Air filters are essential for protecting human health by removing harmful particulate matter from the air. However, conventional filters often struggle to securely retain captured particles, allowing some to detach over time and reducing filtration performance. To address this longstanding challenge, researchers from Chung-Ang University and Pusan National University developed an innovative self-renewing adhesive coating designed to improve particle retention, paving the way for more efficient and durable air filtration technologies.

Oligonucleotide synthesis is fundamental to genetic analysis, biological research, and nucleic acid therapeutics. However, current methods rely on moisture-sensitive building blocks and require a dedicated oxidation step with each chain elongation, making it operationally complex. To address this, researchers from Japan have developed a new approach using phosphorofluoridate building blocks, enabling efficient oxidation-free oligonucleotide synthesis. This advance simplifies the synthetic workflow, offering a faster and more reliable platform for nucleotide chemistry.

Beyond the gut and skin microbiota, a world of persistent intracellular microbes resides within human tissues. A new review introduces the concept of PIEM—persistent intracellular extraintestinal microbes—to describe these residents. Using human cytomegalovirus as a model, the authors propose that PIEMs act as systemic "tuning devices," calibrating immune, vascular, and metabolic baselines. The review also highlights circulating viral miRNAs as a liquid biopsy window for monitoring PIEM activity, opening directions for precision medicine.

Type 2 diabetes affects far more than glucose metabolism. Researchers have reported that a 16-week personalized exercise delivered broad health benefits for people with type 2 diabetes and abdominal obesity. Beyond reducing body fat, the intervention increased skeletal muscle mass, improved glycemic regulation and physical fitness, and enhanced cognitive performance. The findings suggest that personalized exercise should be viewed as a comprehensive therapeutic strategy rather than simply a weight-loss tool.

A new review in Science Bulletin proposes a "virulence phenotype-first" framework to assess the clinical risk of carbapenem-resistant hypervirulent Klebsiella pneumoniae (CR-hvKP). It argues that functional virulence expression—not just genetic markers—should guide real-time risk stratification for this emerging superbug.

Scientists have discovered a previously unknown law of geometry that explains why some growing surfaces, whether in nature or engineered materials, suddenly stop being able to stay smooth and instead form dimples and folds. Until now, researchers believed they understood the geometric rules behind these shape changes, but this study reveals a new kind of "geometric frustration" that arises even when all the known rules are satisfied. The finding could reshape how scientists understand the formation of leaves, flowers, tissues and other natural structures, while helping engineers design smarter materials that can deliberately change shape for applications in soft robotics, medicine and advanced manufacturing.