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Lawrence Berkeley National Laboratory

All articles tagged with #lawrence berkeley national laboratory

science1 year ago

"Breakthrough Discovery: Nitrogen-Fixing Organelle Emerges from Evolutionary Merger"

Scientists have discovered the first nitrogen-fixing organelle within a eukaryotic cell, challenging the belief that only bacteria can perform nitrogen fixation. Named a nitroplast, this organelle is the result of a rare process called primary endosymbiosis, where a prokaryotic cell is engulfed by a eukaryotic cell and evolves into an organelle. The discovery, involving decades of work and a bit of luck, sheds light on the evolution of organelles and has the potential to change perspectives on nitrogen fixation, agriculture, and ocean ecosystems. This research was funded by the Simons Foundation, National Institute of General Medical Sciences, and the Department of Energy (DOE) Office of Science Office of Biological and Environmental Research.

science-and-technology1 year ago

"Unveiling Resistance-Free Electron Channels at Chiral Interfaces"

Scientists at Lawrence Berkeley National Laboratory have developed a new technique to create resistance-free electron channels by visualizing and controlling chiral interface states in a quantum anomalous Hall insulator made from twisted monolayer-bilayer graphene. This exotic quantum phenomenon could advance quantum computing and energy-efficient electronics, with potential applications in tunable networks of electron channels and low-power magnetic memory devices. The researchers' work, published in Nature Physics, provides a significant step forward in understanding and manipulating these unique electron behaviors in quantum materials.