Last update Native American teens at higher risk for substance abuse, 1 hour ago
A novel concept for a biosensor of the metabolite lactate combines an electron transporting polymer with lactate oxidase, which is the enzyme that specifically catalyzes the oxidation of lactate. Lactate is associated with ...
Art curators will be able to recover images on daguerreotypes, the earliest form of photography that used silver plates, after a team of scientists led by Western University learned how to use light to see through degradation ...
Colorado State University polymer chemists have taken another step toward a future of high-performance, biorenewable, biodegradable plastics.
Opioid drugs like morphine and fentanyl are a mainstay of modern pain medicine. But they also cause constipation, are highly addictive, and can lead to fatal respiratory failure if taken at too high a dose. Scientists have ...
Virginia Commonwealth University researchers have discovered a novel strategy for creating superatoms—combinations of atoms that can mimic the properties of more than one group of elements of the periodic table. These superatoms ...
Princeton chemists have found a way to make a naturally occurring enzyme take on a new, artificial role, which has significant implications for modern chemistry, including pharmaceutical production. Their work appears in ...
Opioids are powerful painkillers that act on the brain, but they have a range of harmful side effects including addiction. Researchers from the Max Planck Institute of Biochemistry (MPIB) in collaboration with researchers ...
Synthetic polymers are ubiquitous—nylon, polyester, Teflon and epoxy, to name just a few—and these polymers are all long, linear structures that tangle into imprecise structures. Chemists have long dreamed of making polymers ...
For the first time ever, researchers at the Texas Tech University Health Sciences Center (TTUHSC) have identified a specific amino acid residue that is responsible for inverting the communication between the opening of the ...
Scientists seeking to unlock the secrets of cellular aging have identified a gene that triggers senescence, a phenomenon in which cells stop dividing.
A new synthetic enzyme, crafted from DNA rather than protein, flips lipid molecules within the cell membrane, triggering a signal pathway that could be harnessed to induce cell death in cancer cells.
How can elimination of therapeutics from the bloodstream or their early enzymatic degradation be avoided in systemic delivery? Chinese scientists have new developed a method to bind an established cancer therapeutic, floxuridine, ...
What do you call a materials science discovery that was given a major boost by a lecture from a Nobel laureate in chemistry, used cryogenic electron microscopy (cryo-EM), and was pushed further along by a doctoral student's ...
It is hoped that cells created in a test tube can answer some of the major questions in biology. What is the minimum that a cell needs in order to live? And how did life on Earth begin? Researchers from the Max Planck Institute ...
Researchers at the U.S. Department of Energy's (DOE's) National Renewable Energy Laboratory (NREL) and the University of Georgia developed a new genetic engineering technique to dramatically improve an enzyme's ability to ...
From the spatter analysis made famous in the TV show Dexter to the frequent DNA profiling of CSI and the real cases covered in the FBI Files, blood tests are ubiquitous in forensic science. Now, researchers report in ACS ...
Metal-organic frameworks (MOFs) are materials with nano-sized pores in their crystal structures. These pores allow MOFs to capture molecules so efficiently that they are now prime candidates in applications like carbon capture ...
A new anticancer agent developed by the University of Warwick has been studied using microfocus synchrotron X-ray fluorescence (SXRF) at I18 at Diamond Light Source. As described in the Journal of Inorganic Biochemistry, ...
New University of Nottingham research proves that advanced materials containing molecules that switch states in response to environmental stimuli such as light can be fabricated using 3-D printing.
Many current and future technologies require alloys that can withstand high temperatures without corroding. Now, researchers at Chalmers University of Technology, Sweden, have hailed a major breakthrough in understanding ...
Scientists have obtained a slew of key information about proteins, the molecular workhorses of all cells, from single human cells for the first time.
Scripps Research scientists have solved a major problem in chemistry and drug development by using droplet-sized 'miniecosystems' to quickly see if a molecule can function as a potential therapeutic.
One of the challenges of modern pharmacology is specificity. Despite therapeutic effects, drugs can often have side effects. The biological basis for this has to do with the proteins and receptors that the drug targets and ...
Crystals are brittle and inelastic? A novel class of smart, bendable crystalline organic materials has challenged this view. Now, scientists have engineered a molecular soft cocrystalline structure that bends and twists reversibly ...
Chemists at Scripps Research have addressed one of the most formidable challenges in synthetic chemistry by inventing a method for "enantioselective remote meta-CH activation," which enables the making of chiral molecules ...
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Savvy gardeners know that they can adjust the color of hydrangea blossoms between pink and blue by altering the pH of the soil. But pH isn't the entire story.
Glucose is the primary source of energy and substrate for cells, and its uptake through the cell plasma membrane is largely dependent on the glucose transport (GLUT) family. GLUT1, one of the GLUT family members, is a ubiquitously ...
In the field of anticancer therapeutics, cationic antimicrobial peptides (AMPs) have gained prominence because of their cytotoxic and anticancer activity in drug-resistant cancer cells. Peptides are compounds consisting of ...
Research shows that abandoned mine waste can be transformed into glass-ceramic materials, and at a cheaper cost compared to traditional composite materials. This waste, located in open-air tanks, could be used to cover facades ...
Inside a narrow glass tube sits a substance that can harm or cure, depending on how you use it. It gives off a faint blue glow, a sign of its radioactivity. While the energy and subatomic particles it emits can damage human ...
About half of all drugs, ranging from morphine to penicillin, come from compounds that are from—or have been derived from—nature. This includes many cancer drugs, which are toxic enough to kill cancer cells.
Researchers have found that a previously uncharacterized tumor-suppressor protein plays an important role in the functioning of the immune system. The study, which will be published in the June 22 issue of the Journal of ...
Sandia National Laboratories is using its solar tower to help assess the impact of extreme temperature changes on materials.
Life is driven by molecular machines. Found in every cell, these tiny motors convert chemical energy into work to keep the body moving. The invention of synthetic molecular machines, which perform similar jobs to power miniaturized ...
Nickels are ubiquitous in American life, tumbling around in pockets, rolling under car seats, and emerging from the back of dryers to be used over and over for countless purchases. But these resilient and somewhat humble-looking ...
It can repel water, oil, alcohol and even peanut butter. And it might save the U.S. Navy millions of dollars in ship fuel costs, reduce the amount of energy that vessels consume and improve operational efficiency.
Quan-Hong Yang from Tianjin University and Wei Lv from Graduate School at Shenzhen, Tsinghua University with their co-workers reported a lightweight, high-level nitrogen-doping carbon nanofiber framework as the current collector ...
In the July 2018 issue of SLAS Discovery, a review article summarizes new methods of fragment-based lead discovery (FBLD) to identify new compounds as potential antibiotics.
Bloodhounds are famous for their ability to track scents over great distances. Now researchers have developed a modern-day bloodhound—a robot that can rapidly detect odors from sources on the ground, such as footprints. ...
A newly discovered supercapacitor has the highest energy density of any comparable system as demonstrated by a team of Molecular Foundry users and staff. These ultracapacitors can be charged and discharged repeatedly. The ...
LMU's Ralf Jungmann develops modes of microscopy that can resolve cellular structures with dimensions on the order of nanometers. He has now succeeded in imaging actin networks in cells in greater detail than before.
Would you live in a house made of fungus? It's not just a rhetorical question: fungi are the key to a new low-carbon, fire-resistant and termite-deterring building material.
The term alloy usually refers to a mixture of several metals. However, other materials can also be alloyed. In the semiconductor industry, for instance, oxide and nitride alloys have long been used successfully to tune the ...
Near-Earth objects (NEOs) are small solar system bodies whose orbits sometimes bring them close to the Earth, potentially threatening a collision. NEOs are tracers of the composition, dynamics and environmental conditions ...
Scientists have solved the riddle behind one of the most recognisable, and annoying, household sounds: the dripping tap. And crucially, they have also identified a simple solution to stop it, which most of us already have ...
Network theory is a method for analyzing the connections between nodes in a system. One of the most compelling aspects of network theory is that discoveries related to one field, such as cellular biology, can be abstracted ...
In the photoelectric effect, a photon ejects an electron from a material. Researchers at ETH have now used attosecond laser pulses to measure the time evolution of this effect in molecules. From their results they can deduce ...
A new NASA study explains why the Tracy and Heilprin glaciers, which flow side by side into Inglefield Gulf in northwest Greenland, are melting at radically different rates.
A team of researchers from the University of Naples Federico II and the University of Salerno has found that eels exposed to very small amounts of cocaine in the water suffer health problems. In their paper published in Science ...
Scientists studying bones excavated from an ancient tomb in Shaanxi Province, central China, have discovered an entirely new but already extinct genus of gibbons.
The human gut is teeming with microbes, each interacting with one another in a mind-boggling network of positive and negative exchanges. Some produce substances that serve as food for other microbes, while others produce ...
Microelectrodes can be used for direct measurement of electrical signals in the brain or heart. These applications require soft materials, however. With existing methods, attaching electrodes to such materials poses significant ...
Scientists have shed light on DNA 'melting' – a crucial process fundamental to all life.
Fresh insights into plant immunity amount to a new field of discovery that could advance the next generation of disease-resistant crops.
Purdue University scientists have discovered evidence that the repressive structures that plants use to keep genes turned off is built with a potential self-destruct switch. The findings offer insight into ways to control ...
A team of Texas A&M University and Texas AgriLife Research scientists have made a new discovery of how a single protein, Serrate, plays dual roles in controlling jumping genes.
An international team of astronomers have made the most precise test of gravity outside our own solar system.
The earth is rising in one part of Antarctica at one of the fastest rates ever recorded, as ice rapidly disappears and weight is lifted off the bedrock, a new international study has found.
Information is typically stored in physical systems, such as memory devices. But in a new study, physicists have investigated an alternative way to store and hide information, which is by storing it only in the quantum correlations ...
Exposure to fracking chemicals and wastewater promotes fat cell development, or adipogenesis, in living cells in a laboratory, according to a new Duke University-led study.
In a study published in Science this week, the researchers describe the dielectric properties of water that is only a few molecules thick. Such water was previously predicted to exhibit a reduced electric response but it ...
States will be able to force more people to pay sales tax when they make online purchases under a Supreme Court decision Thursday that will leave shoppers with lighter wallets but is a big financial win for states.
Scientists have demonstrated for the first time that horses integrate human facial expressions and voice tones to perceive human emotion, regardless of whether the person is familiar or not.
A team of international astrophysicists may have found a solution to a problem that has perplexed scientists for more than 50 years: why are the stars in globular clusters made of material different to other stars found in ...
In the same way that barcodes on your groceries help stores know what's in your cart, DNA barcodes help biologists attach genetic labels to biological molecules to do their own tracking during research, including of how a ...
The U.S. oil and gas industry emits 13 million metric tons of the potent greenhouse gas methane from its operations each year, 60 percent more than estimated by the U.S. Environmental Protection Agency, according to a new ...
Take a glass thread a thousand times thinner than a human hair. Use it as a wire between two metals. Hit it with a laser pulse that lasts a millionth of a billionth of a second.
An international group of astronomers have carried out multi-wavelength observations of HESS J1943+213 and found evidence supporting the hypothesis that this gamma-ray source is an extreme blazar. The finding is reported ...
Infrared cameras are the heat-sensing eyes that help drones find their targets, even in the dead of night or through heavy fog.
About a decade ago, astronomers discovered a population of small, but massive galaxies called "red nuggets." A new study using NASA's Chandra X-ray Observatory indicates that black holes have squelched star formation in these ...
Experiencing regret can leave a "bad taste" in one's mouth and drive an individual to compensate for one's losses. This immediate post-regret phenomenon was once thought to be unique to humans, but it has been recently demonstrated ...
A galaxy with at least one active supermassive black hole – named OJ 287 – has caused many irritations and questions in the past. The emitted radiation of this object spans a wide range – from the radio up to the highest ...
Many animals have evolved fur or feather colors to blend in with the environment and hide from predators. But how do animals stay camouflaged when their environment changes with each new season? Researchers at the University ...
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