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Posts Tagged ‘chemistry’

Tracking Catalytic Reactions in Microreactors

February 21, 2014

Berkeley Lab researchers have demonstrated a technique that for the first time allows the catalytic reactivity inside a microreactor to be mapped in high resolution from start-to-finish. This technique opens a more effective and efficient synthesis of pharmaceutical drugs and other flow reactor chemical products.

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Shapes of Things to Come: Exotic Shapes for Liquid Drops Have Many Possible Uses

December 2, 2013

Through a combination of water, oil and nanoparticle surfactants plus an external field, spherical droplets are being transformed into ellipsoids and other unusual shapes that could find many valuable uses.

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In Water as In Love, Likes Can Attract

September 18, 2013

Berkeley Lab researchers have shown that, contrary to the scientific axiom that only opposite charges attract, when hydrated in water, positively charged ions can pair up with one another.

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Roman Seawater Concrete Holds the Secret to Cutting Carbon Emissions

June 4, 2013

At the Advanced Light Source, scientists analyzed samples from a Roman breakwater that has been submerged in the Bay of Naples for over two millennia, revealing the secrets of crystal chemistry that allow Roman seawater concrete to resist chemical attack and wave action for centuries. The manufacture of extraordinarily durable Roman maritime concrete released much less carbon than most modern concrete does today and presents important opportunities for improving quality and reducing atmospheric carbon.

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Atom by Atom, Bond by Bond, a Chemical Reaction Caught in the Act

May 30, 2013

Berkeley Lab scientists have produced remarkable images of carbon atoms and the bonds among them. Resembling glowing textbook diagrams, hydrocarbon molecules are shown in high resolution for the first time before and after the breaking, rearrangement of atoms, and reforming of bonds during a complex chemical reaction.

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Chromatography Goes Gold: Gold Nanoparticles and Monoliths Make a Perfect Match

April 30, 2013

The power of chromatography for studying proteins and peptides can be substantially boosted with the addition of gold nanoparticles to polymer monolith surfaces.

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Reading the Human Genome

February 27, 2013

Berkeley Lab researchers have achieved a major advance in understanding how genetic information is transcribed from DNA to RNA by providing the first step-by-step look at the biomolecular machinery that reads the human genome.

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Searching for the Solar System’s Chemical Recipe

February 20, 2013

The ratio of isotopes in elements like oxygen, sulfur, and nitrogen were once thought to be much the same everywhere, determined only by their different masses. Then isotope ratios in meteorites, interplanetary dust and gas, and the sun itself were found to differ from those on Earth. Planetary researchers now use Berkeley Lab’s Advanced Light Source to study these “mass-independent” effects and their origins in the chemical processes of the early solar system.

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The Best of Both Catalytic Worlds

October 10, 2012

Berkeley Lab researchers have combined the best properties of heterogeneous and homogeneous catalysts by encapsulating metallic nanoclusters within the branched molecular arms of dendrimers. The results are heterogenized homogeneous nanocatalysts that are sustainable and feature high reactivity and selectivity.

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A Clock that Will Last Forever

September 24, 2012

Imagine a clock that will keep perfect time forever or a device that opens new dimensions into the study of such quantum phenomena as emergence and entanglement. Berkeley Lab researchers have proposed a space-time crystal based on an electric-field ion trap and the Coulomb repulsion of particles that carry the same electrical charge.

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