Oak Ridge Today

ORNL-UT researchers invent ‘sideways’ approach to 2-D hybrid materials

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heterostructure-anping

ORNL and UT researchers have invented a method to merge different 2-dimensional materials into a seamless layer. This colorized scanning tunneling microscope image shows a single-atom sheet composed of graphene (seen in blue) combined with hexagonal boron nitride (seen in yellow).

Researchers at Oak Ridge National Laboratory and the University of Tennessee in Knoxville have pioneered a new technique for forming a two-dimensional, single-atom sheet of two different materials with a seamless boundary.

The study, published in the journal Science, could enable the use of new types of 2-D hybrid materials in technological applications and fundamental research.

By rethinking a traditional method of growing materials, the researchers combined two compounds—graphene and boron nitride—into a single layer only one atom thick. Graphene, which consists of carbon atoms arranged in hexagonal, honeycomb-like rings, has attracted waves of attention because of its high strength and electronic properties. [Read more…]

ORNL researchers, UT-ORNL Governor’s Chair elected APS fellows

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ORNL APS Fellows

From left, Oak Ridge National Laboratory researchers Michael S. Smith and Viatcheslav V. Danilov and University of Tennessee-ORNL Governor’s Chair Steven Zinkle have been elected fellows of the American Physical Society. (Submitted photo)

Two researchers from Oak Ridge National Laboratory and a University of Tennessee-ORNL Governor’s Chair professor have been elected fellows of the American Physical Society.

The ORNL researchers are Viatcheslav V. Danilov of the Research Accelerator Division and Michael Scott Smith of the Physics Division. Steven J. Zinkle, formerly of ORNL and now a UT-ORNL Governor’s Chair, was recognized for his work during a 28-year career at the national laboratory.

Danilov was recognized by his APS peers “for fundamental and creative solutions to a wide range of accelerator physics issues, including laser stripping ring injection, integrable beam dynamics, space charge and instabilities.” [Read more…]

New security contractor for DOE Oak Ridge receives ‘commendable’ rating

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Joe L. Evins Federal Building

The Joe L. Evins Federal Building is one of three federal facilities protected by National Strategic Protective Services LLC in Oak Ridge.

The new security contractor for the U.S. Department of Energy in Oak Ridge has received a “commendable” rating for its performance protecting federal facilities.

National Strategic Protective Services LLC, a joint venture of Triple Canopy Inc. and Securiguard Inc., provides protective force services at the East Tennessee Technology Park, Joe L. Evins Federal Building, and Oak Ridge National Laboratory.

“DOE recognized NSPS for its ability to quickly adapt and respond to customer needs while seamlessly assuming responsibility as the Oak Ridge protective force services provider in March 2013,” a press release said. [Read more…]

ORNL to lose 189 workers through voluntary separations by Dec. 31

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Oak Ridge National Laboratory Central Campus

The Oak Ridge National Laboratory’s central campus is pictured above. (Courtesy Oak Ridge National Laboratory/U.S. Dept. of Energy)

One hundred eighty-nine employees at Oak Ridge National Laboratory will go off the payroll at the end of this month as part of a workforce reduction announced in September.

ORNL had received permission to reduce its staff by up to 475 employees, but in September, officials said they hoped they wouldn’t have to make that many cuts.

The voluntary separation program, or VSP, was part of the lab’s response to federal budget pressures. ORNL has also implemented other belt-tightening measures during the past few years. [Read more…]

DOE, UT-Battelle could negotiate five-year contract extension at ORNL

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Oak Ridge National Laboratory Central Campus

The Oak Ridge National Laboratory’s central campus is pictured above. (Courtesy Oak Ridge National Laboratory/U.S. Dept. of Energy)

The U.S. Department of Energy and UT-Battelle could negotiate a five-year contract extension at Oak Ridge National Laboratory, officials said Thursday.

The current contract ends in March 2015. If granted, the extension would allow UT-Battelle to manage the lab though 2020. UT-Battelle is a nonprofit partnership between the University of Tennessee and Battelle Memorial Institute.

U.S. Rep. Chuck Fleischmann, a Tennessee Republican, announced the potential contract extension during a special holiday meeting of the East Tennessee Economic Council on Thursday. ETEC had asked DOE to not rebid the contract—but extend it instead, Fleischmann said.

The congressman said the negotiations over a possible extension were based on a “job well-done” at the premier lab. [Read more…]

AMSE’s operating contract with for-profit could be replaced by nonprofit

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American Museum of Science and Energy

The American Museum of Science and Energy on South Tulane Avenue in Oak Ridge is pictured above.

The contract with the for-profit company that runs the American Museum of Science and Energy will change from quarterly to monthly starting Jan. 1, and a museum expert could be hired on an interim basis to assess the museum, its place in the community, and a logical new operating structure.

The museum is now funded by the U.S. Department of Energy at a cost of about $1.5 to $1.6 million per year, said David Keim, communications director at Oak Ridge National Laboratory. Revenues from the gift shop, admissions, and programs add up to about $300,000 per year.

But officials have long said that the department should not be operating the museum.

“It’s always been a government-funded operation,” Keim said. But, “DOE is not in the museum business.”

In June, a group of museum directors brought to Oak Ridge from around the country recommended that the museum be run by a community-based nonprofit organization—not DOE and not a for-profit company, Keim said. [Read more…]

Terry Payne, an ORNL program manager, named Anderson County Chamber chair

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Terry Payne

Terry Payne

Terry Payne, a program manager at Oak Ridge National Laboratory, has been named board chairman for the Anderson County Chamber of Commerce in 2014.

Payne is a research and development, or R&D, program manager at ORNL, where he has been employed for the past 30 years, a press release said. He has managed R&D Programs in the areas of energy management, isotope separation, and environmental management.

Payne was instrumental in creating numerous partnership between ORNL and small businesses that were funded by Small Business Innovation Research, the press release said. [Read more…]

Supercomputers help ORNL researchers identify molecular switch that controls cell behavior

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E. coli Chemoreceptor Switch

Red and blue molecules represent a conformational switch essential to the signaling mechanism of an E. coli chemoreceptor that researchers discovered using computational molecular dynamics simulations. (Image credit: Davi Ortega)

If scientists can control cellular functions such as movement and development, they can cripple cells and pathogens that are causing disease in the body.

Supported by National Institutes of Health grants, researchers at Oak Ridge National Laboratory, the University of Tennessee, and the UT-ORNL Joint Institute for Computational Sciences discovered a molecular “switch” in a receptor that controls cell behavior using detailed molecular dynamics simulations on a computer called Anton built by D.E. Shaw Research in New York City. To study an even larger signaling complex surrounding the switch, the team is expanding these simulations on Titan—the nation’s most powerful supercomputer, managed by the Oak Ridge Leadership Computing Facility at ORNL.

Researchers identified the molecular switch on Anton (which was designed to perform speedy molecular dynamics simulations) by simulating 140,000 atoms that make up the signaling part of the Tsr chemoreceptor that controls motility in E. coli. Like other receptors, Tsr spans the cell membrane, communicating to proteins inside the cell in order to respond to threats or opportunities in the environment. [Read more…]

ORNL’s Bruce Pint elected 2014 NACE fellow

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Bruce Pint

Bruce Pint

Bruce Pint, a research staff member at Oak Ridge National Laboratory, has been elected a 2014 National Association of Corrosion Engineers fellow.

Pint is a principal investigator for many research and development projects, including corrosion issues in fossil energy, nuclear energy, fusion energy, and combined heat and power systems. His research during the past 25 years covers compatibility, lifetime predictions, environmental effects, and coatings for metals and ceramics in all types of power generation.

He received his doctorate in ceramic science and engineering from Massachusetts Institute of Technology in 1992. [Read more…]

Bioluminescence technology from UT a top innovation, researchers have ORNL connection

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University of Tennessee Bioluminescence and Microtiter Plate

Pictured above is a micro titer plate showing light signals in cells, illustrating bioluminescence technology. (Photo courtesy University of Tennessee)

KNOXVILLE—Technology that lights up cells to enable study of the effects of drugs and monitor disease is among The Scientist magazine’s Top 10 innovations of 2013. It’s also a University of Tennessee technology and licensed by a Knoxville-based startup company.

Technology using humanized bacterial luciferase developed by UT researchers and licensed by 490 BioTech, founded by two UT Knoxville faculty members and two then-graduate assistants, is ranked sixth on the magazine’s list. For more about the innovation list, visit here.

“The development of this technology originated more than 10 years ago, and with hard work by past graduate students and key financial support from the National Institutes of Health, the National Science Foundation, and University of Tennessee Research Foundation, it evolved into a marketable product that can be used to make pharmaceutical drugs safer, better, and cheaper,” said Steven Ripp, co-founder and chief operating officer of 490 BioTech and research associate professor at UT Knoxville. “Being recognized as a Top 10 technology is a significant milestone for our company, and it will greatly assist in mainstreaming our product toward better disease management and improved health care.” [Read more…]

ORNL establishes Liane B. Russell Distinguished Early Career Fellowship

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Liane B. Russell

Liane B. Russell

With the goal of expanding opportunities for early career researchers, Oak Ridge National Laboratory has established a research award in the name of its most acclaimed woman scientist.

The Liane B. Russell Distinguished Early Career Fellowship is intended to attract a diverse work force of scientists and engineers who have demonstrated outstanding scientific ability and research interests that align with the U.S. Department of Energy and ORNL research missions.

The competitive, three-year fellowship is aimed toward establishing long-term research careers at ORNL, a press release said. In the spirit of ORNL’s groundbreaking female geneticist, Russell, these fellowships will be available to outstanding scientists and engineers who have received their doctorate degrees within the past seven years, with emphasis given to attracting women and minority candidates. [Read more…]

Ecologist, community leader receives Rotary Club Vocational Service Award

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Chuck Coutant

Chuck Coutant

Chuck Coutant, a retired Oak Ridge National Laboratory fish biologist and active community leader for more than 40 years, recently received the Vocational Service Award of the Rotary Club of Oak Ridge at the club’s noon luncheon meeting at the DoubleTree Hotel.

A native of upstate New York and resident of Oak Ridge since 1970, Coutant was recognized for his leadership in the community in environmental and cultural activities, his excellence as an Oak Ridge National Laboratory scientist, and his influence on national and international environmental policies.

Currently, Coutant is a consultant to power companies for environmental evaluation of cooling systems and is president of Friends of ORNL. [Read more…]