Human urine is often regarded as mere waste, but in large quantities, it presents significant environmental challenges. Excess nutrients from urine can overwhelm water systems, leading to pollution and ecological damage. Now, researchers have developed a groundbreaking solution that not only addresses this environmental issue but also creates a valuable medical material in the process.

A team of scientists from the University of California, Irvine, in collaboration with institutions in the U.S. and Japan, has engineered a synthetic yeast system that transforms urine into hydroxyapatite (HAp)—a phosphate mineral widely used in bone and dental implants, archaeological restoration, and biodegradable products.

Scientists at the Daegu Gyeongbuk Institute of Science and Technology (DGIST) have developed the world’s first practical next-generation betavoltaic cell, marking a significant advancement in long-term, autonomous power generation. By integrating carbon-14 with a perovskite absorber layer, the team has created a compact energy source capable of delivering stable performance over extended periods without the need for recharging.

This innovative device was achieved by embedding carbon-14-based quantum dots into the radioactive electrode and optimizing the structure of the perovskite material. These enhancements led to a substantial increase in energy conversion efficiency and power output stability. The results, recently published in Chemical Communications, highlight the potential of this technology to power advanced electronics in extreme or remote environments.

Scientists at King’s College London have developed a nanoneedle-studded patch that can painlessly collect detailed molecular information from tissues, without cutting, scarring, or removing a single cell. The development could be a game-changer for patients who currently endure invasive procedures to diagnose conditions like cancer and Alzheimer’s. Traditional biopsies are a common procedure performed worldwide. It involves removing small chunks of tissue, often with a needle or scalpel, causing pain, risk of complications, and delays in diagnosis.

For organs like the brain, repeat biopsies are rarely possible. But this new patch with tens of millions of nanoneedles 1,000 times thinner than a human hair offers a pain-free alternative. For many, this could mean earlier diagnosis and more regular monitoring, transforming how diseases are tracked and treated.
“We have been working on nanoneedles for twelve years, but this is our most exciting development yet. It opens a world of possibilities for people with brain cancer, Alzheimer’s, and for advancing personalised medicine,” said Dr Ciro Chiappini, the lead author of the study.

In science fiction films like Frankenstein and Re-Animator, the idea of reviving the dead has fascinated audiences for generations. While these tales were once purely fantastical, recent scientific research suggests a similar phenomenon may be occurring in real life—a “third state” of existence that lies between life and death.

Researchers have found that after an organism dies, some of its cells can continue functioning. Even more remarkably, these cells can sometimes acquire new capabilities they never exhibited while the organism was alive.

For years, physicists have worked to design clocks capable of measuring incredibly small durations of time with extreme precision. Quantum clocks, in particular, have advanced this goal by using the strange and powerful principles of quantum mechanics to reach astonishing levels of accuracy.

Yet, there has always been a trade-off. As these clocks become more precise, they consume more energy and generate more entropy—essentially, disorder and wasted heat. This link between precision and thermodynamic cost has long been considered unavoidable.

Carbon capture and utilization (CCU) technologies are playing a growing role in efforts to address climate change by trapping carbon dioxide emissions and converting them into useful fuels or chemicals. However, for these systems to be commercially viable, they must run continuously for thousands of hours—a goal that has been hampered by persistent technical issues like salt buildup inside electrochemical reactors.

Researchers at Rice University have discovered a surprisingly straightforward solution to one of the most critical bottlenecks in CO₂ electroreduction systems. Instead of using water to humidify carbon dioxide gas before it enters the reactor, the team bubbled the gas through a mild acid solution. This small change allowed the system to remain stable for over 4,500 hours—more than 50 times longer than standard water-based setups.