Technology

Shaken, not Stirred: Berkeley Lab Scientists Spy Molecular Maneuvers

Stir this clear liquid in a glass vial and nothing happens. Shake this liquid, and free-floating sheets of protein-like structures emerge, ready to detect molecules or catalyze a reaction. This isn’t the latest gadget from James Bond’s arsenal—rather, the latest research from the U. S. Department of Energy (DOE)’s Lawrence Berkeley National Laboratory (Berkeley Lab) scientists unveiling how slim sheets of protein-like structures self-assemble. This “shaken, not stirred” mechanism provides a way to scale up production of these two-dimensional nanosheets for a wide range of applications, such as platforms for sensing, filtration and templating growth of other nanostructures.

“Our findings tell us how to engineer two-dimensional, biomimetic materials with atomic precision in water,” said Ron Zuckermann, Director of the Biological Nanostructures Facility at the Molecular Foundry, a DOE nanoscience user facility at Berkeley Lab. “What’s more, we can produce these materials for specific applications, such as a platform for sensing molecules or a membrane for filtration.” (more…)

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Chinese Americans Don’t Over Borrow, MU Study Finds

*Financial education needed to help U.S. economy

COLUMBIA, Mo. – Bad mortgage loans and rampant consumer debt were two of the primary causes for the recent economic recession in the U.S. Despite a national trend of debt problems, a University of Missouri researcher has found one American population that holds almost no consumer debt outside of typical home mortgages. (more…)

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Lifting Space Exploration to New Heights

A new space telescope designed to peer into the inner reaches of far-away solar systems and a balloon riding the jet stream 120,000 feet above ground are two UA research proposals selected by NASA for further evaluation as potential future science missions

A research balloon circling the Earth in the outer fringes of the atmosphere and a space telescope peering through the dust swirls of far-away solar systems in search of alien planets are among the winning proposals selected by NASA for further study as part of NASA’s Explorer Mission program. (more…)

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Mount Royal Reveals Its Archeological Secrets

History tells us that Paul Chomedey de Maisonneuve erected a cross atop Mount Royal in 1643 to thank God for sparing the city from flooding. However, according to 18th century archival documents, the cross was planted two kilometers away from where it is today. (more…)

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Breast Tenderness Following Combo Hormone Therapy Linked To Increased Breast Density

*Study examines biology underlying link between tenderness, cancer risk*

Post-menopausal women who experience breast tenderness after starting combination hormone therapy have a higher risk of breast cancer than women who don’t, a study by researchers with UCLA’s Jonsson Comprehensive Cancer Center has shown. One reason for this, they now say, may be that these women’s breasts are becoming more dense.

Such new-onset tenderness was found to be more pronounced after the start of combination estrogen-and-progestin therapy than with estrogen therapy alone. The link between new-onset tenderness and changes in breast density also was more pronounced in women on combination therapy, said the study’s first author, Dr. Carolyn Crandall, a UCLA professor of general internal medicine and a scientist with the Jonsson Cancer Center. (more…)

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MU Researchers Identify Differences in Facial Characteristics of Children with Autism Compared to Typically Developing Children

*Research is a step toward understanding cause of autism*

COLUMBIA, Mo. The face and brain develop in coordination, with each influencing the other, beginning in the embryo and continuing through adolescence. Now, University of Missouri researchers have found distinct differences between the facial characteristics of children with autism compared to those of typically developing children. This knowledge could help researchers understand the origins of autism.

“There is no clear answer about whether autism is caused by genetics or by environmental influences,” said Kristina Aldridge, lead author and assistant professor of anatomy in the MU School of Medicine and the Thompson Center for Autism and Neurodevelopmental Disorders. “If we can identify when these facial changes occur, we could pinpoint when autism may begin to develop in a child. Knowing that point in time could lead us to identify a genetic cause, a window of time when the embryo may be susceptible to an environmental factor, or both.” (more…)

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Manufacturing Goes Viral

*Researchers coax viruses to assemble into synthetics with microstructures and properties akin to those of corneas, teeth and skin*

Using a simple, single-step process, engineers and scientists at the University of California at Berkeley recently developed a technique to direct benign, filamentous viruses called M13 phages to serve as structural building blocks for materials with a wide range of properties.

By controlling the physical environment alone, the researchers caused the viruses to self-assemble into hierarchically organized thin-film structures, with complexity that ranged from simple ridges, to wavy, chiral strands, to truly sophisticated patterns of overlapping strings of material–results that may also shed light on the self-assembly of biological tissues in nature. (more…)

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