The centuries-old skull of a white man found in Australia is raising questions about whether Captain James Cook really was the first European to land on the country's east coast.
Archaeology
Jul 1, 2013
8
0
(Phys.org) —Scientists in Japan have genetically engineered silkworms to create red, green or orange silks that glow under fluorescent lights.
Utilizing the most rigorous testing methods to date, researchers from North Carolina State University have isolated additional collagen peptides from an 80-million-year-old Brachylophosaurus. The work lends further support ...
Archaeology
Jan 23, 2017
0
2209
(PhysOrg.com) -- In a new study, biochemist James San Antonio and colleagues offer evidence to support the claims by Mary Higby Schweitzer back in 2005, that she and her colleagues had unearthed a soft tissue specimen that ...
(PhysOrg.com) -- Using cutting-edge microscopy techniques, researchers have gained insight into how human mummies can be extremely well-preserved for thousands of years. A team of scientists from Germany and Italy has investigated ...
A loner and a hunter with highly developed territorial instincts, a cruel carnivore, a disobedient individual: the cat. These features make the species averse to domestication. Even so, we did it. Nowadays, about 500 million ...
Plants & Animals
Jul 13, 2020
2
1895
Found in cartilage, bones, blood vessels, skin, and other connective tissues, collagens are the most abundant proteins by weight in the human body. In an article published recently in Nature Reviews Materials, UCI biomedical ...
Biochemistry
Jul 27, 2020
0
366
Scientists at The University of Texas at Austin have demonstrated a method for making three-dimensional images of structures in biological material under natural conditions at a much higher resolution than other existing ...
Nanophysics
Sep 6, 2016
0
1422
(Phys.org) —The ability of a cell to move, replicate, and recast itself according to the needs of the organism which it serves, comes at it price. The extreme flexibility of cells takes its origin from the constant turnover ...
Scientists from Queen Mary University of London (QMUL) have discovered for the first time how marine animals called sea cucumbers can rapidly change the stiffness of their body, which could provide a useful basis for developing ...
Plants & Animals
Oct 7, 2016
0
491
Collagen /ˈkɒlədʒɨn/ is a group of naturally occurring proteins found in animals, especially in the flesh and connective tissues of mammals. It is the main component of connective tissue, and is the most abundant protein in mammals, making up about 25% to 35% of the whole-body protein content. Collagen, in the form of elongated fibrils, is mostly found in fibrous tissues such as tendon, ligament and skin, and is also abundant in cornea, cartilage, bone, blood vessels, the gut, and intervertebral disc. The fibroblast is the most common cell which creates collagen.
In muscle tissue, it serves as a major component of the endomysium. Collagen constitutes one to two percent of muscle tissue, and accounts for 6% of the weight of strong, tendinous muscles. Gelatin, which is used in food and industry, is collagen that has been irreversibly hydrolyzed.
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