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Tag: "built" at biology news

DNA Molecules Used To Assemble Nanoparticles

...edical Engineering graduate student Youngseon Choi built nanoparticle clusters of two different functional dendrimers, one designed for imaging and the other for targeting cancer cells. Each of the dendrimers also carried a single-stranded, non-coding DNA synthesized by Choi. In a solution of two differen...

Yellowstone microbes fueled by hydrogen, according to U. of Colorado study

...id.Not so, according to the team's computer models built on fieldmeasurements of hydrogen, sulfide, dissolved oxygen concentration andother factors.Spear said it was difficult to explore a microbial ecosystem. "We havea hard enough time explaining what's going on in a forest, for example,with all the inter...

Growth in the sea comes down to a struggle for iron

...up iron. And in many cases, only the organism that built the molecule in the first place has the key to unlock it, says Wells. "It's basically chemical warfare by the bacteria in soils, trying to get the iron. They specifically target iron with these molecules. Siderophores don't complex other metals very...

UW's Rosetta software to unlock secrets of many human proteins

... than a year.IBM's World Community Grid, which was built using grid technologydeveloped by United Devices, will enable millions of people tovolunteer their personal computers to run Rosetta during periods ofcomputer downtime.The information will be entered into a publicly accessible database,which scientis...

Researchers find how protein allows insects to detect and respond to pheromones

... than a year.IBM's World Community Grid, which was built using grid technologydeveloped by United Devices, will enable millions of people tovolunteer their personal computers to run Rosetta during periods ofcomputer downtime.The information will be entered into a publicly accessible database,which scientis...

Color-blind method opens new doors in DNA sequencing

...he imaging is very clean." Metzker said, "We have built a highly sensitive instrument for the measuring of fluorescence, because PME gives brighter signals and collects more of that signal by eliminating the need for a prism to separate the light into colors." Metzker is also seeking to develop a chip-ba...

Purdue proves concept of using nano-materials for drug discovery

Researchers at Purdue University have built and demonstrated a prototype for a new class of miniature devices to study synthetic cell membranes in an effort to speed the discovery of new drugs for a variety of diseases, including cancer. The researchers created a chip about one centimeter squ...

Gene Vaccine Protects Mice Against Development Of Her2/neu Breast Cancer

...two additional safetyconsiderations “because it is built of RNA that cannot insert itselfinto the genome, and the possibility of autoimmunity to it appears tobe low, because normal cells express very small amounts of the HER2/neugrowth protein.?...

A comprehensive response to HIV could prevent 10 million AIDS deaths in Africa by 2020

...two additional safetyconsiderations “because it is built of RNA that cannot insert itselfinto the genome, and the possibility of autoimmunity to it appears tobe low, because normal cells express very small amounts of the HER2/neugrowth protein.?...

An entropy-based gene selection method for cancer classification using microarray data

...large extent. This implies that classifiers can be built with a smaller subset of genes. ...

Ice core 'dipstick' indicates West Antarctic ice has thinned less than believed

... data have shown that, in the ice age, glacial ice built to quite high elevations in the mountains just inland from the Ross Ice Shelf. That led to the expectation that Siple Dome had to be substantially thicker than it is now as the ice moved from the mountains to the ice shelf. But the new study shows th...

Tiny scaffolding allows stem cells to become working fat cells

...both postdoctoral fellows in his laboratory, Kniss built a fabric-like carpet of polyethylene terephathalene (PET), or Dacron, fibers that served as scaffolding upon which new fat cells were grown. In conventional cell cultures, cells usually grow as flat deposits bathed in growth medium. While useful, th...

Agilent Technologies releases automated literature search tool for biology researchers

...logy informatics prototypes, Labs researchers have built qualitative biological models based on experimental data, scientific knowledge from published papers and curated biological network databases. This shared, multi-disciplinary knowledge provides a more comprehensive view of disease. Availability Cyt...

X-Ray Beams And Fruit Fly 'Flight Simulator' Aid Scientists' View Of Muscle Power

...and Model Facility (IMF), directed by Tobey Clark, built a rotating shutter used in the earlier experiment. IMF scientists Carl Silver and Gill Gianetti fabricated the high-speed device. “How the fly’s muscles turn off and on at 200 times a second has been a mystery that we now can solve in detail using t...

Sexual cooperation: Mating increases longevity in ant queens

...ony growth, during which a sterile worker force is built up in the population. The fact that mates bond so early reduces the conflict between mating partners because both sexes benefit from the queen experiencing a long reproductive phase after the colony reaches sexual maturity. ...

Researchers develop rapid diagnostic tool for pathogen identification

...need for highly sensitive diagnostics, researchers built on an established method known as polymerase chain reaction that allows amplification of genetic sequences and on a technology previously used for DNA sequencing and detection of genetic polymorphisms. Genetic probes for pathogens were coupled to mar...

Programmable cells: Engineer turns bacteria into living computers

... things about synthetic biology is that because we built the network from scratch, we should be able to model all the important details," he said. At some point in the future, he said, scientists will be able to choose a behavior they want from cells, and a computer program will create a genetic circuit to...

Researchers find new genes necessary to make embryo

... findings also probe into how genetic networks are built and how they could evolve. The team, headed by biologists at NYU, is studying the genome of the Caenorhabditis elegans (C. elegans), the first animal species whose genome was completely sequenced and a model organism to study how embryos develop. Us...

Love's all in the brain: fMRI study shows strong, lateralized reward, not sex, drive

...lbert Einstein College of Medicine. "We humans are built to experience magical feelings like love, but our findings don't diminish the magic in any way. In fact, for some, it enhances the experience. Our research also helps to explain why a person in love feels 'driven' to win their beloved, amidst a whole...

Some Brain Cells 'Change Channels' To Fine-tune The Message

... a channel made of proteins called AMPA receptors, built from subunits called GluR3 and GluR4, is usually found at the synapse. If the cells are shocked with an electric current, within minutes the channels are replaced by ones made of GluR2 and GluR3. After the swap, sodium can still get in, but calcium i...

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