Science Highlights

EPR spectra (A) with generated with isotope labeled tyrosines show that a tyrosine radical (B) is cleaved to form an oxobenzyl radical (C) as an intermediate in forming the CO and CN Fe ligands in FeFe hydrogenase.

Totally Radical: Unique Chemistry Needed to Make a Biological Hydrogen Catalyst

Key steps revealed in assembling the active site of a hydrogen-generating catalyst in bacteria. Read More »

Focal series high-resolution transmission-electron microscope (TEM) image (here, for disordered 1.2-1.5 nm NPs) and histogram for fraction of ordered NPs versus size, where NPs > 2.5 nm were all observed to be ordered.

Nanoparticles: To Be or Not to Be Crystalline?

Discovery of coexisting ordered and disordered catalytic nanoparticles. Read More »

Scanning Tunneling Microscope Image Showing Atomically Dispersed Palladium Atoms in a Copper Surface.

Isolated Palladium Atoms Allow Highly-Selective Catalysis of Hydrogenation Reactions

Single palladium atoms convert the surface of an inexpensive metal into an ultra-selective hydrogenation catalyst. Read More »

Sequentially deposited green, orange, and red-emitting quantum dots serve as sensitizers within the titanium oxide film to render a rainbow architecture for harvesting photons from sunlight.

Tuning Into the Right Wavelength: Quantum Dot Rainbow Increases Solar Cell Efficiency

Layers of quantum dots Form “rainbow architecture” that enhances light absorption in a solar cell. Read More »

Quantum Tunneling Affects Engine Performance.

Quantum Tunneling Affects Engine Performance

Understanding fundamental chemistry is important for accurate engine modeling. Read More »

Image of simulated soot particle courtesy of N. D. Loh and A. Freeberg, SLAC National Accelerator Laboratory.

More Than Meets the Eye: X-ray Vision Exposes Aerosol Structures

Soot particle diversity and complexity discovered using ultrafast x-rays at the Linac Coherent Light Source (LCLS). Read More »

Disruption of Mediator rescues growth and fertility in Arabidopsis low lignin mutants.

Mediating Biofuel Complexity through “Mediator” Modification

Research points to more efficient and lower cost routes to high-yield biomass-derived renewable fuels. Read More »

Modified amino acid residues leave a tell-tale “trail” of water’s passage through the protein and to the active site of the photosynthetic protein complex known as Photosystem II (PS II).

Following the Trail of Water Molecules Through Photosystem II During Photosynthesis

Researchers have identified a possible channel that enables substrate water molecules to travel to the active site of Photosystem II. Read More »

Light emitting diode comprising an active layer of engineered quantum dots (QDs) contacted by electron (bottom) and hole (top) transport/injection layers.

Improving Quantum Dot Light Emitting Diodes: One Step Closer to Lighting Up Your Room

Nanoscale engineering boosts the performance of quantum dot light emitting diodes. Read More »