Category: Techniques


Biofilm of bacteria

Safety issues in Microscopy

Safety issues in microscopy are not only relevant to amateur microscopists, but also for teachers who want to conduct basic microbiological and microscopic work in a school laboratory. In this case the organisms are alive and depending on the type of organism, they may pose a possible health hazard. The post addresses some of the safety issues that should be taken into consideration.

projection screen

A Projection Screen for Microscopes

Projection screens are useful if several people want to look at the specimen. The screen is mounted on the trinocular head instead of a camera.

Setting up a Home Laboratory for Microscopy

The home laboratory provides a safe working environment for microscopic investigations.

size calculation

Determining Size in Microscopic Images

Here is an instruction on how to calculate the size of cells using a microscope.

Air bubbles under the microscope

How to prevent Air Bubbles in Wet Mounts

There are several methods how bubbles can be reduced when making slides.

Testing the Hand Microtome

Cutting a carrot with a hand microtome.

Making a wet mount microscope slide

This post explains how to make a wet mount. Video included!

Fixing specimens for making permanent slides

Before specimens can be processed for making permanent slides, they may need to be fixed.

counting chamber, hemocytometer

The hemocytometer (counting chamber)

The hemocytometer (or haemocytometer or counting chamber) is a specimen slide which is used to determine the concentration of cells in a liquid sample. It is frequently used to determine the concentration of blood cells (hence the name “hemo-“) but also the concentration of sperm cells in a sample.

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