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Nuclear — Seeing inside particles

Oak Ridge National Laboratory researchers working on neutron imaging capabilities for nuclear materials have developed a process for seeing the inside of uranium particles – without cutting them open.

Shuo Qian preps the Bio-SANS instrument.

A versatile class of flexible, protein-like polymers could significantly advance future drug delivery methods. But first, scientists have to develop a reliable process for tailoring these polymers into shapes that can effectively transport medicines throughout the human body.

Scientists created a novel polymer that is as effective as natural proteins in transporting protons through a membrane. Credit: ORNL/Jill Hemman

Biological membranes, such as the “walls” of most types of living cells, primarily consist of a double layer of lipids, or “lipid bilayer,” that forms the structure, and a variety of embedded and attached proteins with highly specialized functions, including proteins that rapidly and selectively transport ions and molecules in and out of the cell.

Diagram illustrating the dissolution process of cellulose fibrils. On the left, tightly packed cellulose fibrils are shown as green chains, labeled 'Tightly Packed Cellulose Fibrils.' In the center, an arrow points to the right, with text reading '+ Ammonia-Salt Solvent at Room Temperature Pressure.' On the right, the dissolved cellulose structure is depicted as colorful molecular chains, labeled 'Cellulose Dissolved in Solvent.

Researchers have developed a new process that could make it much cheaper to produce biofuels such as ethanol from plant waste and reduce reliance on fossil fuels.