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Tag: "mass" at biology news

Silver bullet: UGA researchers use laser, nanotechnology to rapidly detect viruses

...del, seeking venture capital and exploring ways to mass produce the silver nanorods. Next year, they plan on moving their enterprise to the Georgia BioBusiness Center, an UGA incubator for startup bio-science companies. Presently, viruses are first diagnosed with methods that detect the antibodies a pe...

High-throughput oncogene mutation detection in human cancers by mass spectrometry-based genotyping

...updated methods." The method uses high-throughput mass spectrometry-based genotyping, which is a sensitiv...hat over 92 percent of mutations identified by the mass spectrometry method were validated in this manner, and believe that much of the difference is due no...

Key gene controlling kidney development found

...om running out of stem cells and collapsing into a mass of underdeveloped tissue," said Guillermo Oliver, ...number of nephrons that in turn produced a useless mass of tissue. Furthermore, the remaining precursor cells underwent apoptosis (cell suicide), further de...

'Best of both worlds' -- Targeting a single gene could inhibit bone decay and stimulate bone growth

...0d2 in mice results in dramatically increased bone mass due to defective osteoclasts as well as enhanced bone formation. These findings may provide some clarity into the regulation of bone metabolism and show that targeting the function of a single gene could possibly inhibit bone decay while stimulating ...

Sports cheats beware -- new test detects previously undetectable drug

...ther two-stage test ?chromatography separation and mass spectrometric analysis. This lets scientists produce a chemical fingerprint of the molecule ?a fingerprint that uniquely identifies it. "If the drug testing authorities adopt this new test it will close a gap in the current drug testing system, an...

Ocean seep mollusks may share evolutionary history with other deep-sea creatures

...afe harbors for the mollusks, protecting them from mass extinctions and possible abrupt oxygen changes in ...e, Kiel and Little also found little evidence that mass extinction events or periods of low oxygen dealt significant blows to the seep communities. Seeps ma...

Virus may control Australia's

...us, which first emerged in Israel in 1998*, caused mass mortalities in carp in the US, the UK, Israel, the Netherlands, Japan and Indonesia. So far the virus does not appear to have reached Australia. Supported with $355,000 from the newly formed Invasive Animals Cooperative Research Centre and the Murra...

One signal elicits thousands of answers

... divided into different fractions and analysed via mass spectrometry. This technology allows the precise identification of structure and composition of unknown compounds, here the cellular proteins. In total, 6,600 specific phosphorylation sites in 2,244 proteins were detected. "Comparing our results with...

Archerfish tune their shots to universal properties of prey adhesion

...ne the force of their water shots by adjusting the mass of water in a shot, rather than altering the initi... efficient way of adjusting force--by doubling the mass of water shot, the fish double the force that is applied to prey in a way that only doubles the ener...

Selecting life: Scientists find new way to search for origin of life

...ace-bound molecules and topmost mineral layer. The mass spectrometer allows the researchers to determine what's there. "ToF-SIMS will also allow us to detect the organic molecules that bind most strongly to mineral surfaces," commented Hazen. "In many ways, Hazen's approach cuts to the chase of addres...

Rearing an army to save wheat

...is inefficient, and having the ability to reliably mass produce these organisms would be an asset. Even a slight increase in efficiency could translate into the ability to produce thousands of additional parasitic wasps, which could then be distributed to wheat stem sawfly infested sites. Pallippara...

New technique boosts size of proteins that can be analyzed

...Called a "top-down" approach, the technique uses a mass spectrometer, which measures the masses of ions or... they can identify the protein. Any differences in mass with known proteins can help researchers also find where and how proteins have been modified in cell...

A buffet for early human relatives

...y samples of enamel, which then were analyzed in a mass spectrometer to determine the ratio of rare carbon... carbon dioxide gas, which then is analyzed by the mass spectrometer. Your Teeth are What You Eat If the sample has a relatively high ratio of carb...

Fantastic Voyage: A new nanoscale view of the biological world

... describe the development of multi-isotope imaging mass spectrometry (MIMS), which has applications in all...sms manipulate visible light - to create an atomic mass image of the sample. Lechene et al. developed MIMS by combining the use of a novel secondary-ion mas...

Weighty viruses

...e. Once trapped, the virus particles are ready for mass determination. Laser light is beamed into the ion ...gins to oscillate. This oscillation depends on the mass (and charge) of the virus. The team was thus able to determine the masses of three different type...

NASA satellite data helps assess the health of Florida's coral reef

... of coral off the Florida Keys died after a single mass bleaching. Other factors that influence the health of coral reefs include rising sea levels, powerful storms, pollution, coastal development, overfishing and other human activity that focus impacts on the reefs. "There appear to be more stressors t...

Underweight women at greater risk of miscarriage

Women who have a low body mass index before they become pregnant are 72% more likely to suffer a miscarriage in the first three months of pregnancy, but can reduce their risk significantly by taking supplements and eating fresh fruit and vegetables, according to study findings pub...

Math model predicts cancer behavior

...nd cancer cells ?begins to "grow," morphing into a mass with finger-like projections that looks like an invasive tumor. The Vanderbilt professor of cancer biology envisions a future when computer simulations like this will be used to predict a tumor's clinical progression and formulate individualized tre...

Record ozone loss during 2006 over South Pole

...ng the southern hemisphere winter, the atmospheric mass above the Antarctic continent is kept cut off from exchanges with mid-latitude air by prevailing winds known as the polar vortex. This leads to very low temperatures, and in the cold and continuous darkness of this season, polar stratospheric clouds ...

Proteins may predict lung transplant rejection

... proteomics (the study of proteins), the latest in mass spectrometry technology and the best analytical methods from the field of bioinformatics (the use of computers and statistics to analyze and find patterns in scads of data). They hypothesized that proteins would change as chronic lung rejection devel...

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