The bioactivity of most near-infrared II (NIRII) fluorophores are limited, thereby conflicting the achievement of strong fluorescence and high catalytic activities, due to a lack of free electrons in the method.
Silicones are commonly used in the field of medicine to lubricate syringes, encapsulate medical devices, and develop surgical implants. Although the material is generally viewed as relatively inert to cells, they can trigger ...
Plants have a symbiotic relationship with their surrounding environment, being a vital indicator of the overall health of the landscape, as well as significant changes within it. One such driver of plant response is gas emissions, ...
Settling a half century of debate, researchers have discovered that tiny linear defects can propagate through a material faster than sound waves do.
General Physics
Oct 5, 2023
0
63
Most cells evolve slowly, accumulating incremental changes that better suit their environments. Immune cells, because they must adapt rapidly to counter new threats, evolve much more quickly. Part of that, UCLA physicists ...
Evolution
Apr 13, 2023
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267
New research at the University of Chicago has found that the same machinery used by mammalian cells to drive cellular differentiation also plays a critical role in activating genes in yeast in response to environmental stress.
Cell & Microbiology
Nov 22, 2022
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68
Facing starvation and stress conditions, some bacteria enter a dormant state in which life processes stop. Shutting down into a deep dormancy allows these cells, called spores, to withstand punishing extremes of heat, pressure ...
Cell & Microbiology
Oct 6, 2022
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226
Cyclosporine is one of the most common and effective immunosuppressant drugs used to treat chronic diseases like arthritis and psoriasis, but it comes with a risk of serious side effects. Scientists think that may be because ...
Biochemistry
Sep 27, 2022
0
84
Researchers from The University of Texas at Austin and North Carolina State University have discovered, for the first time, a unique property in complex nanostructures that has thus far only been found in simple nanostructures. ...
Nanophysics
Sep 13, 2022
0
239
A team of researchers from Colorado State University, the Smithsonian Conservative Biology Institute and the Save the Elephants program in Kenya reports that social support by members of elephant herds in African savanna ...
Stress is a biological term which refers to the consequences of the failure of a human or animal to respond appropriately to emotional or physical threats to the organism, whether actual or imagined. It includes a state of alarm and adrenaline production, short-term resistance as a coping mechanism, and exhaustion. Common stress symptoms include irritability, muscular tension, inability to concentrate and a variety of physical reactions, such as headaches and elevated heart rate.
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