we took a few of the white dandelion petals off of a plant and prepared a slide for the…

Looking closer to a leaf

              plant cuticles are protective, hydrophobic, waxy coverings produced by the epidermal cells of leaves, young shoots and all other aerial plant organs. Cuticles minimize water loss and effectively reduce pathogen entry due to their waxy secretion.