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Tag: "sensor" at biology news

Scientists develop new color-coded test for protein folding

... "What we've developed is a simple and inexpensive sensor for determining when a protein changes its conform...epartment of Chemistry. According to Zare, the new sensor may eventually provide biomedical researchers a fast, affordable method for detecting antibodies and...

Development of portable infectious disease detector

...of Chemistry David Cliffel, is thedevelopment of a sensor suite capable of simultaneously measuring theconce...nderbilt researchers have furtherminiaturized this sensor technology to record rapid changes in themetabolism and signaling of individual cells. To handle suc...

New online portal merges vast data on Gulf of Maine ecosystem

...wn by leaps and bounds as a result of computer and sensor technology, valuable collections of biological, oceanographic and geologic data from public and private institutions have, in large part, remained in isolation from each other. For the first time, the Dynamic Atlas brings this information together in...

Polymers with copper show promise for implanted sensors

...the accuracy of the sensors and fewer clots on the sensor surfaces when we use nitric oxide-releasing polyme...e stored and released from the thin coating on the sensor surface. The new approach is to make polymers that generate nitric oxide from compounds called nitr...

Multi-purpose protein regulates new protein synthesis and immune cell development

... Zhang says. "This is the first indication that a sensor for protein folding in the endoplasmic reticulum can also signal the nucleus to regulate gene rearrangements required for B cell differentiation," Kaufman says. "It's a completely unexpected observation. Learning more about the IRE1 signaling pathway...

Light therapy may combat fungal infections, new evidence suggests

...ungal lineage, an indication that the fungal light sensor arose early in evolution and may be shared by many extant fungal species. Other well-studied fungi, such as Saccharomyces cerevisiae, or baker's yeast, have apparently lost their ability to sense light, Heitman said, and have neither of the conserved...

Disease diagnosis, biodefense among UH chemical research projects

...es on the preparation of nanometer-sized arrays of sensor molecules that are relevant to early-stage disease diagnosis, when treatment is still an option. Cai also is an author on four other papers that will be presented at the ACS meeting. # Dar-Chone Chow, assistant professor of chemistry, will discuss "...

Revolutionary nanotechnology illuminates brain cells at work

...the substance of interest binds to the sensor, the sensor backbone becomes reoriented, and the reorientation...ave as if they move away from one another when the sensor recognizes glutamate. Thus, there is more cyan and less yellow light than in the absence of glutamat...

Duke engineers develop new 3-D cardiac imaging probe

...d array of 504 individual ultrasound sensors. Each sensor is as wide as a few human hairs. "It took a craftsman to create this probe," said Smith. "Not many graduate students could have done what Chris Pua has done." "Maintaining the size of normal TE probes was a main factor in the design since 3-D imagin...

New miniaturised chip dramatically reduces time taken for DNA analysis

...obe, creating a measurable electrical current. The sensor converts this current into a signal that can be se...agents such as Campylobacter and Listeria, and the sensor could easily be adapted for use in medicine, environmental monitoring and the industrial sector. Ot...

Woods Hole Research Center plans controlled burn in Amazon rainforest

...h be easily seen, however, using the Hyperion EO-1 sensor data. Our hope is that these studies will allow us to better monitor forest fire from space and, eventually, to determine which forests are most susceptible to fire during the dry season." The "savannization experiment" is a learning laboratory for ...

MERIS monitoring tracks planetary photosynthesis levels

...ly multispectral observations from Envisat's MERIS sensor are being combined with a sophisticated processing algorithm and powerful Grid computing to reveal global photosynthesis activity on land. This permits researchers to trace the state of health of terrestrial plant cover, identifying areas under stres...

Researchers Create DNA-Based Sensors for Nano-Tongues and Nano-Noses

...sive detection systems in almost any location. The sensor surface is also self-regenerating, with each sensor lasting for more than 50 exposures to the targeted substances, which means they would not need to be...

Sensor web simulation investigates technique to improve prediction of pollution across the globe

...mation about an event as it unfolds over time. The sensor web system is able to react by making new, targete... then dispersed over large metropolitan areas. The sensor web has the potential to improve the response time of our observing systems by reconfiguring their s...

Student scientists create living bacterial photographs

...ll surface. They hooked the light receptor up to a sensor in E. coli that normally senses salt concentration. Instead of sensing salt, the bacteria could sense light. The light receptor was then connected to a system in the bacteria that makes pigments. When light strikes the new receptor, it turns off a g...

NRL scientists detect 'milky sea' phenomena

...n. To achieve nighttime detection, the OLS uses a sensor capable of registering extremely low levels of visible light. This system has been used to detect terrestrial and atmospheric emission sources such as fires, lightning, and human activity (city lights, fishing boats, etc.) around the world. However, ...

Cyberkinetics, Case to develop system to help restore extremity function

...pilot clinical trials that consists of an internal sensor to detect brain cell activity and external process...ediated output under the person's own control. The sensor is a tiny silicon chip about the size of a baby aspirin with one hundred electrodes, each thinner th...

Bacteria which sense the Earth's magnetic field

... number. But the sensitivity of the magnetic field sensor function was disrupted; the cells could only orient themselves weakly in the magnetic field. Inspection by an electron microscope showed that the mutants' magnetosome crystals did not build a perfectly organised linear chain -- as the wild type's did...

Health of coral reefs detected from orbit

Australian researchers have found Envisat's MERIS sensor can detect coral bleaching down to ten metres deep. This means Envisat could potentially monitor impacted coral reefs worldwide on a twice-weekly basis. Coral bleaching happens when symbiotic algae living in symbiosis with living coral polyps (and p...

Cheap, rapid hand-held check for HIV

...sities believe they have the solution: a hand-held sensor that checks the health of a patient's immune syste...Witwatersrand in Johannesburg, South Africa. The sensor measures the quantity of key immune cells called CD4+ cells in the blood. A gradual depletion of CD4...

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