Photosensitizers absorb sunlight and pass that energy along to generate electricity or drive chemical reactions. Scientists watched what happened when light hit an inexpensive photosensitizer, iron carbene, and discovered it can respond in two competing ways, only one only one of which allows electrons to flow into the devices or reactions where they're needed. It took this desired path about 60%...

Proposed a century ago, inverse transitions seem to contradict the fundamental law that disorder increases with temperature. They have been found in superconductors and liquid crystals, but not yet in ferroelectric materials, which have a variety of uses in electronics and data storage.

Children with higher concentrations of a certain chemical in their blood are more likely to get cavities, according to a new study. Researchers found that higher concentrations of PFAS were associated with greater tooth decay in children.

Genetically edited immune cells can persist, thrive, and function months after a cancer patient receives them.

Scientists have developed the most advanced disease model for blood vessels to date and used it to discover a unique role of the endothelium in Hutchinson-Gilford Progeria Syndrome. This devastating and extremely rare genetic disease causes symptoms resembling accelerated aging in children. The model is the first to grow both the smooth muscle and inner lining, or endothelium, layers of blood...

The protein tau has long been implicated in Alzheimer's and a host of other debilitating brain diseases. But scientists have struggled to understand exactly how tau converts from its normal, functional form into a misfolded, harmful one. By analyzing brain tissue from patients, researchers have revealed that modifications to the tau protein may influence what type of disease that will develop --...

Scientists have identified a molecular 'switch' that controls the immune machinery responsible for chronic inflammation in the body. The finding could lead to new ways to halt or even reverse many age-related conditions, from from Alzheimer's and Parkinson's to diabetes and cancer.

After identifying a molecular pathway that allows nonalcoholic steatohepatitis (NASH) to progress into liver cell death, researchers were able to use these pathways to halt further liver damage.

New research has deciphered how rogue communications in blood stem cells can cause leukemia. The discovery could pave the way for new, targeted medical treatments that block this process.

From plastics to pesticides, it seems like every week delivers fresh news about the dangers of endocrine disruptors -- chemicals in the environment that alter the body's hormones and can lead to reproductive, developmental, neurologic and immune problems and cancer. Industry regulation and individual consumer choice can reduce exposure to such chemicals, but there are few options to counteract...

Methanol is a versatile and efficient chemical used as fuel in the production of countless products. Carbon dioxide (CO2), on the other hand, is a greenhouse gas that is the unwanted byproduct of many industrial processes. Converting CO2 to methanol is one way to put CO2 to good use. Chemical engineers have now demonstrated how to make that conversion process from CO2 to methanol more efficient by...

Scientists used biochemical experiments and cryo-electron microscopy (cryo-EM) to determine the atomic structure of a complex assembly of molecules known as the histone mRNA three-prime (3') end-processing machine. This machine plays a fundamental role in proper activity and duplication of the cell genome and when defective, it may lead to human diseases, including cancers.

Scientists have uncovered the underlying rules that, when broken, contribute to neurodegenerative diseases such as ALS.

The situation is extraordinary: there have only ever been four declarations of public health emergencies of international concern in the past and now there are two at the same time.

Researchers have created a new technique that shows which species will be at risk from climate change, where those risks are most severe, and even suggests things we can do to reduce those risks. The method to predict extinction risk works very well for bumble bees and could in theory be applied universally to other organisms.

Engineers have created a tiny portable lab that plugs into your phone, connecting it automatically to your doctor through a custom app. The lab the size of a credit card can diagnose infectious diseases such as coronavirus, malaria, HIV or Lyme disease or countless other health conditions such as depression and anxiety.

In the future, robots could take blood samples, benefiting patients and healthcare workers alike. A team has created a blood-sampling robot that performed as well or better than people, according to the first human clinical trial of an automated blood drawing and testing device.

Researchers found that the neurons involved in Pavlovian learning shift their behavior during the learning process and become more synchronized when a memory is formed.

A new study shows classrooms remain overlooked when it comes to the health risks of sitting still for too long. Researchers found most students don't realize the health risks can't be counteracted by later exercise, and perhaps unsurprisingly, students feel it is socially unacceptable to take a walk while the professor is still leading class. The researchers have solutions like building open...

An atmospheric chemist had spent her entire career probing the complexities of outdoor air -- how gases and particles in the atmosphere move, interact and change, and how human activities perturb the air we breathe. Then, she went inside. It turns out the chemistry inside can be vastly more complex than that of outdoor air systems.

Geographers are stepping into the virtual world of computer games to develop exciting new ways of assessing landscapes. Researchers have spent years analyzing geographical landscapes and determining what features people from different countries find most appealing. In a bid to engage younger audiences the team created a series of videos depicting dynamic fly-throughs of virtual landscapes.

A pioneering therapy for lingering depressive symptoms is now available online.

Easter Island society did not collapse prior to European contact and its people continued to build its iconic moai statues for much longer than previously believed, according to a team of researchers.

How and where receptors touch at the surface of a cell may influence the strength of neuronal connections and contribute to identifying better medical interventions for pain, cancer other diseases.