Microscopy Notes | Microbe Notes

How these 26 things look like under the microscope (with diagrams)

July 26, 2020 by Anupama Sapkota

Note: Each image source are given below in this post of respective subheadings. 1. Amoeba under the microscope Amoeba is a unicellular organism in the Kingdom Protozoa. It is a eukaryote and thus has membrane-bound cell organelles and protein-bound genetic material with a nuclear membrane. Amoeba moves with their pseudopodia, which are a specialized form of the plasma membrane that …

Brightfield Microscope (Compound Light Microscope)

May 15, 2020 by Faith Mokobi

Brightfield Microscope Definition Brightfield Microscope is also known as the Compound Light Microscope. It is an optical microscope that uses light rays to produce a dark image against a bright background. It is the standard microscope that is used in Biology, Cellular Biology, and Microbiological Laboratory studies. This microscope is used to view fixed and live specimens, that have been …

Dissecting microscope (Stereo or stereoscopic microscope)

April 30, 2020 by Faith Mokobi

Dissecting microscope (Stereo microscope) These are also known as stereoscopic microscopes. This is a type of digital optical microscope designed with a low magnification power (5x-250x), by use of light reflected from the surface of the specimen, and not the light reflected the specimen. Its primary role is for dissection of specimens and viewing and qualitatively analyzing the dissected samples. …

Transmission Electron Microscope (TEM)

April 19, 2020 by Faith Mokobi

Transmission Electron Microscope (TEM) definition This is a powerful electron microscope that uses a beam of electrons to focus on a specimen producing a highly magnified and detailed image of the specimen. The magnification power is over 2 million times better than that of the light microscope, producing the image of the specimen which enables easy characterization of the image …

Pocket Microscope

April 14, 2020 by Faith Mokobi

Pocket Microscope Definition This is a microscope that has a special design that is small and portable, hence the name ‘pocket’. They are pocket-size but some are a bit larger. Their size is too small to hold a mirror to place the image in its rightful position. However, they have a small stage where one can put an object to …

Atomic Force Microscope (AFM)

April 9, 2020March 30, 2020 by Faith Mokobi

Definition The atomic force microscope (AFM) is a type of scanning probe microscope whose primary roles include measuring properties such as magnetism, height, friction. The resolution is measured in a nanometer, which is much more accurate and effective than the optical diffraction limit. It uses a probe for measuring and collection of data involves touching the surface that has the …

USB Microscope- definition, principle, parts, examples, uses

March 30, 2020March 26, 2020 by Faith Mokobi

USB Microscope Definition This is a type of digital Microscope which is connected to a computer through a USB port. It works on low power. They have installed webcam with a high-powered macro lens. they also have an inbuilt LED light constructed near the lens. The working principle of the USB Microscope As a digital microscope, this microscope lacks eyepiece …

Digital Microscope

March 10, 2020 by Faith Mokobi

Introduction and history of a digital microscopes A digital microscope is a modern microscope that lacks an eyepiece, an immense difference from the traditional optical microscope. They have a digital camera which is the detector and the image output device. The display of the image is done on a computer screen or monitor, defining the microscope’s digital scope. This microscope’s …

Confocal Microscope

March 9, 2020 by Faith Mokobi

Introduction and History of the Confocal Microscope The concept of confocal microscopy was initially developed by Marvin Minsky in the 1950s, at Harvard University with an aim of viewing the neural network without staining the tissues but it did not bear fruit due to lack of enough light source and a computerized system to store the large data. The work …

Inverted Microscope

March 9, 2020 by Faith Mokobi

Introduction and History of the Inverted Microscope Invented in 1850 by a faculty member of Medical College of Louisiana, named J. Lawrence Smith, this microscope just like it sounds is a light microscope which has its components placed in an inverted order, this means, light source and condenser lens are placed above the specimen stage, pointing down, while the objectives …