Researchers from NIST and the FDA have demonstrated that they can make sensitive chemical analyses of minute samples of nanoparticles by, essentially, roasting them on top of a quartz crystal. The NIST-developed technique, "microscale thermogravimetric analysis," holds promise for studying nanomaterials in biology and the environment, where sample sizes often are quite small and larger-scale analysis won't work.
Using a new microscopy method, researchers at Oak Ridge National Laboratory (ORNL) can image and...
A newly published research paper on super-...
To improve their chances of success, in vitro...
Once the snow melts, the bee population will be back in business pollinating and making honey. A new study by scientists in Canada reveals that some these bees use bits of plastic bags and plastic building materials to construct their nests. The discovery reveals how urban bee populations have adapted to a human-dominated world.
Oxford Instruments, a leading provider of high-technology tools for industry and research has recently acquired Andor. A supplier of high-performance cameras, microscope systems and software for the physical science and life science industries, Andor will continue to focus on growing its existing core markets and will spearhead Oxford Instruments strategic expansion into the nanobiotechnology arena.
Computational biologists in Austria have recently shown that the common practice of averaging is not always a good thing when it comes to analyzing protein crystal structures. A study shows that protein structures could be more dynamic and heterogeneous than current methods of x-ray analysis suggest.
The lipid-rich membranes of cells are largely impermeable to proteins, but evolution has provided a way through—in the form of transmembrane tunnels. A new study in Germany shows in unmatched detail what happens as proteins pass through such a pore.
Instrumentation company FEI has acquired Lithicon AS of Trondheim, Norway, and Canberra, Australia. Lithicon provides digital rock technology services and pore-scale micro computed tomography (µCT, or microCT) equipment to oil and gas companies worldwide. In conjunction with the acquisition, FEI has obtained the helical scan microCT product and associated software from the Australia National Univ.
Microscopy is growing at a rapid rate as the result of substantial investment in nanotechnology research. Advances in nanotechnology not only support advances in materials technology, they support developments in the semiconductor and medical devices industries. These billions of dollars drive support for advanced microscopy technologies, which are expected to become a $5 to 6 billion market globally by 2018.
By sandwiching a biological molecule between sheets of graphene, researchers at the Univ. of Illinois at Chicago have obtained atomic-level images of the molecule in its natural watery environment. Researchers typically rely on relatively thick windows of silicon nitrate to protect specimens in a vacuum environment of an electron microscope, but the atomically-thin graphene sheets promise a major improvement.
While the debate over using crops for fuel continues, scientists are now reporting a new, fast approach to develop biofuel in a way that doesn’t require removing valuable farmland from the food production chain. Their method, which could be employed for other targets, uses atomic force microscopy and a tunable laser source to examine the fuel-producing potential of a soil bacterium known for making antibiotics.
Individual silver nanoparticles in solutions typically grow through single atom attachment, but when they reach a certain size they can link with other particles, according to a team which includes scientists at Pacific Northwest National Laboratory. This seemingly simple result has shifted a long-held scientific paradigm that did not consider kinetic models when explaining how nanoparticle ensembles formed.
A new microscopy method could enable scientists to generate snapshots of dozens of different biomolecules at once in a single human cell, a team from the Wyss Institute of Biologically Inspired Engineering at Harvard Univ. reported in Nature Methods. Such images could shed light on complex cellular pathways and potentially lead to new ways to diagnose disease, track its prognosis or monitor the effectiveness of therapies at a cell level.
The human intestinal tract, or gut, is best known for its role in digestion. But this collection of organs also plays a prominent role in the immune system. In fact, it is one of the first parts of the body that is attacked in the early stages of an HIV infection. Knowing how the virus infects cells and accumulates in this area is critical to developing new therapies for the over 33 million people worldwide living with HIV.
When capturing images at the atomic scale, even tiny movements of the sample can result in skewed or distorted images. Those movements are virtually impossible to prevent. Now microscopy researchers have developed a new technique that accounts for that movement and eliminates the distortion from the finished product.
Turbine manufacturers have employed special nickel-based high-performance “superalloys” for decades as a way to guarantee turbines maintain their chemical and mechanical properties almost to their melting point. New research shows in detail how new phases in a nickel-based alloy form and evolve during heat treatment, providing clues to how these high-performance alloys could be improved.
The atomic force microscope (AFM) uses a fine-tipped probe to scan surfaces at the atomic scale. But soon, thanks to efforts by scientists in The Netherlands, the AFM will soon be augmented with a new type chemical sensor, one that resembles a microscopic fountain pen. A hollow AFM cantilever acts as the pen, delivering droplets of mercury at the tip, which acts as a chemical sensor.
Tristructural-isotopic (TRISO) fuel particles are viewed as a safer, more efficient next-generation nuclear fuel. A jawbreaker-like combination of different layers act to contain radioactive byproducts within the fuel. However, sometimes the silver bits inside break loose and get out. Researchers working at Idaho National Laboratory have recently discovered where this silver is going, and hope to learn why.
By the time they’re two, most children have had respiratory syncytial virus (RSV) and suffered symptoms no worse than a bad cold. But for some children, RSV can lead to pneumonia and bronchitis. A new imaging technique for studying the structure of the RSV virion and the activity of RSV in living cells could help researchers unlock the secrets of the virus.
Life science researchers regularly use transmission electron microscopy to study wet environments. Now, scientists at Pacific Northwest National Laboratory who are studying batteries have used the method to have applied it successfully to microscopically view electrodes while they are bathed in wet electrolytes, mimicking realistic conditions inside actual batteries.
In 2007 and 2008, two research papers reported in the journal Nature that a suite of zircons from the Jack Hills included diamonds, requiring a radical revision of early Earth history. The papers posited that the diamonds formed, somehow, before the oldest zircons, or more than 4.3 billion years ago. A research team now claims the oldest “diamonds” on the Earth are simply fragments of polishing compound.
Researchers at Purdue Univ. have successfully tested the conversion of large particles of pinewood char in a gasification process, a step necessary for the mass production of synthetic liquid fuel from recalcitrant biomass. The results stemmed from a series of experiments using a new facility at Purdue's Maurice J. Zucrow Laboratories aimed at learning precisely how biomass is broken down in reactors called gasifiers.
At M&M 2013, Indianapolis, ZEISS launched the next generation EVO scanning electron microscope (SEM) series for material and life science applications. Improvements in the SEM’s workflow automation, beam deceleration technology, and HD BSE detector can reduce a workflow from more than 400 steps to just 15.
An international research team, including researchers at the Univ. of Basel in Switzerland was able to observe a strong energy loss caused by friction effects in the vicinity of charge density waves. This could have practical significance for the control of friction at the nanometer level.
Q?rius (pronounced “Curious”) is a new hub of scientific activity and education based at the Smithsonian’s National Museum of Natural History in Washington D.C. The product of a partnership between Olympus and the Smithsonian, the 10,000-square-foot experiential learning center will be equipped with dozens of microscopes and imaging systems that will enable museum visitors more than 6,000 bones, minerals, and fossils.
By using optical techniques, researchers in Switzerland are now able to measure the concentration of the oxidizing substances produced by a damaged cell. This new biosensing technique for toxic agents also offers a new way to know more about the mechanisms of oxidative stress.
Univ. of Oregon chemists studying the structure of ligand-stabilized gold nanoparticles have captured fundamental new insights about their stability. The information, they say, could help to maintain a desired, integral property in nanoparticles used in electronic devices, where stability is important.
Commercially available as instrumentation designed for macro-size sampling, Raman spectroscopy drew interest for providing information similar but complementary to infrared (FTIR) spectroscopy for chemical identification. In addition to chemical fingerprinting, the technique could provide molecular backbone information, materials morphology, sensitivity to symmetric bonds and the ability to analyze inorganic samples and components.
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