Researchers have created a molecular image of a system that moves electrons between proteins in cells. The achievement is a breakthrough for biology and could provide insights to minimize energy loss in other systems, from nanoscale devices to moving electricity around the country.

Repair proteins appear to efficiently scan the genome for errors by jumping like fleas between DNA molecules, sliding along the strands, and perhaps pausing at suspicious spots, say researchers who tagged the proteins with quantum dots to watch the action unfold.

Scientists have hit on a new, versatile method to significantly improve the detection of trace chemicals important in such areas as national security, human health and the environment. The research team was able to detect and identify tiny particles of the explosive trinitrotoluene or TNT — each weighing less than a billionth of a gram — on the ridges and canals of a fingerprint.

Chemists have developed the most potent homogeneous catalyst known for water oxidation, considered a crucial component for generating clean hydrogen fuel using only water and sunlight.

A recent discovery in understanding how to chemically break down the greenhouse gas carbon dioxide into a useful form opens the doors for scientists to wonder what organism is out there — or could be created — to accomplish the task. Scientists have figured out a way to efficiently turn carbon dioxide into carbon monoxide using visible light, like sunlight.

New experiments show that it’s possible to focus light through opaque materials and detect objects hidden behind them, provided you know enough about the material.

Chemical engineers have built a sensor array that, for the first time, can detect single molecules of hydrogen peroxide emanating from a single living cell.

Researchers believe they have uncovered the basis how marine mussels use the byssus, a bundle of tough and extensible fibers, to fasten securely to wave-swept rocky coastlines.

Researchers have uncovered details about how cyanobacteria, one of the most abundant organisms on Earth, digest carbon. These bacteria build miniature factories inside themselves that turn carbon into fuel

Scientists have learned how an interval of DNA in an unexplored region of the human genome increases the risk for coronary artery disease, the leading cause of death worldwide. Their research reinforces the tantalizing possibility that many more disease risks — and potential therapies — are hidden in the vast and uncharted part of the genome that doesn’t contain instructions for making proteins.