Tag: "biosensor" at biology news

Researchers create nanotubes that change colors, form 'nanocarpet' and kill bacteria

...molecule would have the desired properties of both biosensor and biocide. Remarkably, in addition to being able...uthor. To test the nanostructure's potential as a biosensor and antimicrobial, the authors conducted studies using the water-based nanotubes. Normally a neutral...

New dye directly reveals activated proteins in living cells

...ournal Science shows for the first time that novel biosensor dyes can directly reveal activation of proteins in individual living cells. The research, led by Dr. Klaus M. Hahn, professor of pharmacology at the University of North Carolina at Chapel Hill's School of Medicine, demonstrated that at least one of t...

Basic RNA enzyme research promises single-molecule biosensors

... funded by NASA, the researchers hope to develop a biosensor that could be sent to Mars to snoop around for amino acids or other signs that life might once have existed on the planet. "These projects are still in the development stage," Walter said. "But the technology we are developing here to ask some fundam...

Testing soil for contamination

...iagnostic problems. "We have already embarked on a biosensor for applications in the food and drug development sectors," says Bell. "EUREKA was a hugely useful initiative for us. Without it, we just could not have accessed the complementary expertise required to deliver the project."...

Biosensor-regulated gene therapy reduces heart attack damage in mice

...arch Institute designed a kind of oxygen-sensitive biosensor that turns on protective genes when signs of oxygen deprivation indicate a heart attack and turns the genes off once blood flow restores adequate oxygen levels to the heart. Dr. Phillips, principal investigator; Yao Liang Tang, MD, lead author; and ...

UT Southwestern researchers reveal mechanisms of smooth-muscle contraction

...ered a mouse containing a fluorescent molecule, or biosensor that directly monitors the calcium/calmodulin acti...emonstrate the feasibility of producing transgenic biosensor mice for investigations of signaling processes in intact systems," Dr. Stull said....

UC San Diego faculty receive funding from von Liebig Center to commercialize academic research

...ity, and adhesion. Chien and Wang have developed a biosensor capable of detecting kinase activity in live cells...reliminary experiments have demonstrated that this biosensor reports kinase activity with high degrees of specificity and sensitivity. With the von Liebig grant,...

Imaging technique discovered at Stanford monitors cancer cell proliferation

...called total internal reflection fluorescence, the biosensor glows when the nuclear membrane breaks down, passe...in the nuclear envelope of newly formed cells, the biosensor moves back into the reformed nucleus and there is no fluorescence. The effect is like a light switch...

Saliva spits out information on chemical exposure

...with little training. "We have demonstrated that a biosensor linked to a hand-held electrochemical detector can...e Lin, a Battelle analytical chemist at PNNL. "The biosensor consists of electrodes coated with carbon nanotubes. The carbon nantotubes hold the enzymes, which a...

JCI table of contents, July 1 2003

...udapest has facilitated the development of a novel biosensor tool to measure prostaglandin E2 (PGE2) release from the MD. The study provides the first direct evidence that intact MD cells synthesize and release PGE2 during reduced luminal salt content and suggest that this response is important in the control ...

UC Riverside research featured on the cover of JALA

...e Bourns College of Engineering at UC Riverside. A biosensor is a device involving a biological sensing element that converts a change in an immediate environment to signals that can then be processed. Biosensors have been used for a number of applications ranging from environmental pollution detection to def...

Gold nanoparticles and catalytic DNA produce colormetric lead sensor

...gn have developed a highly sensitive and selective biosensor that functions in much the same fashion as a strip...ution to a substrate, the researchers can create a biosensor that functions in the same manner as litmus paper. "These simple colorimetric sensors eliminate the ...

Carnegie Mellon University research story ideas on DNA

... used in the human genome project. His well-known biosensor research runs the gamut from detection of life in hostile or remote settings (the desert or Mars, for instance) to the use of biosensors for sensitive detection of molecules in biomedical settings or the detection of specific biological and chemical ...

Carnegie Mellon scientists create unique DNA probe with great potential

...s providing a new compound that could be used as a biosensor or to block gene activity associated with diseases such as cancer. The research results, published online, will appear in a forthcoming issue of the Journal of the American Chemical Society ( http://pubs.acs.org/cgi-bin/asap.cgi/jacsat/asap/html/ja02...

Miniature implantable sensor likely lifesaver for patients

...quire additional evaluation. Other efforts include biosensor optimization, design of low-power highly miniaturized signal processing and telemetry electronics, and development of encapsulation techniques. Once they have made sufficient progress in these areas, the research team plans to conduct additional tes...

Biosensor research expands globally to reach a variety of key industries

...cal agents. Universities conduct the majority of biosensor research, most often with government support, whic... Private companies provide the third pillar in the biosensor alliance, commercializing and marketing these devices that measure biological phenomena. Biosensors...

Tips from the Journals of the American Society for Microbiology

...vy metals. According to the researchers, this new biosensor is simpler, more rapid, more accurate and more economical than other methods. "This biosensor is expected to provide new opportunities for the rapid screening of environmental samples or for the...

Clemson researchers create biosensors to protect nation's food and water supplies

...t Clemson University, researchers are developing a biosensor that will make contaminated food glow in the dark. A team of chemists, microbiologists and food scientists have devised a way to tether luminescent molecules to food pathogens, such as E.coli, and Salmonella. Using nanotechnology, the researchers ar...

Stanford scientist seeks participants in NASA hypergravity study

...passenger will be fitted with a specially designed biosensor vest to measure his heart rate, blood pressure and oxygen levels. Urine samples will be collected and analyzed at a later date. NASA warns that in addition to motion sickness, participants may experience a number of ``inconveniences, discomforts and ...

Carnegie Mellon University receives $1 million to create biosensor tool kit

...on University $1 million to begin development of a biosensor tool kit that will enable scientists to more fully understand cellular activity as it occurs in living organisms. The tools to be developed include an array of optical probes and sensing devices that can be used to detect the different states and...

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