Chemical methods of sterilization- Gaseous and Liquid

Chemical methods of sterilization

What is Chemical Sterilization? Chemical Sterilization is the process of removal of microorganisms by the use of chemical bactericidal agents. Even if physical methods of sterilization are more appropriate for effective sterilization, it is not always appropriate to use for heat-sensitive materials like plastics, fiber optics, and biological specimens. Under such conditions, chemical either in … Read more Chemical methods of sterilization- Gaseous and Liquid

Physical methods of sterilization- Heat, Filtration, Radiation

Physical methods of sterilization- Heat, Filtration, Radiation

What is Sterilization? Sterilization is the complete removal of microorganisms from an object or surfaces. Sterilization is obtained when microorganisms are subjected to antimicrobial agents for sufficient time and at optimum conditions. Figure: Physical methods of sterilization. Image created using biorender.com Some physical methods associated with sterilization are explained below: Heat Sterilization Heat sterilization is … Read more Physical methods of sterilization- Heat, Filtration, Radiation

Bacterial Transduction- Definition, Principle, Steps, Examples

Bacterial Transduction- Definition, Principle, Steps, Examples

Transduction Definition Transduction is the transfer of bacterial DNA from a donor to a recipient bacterium via a virus particle. The virus particle that infects bacteria is called a bacteriophage or phage, and the phages used for the transfer of DNA are called transfusing phages. Not all phages are transducing phages. The process of transduction … Read more Bacterial Transduction- Definition, Principle, Steps, Examples

Flow Cytometry-Definition, Principle, Parts, Steps, Types, Uses

Flow Cytometry-Definition, Principle, Parts, Steps, Types, Uses

Flow Cytometry Definition Flow cytometry is a standard laser-based technology that is used in the detection and measurement of physical and chemical characteristics of cells or particles in a heterogeneous fluid mixture. The use of flow cytometry has increased over the years as it provides a rapid analysis of multiple characteristics (both qualitative and quantitative) … Read more Flow Cytometry-Definition, Principle, Parts, Steps, Types, Uses

Binary Fission- definition, steps, types, examples (vs mitosis)

Binary fission in prokaryotes

What is binary fission? (Definition) Binary fission is a type of asexual reproduction where a single living cell or an organelle grows twice its size and then splits into two identical daughter cells, where each of these daughter cells has the potential to grow into the size of the original cell or organelle. Binary fission … Read more Binary Fission- definition, steps, types, examples (vs mitosis)

Bacterial Sizes, Shapes and Arrangement with Examples

Bacterial Sizes, Shapes and Arrangement with Examples

Bacteria are a type of biological cell that is prokaryotic and unicellular. Due to the lack of a membrane-bound nucleus, these are simpler than other types of living organisms. Although only some of them can be seen by naked eyes while the rest are microscopic, they display a wide range of shape, size, and structure. … Read more Bacterial Sizes, Shapes and Arrangement with Examples

Opsonization- Definition, Mechanism, Opsonins, Examples

Opsonins

Opsonization definition The term opsonization refers to the capacity of antibodies and complement components (as well as other proteins) to coat dangerous antigens that can then be recognized by antibodies or complement receptors on phagocytic cells. Opsonization is the molecular mechanism whereby molecules, microbes, or apoptotic cells are chemically modified to have stronger interactions with … Read more Opsonization- Definition, Mechanism, Opsonins, Examples

Bacterial Conjugation- Definition, Principle, Process, Examples

Steps or Process of Bacterial Conjugation

Bacterial Conjugation Definition Conjugation is the transfer of a plasmid or other self-transmissible DNA element and sometimes chromosomal DNA from a donor cell to a recipient cell via direct contact usually mediated by a conjugation pilus or sex pilus. Recipients of the DNA transferred by conjugation are called transconjugants. The process of conjugation can transfer … Read more Bacterial Conjugation- Definition, Principle, Process, Examples

Cell Organelles- Structure and Functions with labeled diagram

Cell Organelles- Structure and Functions with diagram

Cell Organelles definition Cell organelle is a specialized entity present inside a particular type of cell that performs a specific function. There are various cell organelles, out if which, some are common in most types of cells like cell membranes, nucleus, and cytoplasm. However, some organelles are specific to one particular type of cell-like plastids … Read more Cell Organelles- Structure and Functions with labeled diagram

Instruments used in Microbiology Lab with Principle and Uses

Instruments used in Microbiology Lab with Principle and Uses

The instruments used in the microbiology labs include a bunch of different kinds of instruments required for a lot of different processes conducted within those laboratories. Figure: Instruments used in Microbiology Lab with Principle and Uses. Image created with biorender.com 1. Analytical Balance An analytical balance is a type of balance that is commonly used … Read more Instruments used in Microbiology Lab with Principle and Uses

Prevention and Control of COVID-19

Prevention and Control of COVID-19 (SARS-CoV-2)

Since there is currently no vaccine to prevent coronavirus disease (COVID-19), the best way to prevent illness is to avoid being exposed to this virus. As the primary mode of transmission is droplet transmission, the preventive measures revolve around the avoiding of the transfer of the droplets. Figure: Prevention and Control of COVID-19 (SARS-CoV-2), Image … Read more Prevention and Control of COVID-19

Types of PCR (Polymerase chain reaction) – definition and uses

Types of PCR (Polymerase chain reaction)- definition and uses

List of Types of PCR Amplified fragment length polymorphism (AFLP) PCR Allele-specific PCR Alu PCR Assembly PCR Asymmetric PCR COLD PCR Colony PCR Conventional PCR Digital PCR (dPCR) Fast-cycling PCR High-fidelity PCR High-Resolution Melt (HRM) PCR Hot-start PCR In situ PCR Intersequence-specific (ISSR) PCR Inverse PCR LATE (linear after the exponential) PCR Ligation-mediated PCR Long-range … Read more Types of PCR (Polymerase chain reaction) – definition and uses