Chemists have used click chemistry to uncover unprecedented, powerful reactivity for making new drugs, diagnostics, plastics, smart materials and many other products. The new reactions enable chemists to link molecules of their choice together using derivatives of a common commercial chemical considered essentially inert.
Scientists say seven microscopic particles collected by NASA's comet-chasing spacecraft, Stardust, appear to have originated outside our solar system. If confirmed, this would be the world's first sampling of contemporary interstellar dust.
Through commands, autonomous devices arranged selves into vast, complex shapes in the first 1,000-robot flash mob.
Scientists looking at glacier melt since 1851 didn't see a human fingerprint until about the middle of the 20th century. Even then only one-quarter of the warming wasn't from natural causes. But since 1991, about 69 percent of the rapidly increasing melt was man-made.
NASA astronaut Reid Wiseman, Expedition 40 flight engineer, has installed Capillary Channel Flow experiment hardware in the Microgravity Science Glovebox located in the Destiny laboratory of the International Space Station.
Chemical engineers have achieved a breakthrough in the race for safer, longer-lasting batteries to power the world’s automobiles, cell phones, computers and autonomous robots. Adding certain halide salts to liquid electrolytes spontaneously creates nanostructured surface coatings on a lithium battery anode. The coating hinders the development of detrimental dendritic structures that grow within the battery cell.
Children with high everyday levels of a protein released into the blood in response to infection are at greater risk of developing depression and psychosis in adulthood, according to new research that suggests a role for the immune system in mental illness.
As the oil and gas drilling technique called hydraulic fracturing proliferates, a new study on the contents of the fluids involved in the process raises concerns about several ingredients. Out of nearly 200 commonly used compounds, there’s very little known about the potential health risks of about one-third, and eight are toxic to mammals.
Chasing cancer cells with chemotherapy drugs can save lives, but there's no guarantee that the treatment will kill every runaway cancer cell in the body. What if a treatment could lure them out of hiding and eliminate them in one swift blow? A scientist has created such a therapy— a tissue-like biomaterial that attracts cancer cells, like bits of metal to a magnet, and entraps them.
This week, journalist and scientific organizations accused the EPA of attempting to muzzle its independent scientific advisers by directing them to funnel all outside requests for information through agency officials.
Apple is banning the use of two potentially hazardous chemicals during the final assembly of iPhones and iPads as part of the company's latest commitment to protect the factory workers who build its trendy devices.
A new study suggests that antibiotic exposure during a critical window of early development in mice disrupts the bacterial landscape of the gut and permanently reprograms the body’s metabolism, setting up a predisposition to obesity. Moreover, the study shows that it is altered gut bacteria, rather than the antibiotics, driving the metabolic effects.
Maryam Mirzakhani, an Iranian-born Stanford Univ. professor, is the first woman to win math's highest honor, the Fields Medal. The prize and $13,700 is awarded every four years to mathematicians 40 years old or younger.
A large international study questions the conventional wisdom that most people should cut back on salt, suggesting that the amount most folks consume is OK for heart health— and too little may be as bad as too much. The findings came under immediate attack by other scientists.
Women with a vitamin D deficiency were nearly half as likely to conceive through in vitro fertilization (IVF) as women who had sufficient levels of the vitamin. Animal studies have shown that the hormone, which is produced in the skin as a result of sun exposure as well as absorbed from some fortified foods, affects fertility in many mammals.