Dounce Homogenizer – Principle, Types, Procedure, Parts, Uses

Dounce Homogenizer - Principle, Types, Procedure, Parts, Uses

Dounce Homogenizer is a specialized laboratory instrument used for gentle mechanical disruption of eukaryotic cells and soft tissues. It is also known as a tissue grinder. It was invented by Alexander Dounce in 1954. It consists of a cylindrical glass mortar or tube made up of borosilicate glass and two glass pestles. The two pestles … Read more

Wave Bioreactor – Principle, Parts, Types, Uses

Wave Bioreactor - Principle, Parts, Types, Uses

Wave Bioreactor is a single-use cultivation system that is used for growing cells in a sterile flexible plastic bag. It is also known as rocking bioreactor. In this bioreactor, the culture medium and cells are placed inside a partially filled disposable bag which is kept on a heated motorized platform. The platform moves back and … Read more

Petri dish – Structure, Types, Uses

Petri dish - Definition, Structure, Types, Uses

Petri dish is a shallow, flat-bottomed, circular laboratory container with a loose fitting lid. It is used to cultivate, isolate and study microorganisms like bacteria, fungi and cells under controlled sterile conditions. It is designed to hold nutrient rich growth media, such as agar. Agar gives a supportive base for microbial and cellular growth. It … Read more

Conical Flask (Erlenmeyer flask) –  Diagram, Definition, Types, Uses

Conical Flask (Erlenmeyer flask) -  Diagram, Definition, Types, Uses

Conical flask or Erlenmeyer flask is a laboratory flask with flat bottom, conical body and narrow neck. It is used for mixing, heating, cooling and storing of liquid chemicals. It was made by German chemist Emil Erlenmeyer in 1860. The wide body and narrow neck helps in swirling of liquid without spilling. The narrow neck … Read more

Laboratory Flask – Types, Procedure, Limitations, Uses

Laboratory Flask - Definition, Types, Uses

Laboratory flask is a specialized vessel or container commonly used as glassware in scientific laboratory. It is generally made up of temperature and chemical resistant borosilicate glass. Sometimes it is also made from different plastics depending on the experimental need. Laboratory flasks are found in different shapes and sizes. Their volume is usually measured in … Read more

Double Beam Balance – Principle, Parts, Procedure, Uses

Double Beam Balance - Principle, Procedure, Purpose, Uses

Double Beam Balance is a mechanical weighing instrument that is used to measure the mass of an object by comparing it with known reference masses. It has two parallel horizontal beams. One beam is coarse beam, which is used for larger weight measurement and another is fine beam, which is used for very small and … Read more

DNA Analyzer – Principle, Parts, Operating, Applications

DNA Analyzer - Principle, Parts, Operating, Applications

DNA Analyzer is a precision scientific instrument that is used to automate the process of genetic analysis. It is also commonly referred to as DNA sequencer. It determines the exact order of four nucleotide bases such as adenine (A), guanine (G), cytosine (C), and thymine (T) present in a DNA sample. Modern DNA analyzer combines … Read more

ELISA Plate Reader (Microplate Reader) – Principle, Parts, Uses

ELISA Plate Reader - Microplate Reader or Assay Reader

What is ELISA? ELISA (Enzyme-Linked Immunosorbent Assay) is a laboratory technique used to detect and quantify antigen or antibody in a given sample. It is an immunological test in which specific antigen-antibody reaction is used for detection. It is commonly used for detecting toxins, viruses, hormones, proteins and other foreign substances in blood, cell lysate, … Read more

Magnetic Stirrer – Principle, Types, Parts, Uses

Magnetic Stirrer - Definition, Principle, Types, Parts, Uses

Magnetic Stirrer is a laboratory device used to mix liquid solutions automatically without direct manual contact. It is also known as magnetic mixer. It works by producing a rotating magnetic field below the top plate of the instrument. The rotating magnetic field is produced either by a motorized spinning magnet or by stationary electromagnets. A … Read more

18 Types of Centrifuges with their Principle and Uses

Types of Centrifuges

Centrifuge is a laboratory device that is used to separate different components of liquid or gas mixture on the basis of their density. It is commonly operated by an electric motor. The sample tubes are placed inside a rotor and the rotor rotates very rapidly around a fixed central axis. This rapid rotation produces centrifugal … Read more