Microscope is an instrument that is used in science laboratories to visualize very minute objects, such as cells and microorganisms. It gives a contrasting image that is magnified, so the structures can be observed. The term microscope is derived from Greek words “mikrós” meaning “small” and “skópéō” meaning “look at”. Microscopes are made up of … Read more
Electron microscope is a high power microscope that uses a beam of accelerated electrons instead of visible light for illumination and image formation. Due to very short wavelength of electrons, it can overcome the diffraction limit of light microscope lenses. Hence, it gives very high resolving power and very high magnification as compared to compound … Read more
What is Cell Cycle? Cell cycle is the ordered sequence of events by which a cell grows and divides to form two genetically identical daughter cells. It is the process that ensures continuity of life by producing new cells from pre existing cells. The cell cycle is a carefully regulated process and it occurs in … Read more
What is Checkpoint? A checkpoint is a control point in cell cycle. It is a internal surveillance mechanism present in eukaryotic cell. It ensures that cell division occurs in proper manner. It act like a quality control step where progression is checked before moving to next phase. It is the process where cell checks cell … Read more
Paul Ehrlich Paul Ehrlich (1854–1915) was a German physician, biochemist and scientist. He is regarded as one of the founders of modern hematology, immunology and chemotherapy. His work was mainly concerned with immunity, staining techniques and chemical treatment of diseases. In 1908, he was awarded the Nobel Prize in Physiology or Medicine along with Élie … Read more
1. Julius Wagner-Jauregg Julius Wagner-Jauregg was an Austrian psychiatrist. He was the first psychiatrist who received the Nobel Prize in Physiology or Medicine. He is mainly known for introducing malarial therapy for the treatment of neurosyphilis. It is considered as one of the earliest biological treatment in psychiatry. Key Contributions of Julius Wagner-Jauregg Development of … Read more
1. Ignaz Semmelweis Ignaz Semmelweis was a Hungarian physician and obstetrician (1818–1865). He is regarded as the “savior of mothers”. He worked in a maternity clinic in Vienna where high maternal deaths were observed after childbirth. It was during this period that he studied the cause of puerperal fever. Key Contributions of Ignaz Semmelweis Some … Read more
1. Joseph Lister Joseph Lister was a British surgeon and medical scientist. He was born in Essex, England in 1827 in a Quaker family. He is regarded as the father of modern surgery and father of antiseptic surgery. He obtained the degree of Bachelor of Medicine from University College London in 1852. His main work … Read more
Who was Antonie van Leeuwenhoek? Antonie van Leeuwenhoek was a Dutch scientist who is regarded as the Father of Microbiology. He was born in 1632 in Delft, Netherlands. He did not receive formal higher education and he spoke only Dutch. He started his career as a linen draper. In this work he used small magnifying … Read more
Who Was Louis Pasteur? Louis Pasteur was a French chemist and microbiologist who is regarded as one of the founder of modern bacteriology and microbiology. He was born in 1822 at Dole in France. His work is considered as the foundation of microbiology and immunology. In the early period of his career, he studied chemistry, … Read more
