Originally published in January 1898
RNA — the molecule best known for its part in translating genetic code into protein-making instructions — is finding a new role in medicine. Key to this is that microRNA, once thought to exist only in cells, has been shown to travel outside cells to tissues all over the body through the blood, under the protection of ‘extracellular vesicles’...
Vesicles secreted by stem cells might give clinicians a safer and simpler alternative to cell therapy, but researchers are still grappling with how best to prepare and study these tiny particles...
Tests that detect extracellular RNA to spot cancer, heart disease and other conditions are in development
Doctors can triage and monitor patients faster—and sometimes more accurately—with the aid of the pocket-size machines
The device prevents oxygen deprivation in coronavirus-blocking respirators
Researchers have crafted a device that replicates the shape of the eye’s sensory membrane
Scientists stimulated the brain using electrodes implanted on its surface
Dehydrated blood that could be kept at room temperature for years may be possible thanks to a sugar used to preserve donuts—and made by tardigrades and brine shrimp so they can dry out and spring back with water...
Originally published in February 1967
With a few dollars, researchers replicated an instrument that typically costs thousands
A supersensitive detector system can also glean clues about health
A new device could ultimately increase the number of usable livers for transplants and could perhaps preserve other types of organs
Dressing material uses carbon nanofibers to aid healing
An inexpensive assay based on the technique can provide yes or no answers in under an hour—perhaps even in the home soon
A scaly sea creature called a chiton sparks an idea for new protective gear
The jury-rigged breathing aid, invented to deal with ventilator shortages, is now being tested as a kinder, gentler alternative to a tube in the trachea
RNA sequencing has shown a previously unknown dimension to the way malignant cells work—which could lead to novel treatments
As hospitals beg for protective gear and ventilators, some individuals are taking a creative approach to the problem
In mice, a test for lung cancer involves nanoprobes that recognize tumors and send reporter molecules into the urine for simple analysis.