化学

Researchers have identified a statistical signature in organic molecules that distinguishes biological from nonbiological chemistry, offering a new tool for detecting extraterrestrial life. The approach analyzes the distribution of amino acids and fatty acids without needing specialized instruments. It could apply to data from ongoing and future space missions.

May 05, 2026 由 AI 报道

Researchers at EPFL have developed Synthegy, an AI framework that lets chemists guide complex molecule synthesis using simple language instructions. The system combines traditional algorithms with large language models to evaluate and rank reaction pathways. It also aids in understanding reaction mechanisms, potentially speeding up drug discovery.

Researchers at New York University have developed a method to direct the assembly of microscopic particles into crystals using light. This technique, detailed in the journal Chem, allows for real-time control over crystal growth and dissolution. The approach could enable new responsive materials for applications in optics and photonics.

February 27, 2026 由 AI 报道 事实核查

Researchers at the University of Santiago de Compostela report a light-driven method that directly “allylates” methane—adding an allyl group that can be used to build more complex molecules—and they demonstrate the approach by producing the nonsteroidal estrogen dimestrol from methane.

Researchers have used conventional supercomputers to calculate the ground-state energy of FeMoco, a crucial molecule in nitrogen fixation, with the precision long thought exclusive to quantum computers. This breakthrough challenges claims of quantum advantage for such chemical simulations. The finding could accelerate efforts to understand and replicate nitrogen fixation for more efficient fertilizers.

January 05, 2026 由 AI 报道

Researchers from Ohio State University and Louisiana State University have pioneered a technique to observe ultrafast molecular interactions in liquids using high-harmonic spectroscopy. In a surprising experiment with fluorobenzene and methanol, they discovered a subtle hydrogen bond that suppresses light emission. This breakthrough, published in PNAS, opens new windows into liquid dynamics essential for chemistry and biology.