Research presents an advance in drug delivery and tissue implantation assisted by ultrasound, developed by researchers from the Technion Faculty of Biomedical Engineering. The work is published in the journal Small Methods.
Apr 22, 2024
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A novel screening system developed at Kyoto University enables researchers to investigate sperm cell development and health at the molecular level.
Mar 5, 2024
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Every system in a living organism depends upon a finite supply of energy in order to function. In humans, no organ is more energy-intensive than the brain, which consumes about 20% of the body's metabolic energy.
Jan 25, 2024
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A new study sheds light on how autophagy, the body's process for removing damaged cell parts, when impaired, can play a role in causing heart failure.
Jan 11, 2024
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Case Western Reserve University and MetroHealth cancer researchers have successfully unraveled a mystery surrounding a receptor protein that can either suppress cancer or foster its growth and spread. The findings, recently ...
Dec 13, 2023
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Gene therapy has great promise for treating genetic diseases, and even for more common diseases such as atherosclerosis (hardening of the arteries). Over the past decade, the gene-editing technology CRISPR (Clustered Regularly ...
Nov 16, 2023
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Malaria is one of the most widespread and deadly infectious diseases worldwide. New compounds are continuously required due to the risk of malaria parasites becoming resistant to the medicines currently used. A team of researchers ...
Nov 13, 2023
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Researchers in Sweden have developed a microscale device for implantation in the eye, which presents new opportunities for cell-based treatment of diabetes and other diseases.
Oct 18, 2023
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The coronavirus pandemic brought global renown to the mRNA technology that underpins vaccines from Pfizer/BioNTech and Moderna, and on Monday earned a Nobel Prize for two scientists who have been key to its development.
Oct 2, 2023
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A team of researchers has uncovered a previously unknown compensatory mechanism found in liver disease. If Kupffer cells (KCs), a specific kind of immune cells found in the liver, become impaired by tissue scarring, immune ...
Sep 28, 2023
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The cell is the structural and functional unit of all known living organisms. It is the smallest unit of an organism that is classified as living, and is often called the building block of life. Some organisms, such as most bacteria, are unicellular (consist of a single cell). Other organisms, such as humans, are multicellular. (Humans have an estimated 100 trillion or 1014 cells; a typical cell size is 10 µm; a typical cell mass is 1 nanogram.) The largest known cell is an unfertilized ostrich egg cell.
In 1835 before the final cell theory was developed, a Czech Jan Evangelista Purkyně observed small "granules" while looking at the plant tissue through a microscope. The cell theory, first developed in 1839 by Matthias Jakob Schleiden and Theodor Schwann, states that all organisms are composed of one or more cells. All cells come from preexisting cells. Vital functions of an organism occur within cells, and all cells contain the hereditary information necessary for regulating cell functions and for transmitting information to the next generation of cells.
The word cell comes from the Latin cellula, meaning, a small room. The descriptive name for the smallest living biological structure was chosen by Robert Hooke in a book he published in 1665 when he compared the cork cells he saw through his microscope to the small rooms monks lived in.
This text uses material from Wikipedia, licensed under CC BY-SA
