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Tag: "biosensor" at biology news

Study shows nanoshells ideal as chemical nanosensors

... vastly enhance the Ramaneffect opens the door for biosensor designs that use a singlenanoshell, something that could prove useful for engineers who aretrying to probe the chemical processes within small structures such asindividual cells, or for the detection of very small amounts of amaterial, like a few mol...

Bioelectronic ‘signatures?hold key to DNA mutations

...vement in the development of the first noninvasive biosensor for diabetes, the FDA approved Gluco Watch, which monitors glucose levels through human sweat. “The ultimate goal is to make something similar to a hand-held glucose monitor for future genetic testing,?Wang says. “The electronic detection of DNA is ...

Aptamer-based Biosensor screens Air Force personnel and equipment

...and a national laboratory. Personnel will use the biosensor system to collect and isolate samples, detect and ...llow dots, and a high detection level is red. The biosensor system is designed to be reliable, disposable and cost-effective. The Air Force will continue testin...

New technique rapidly detects illness-causing bacteria

...s, including Escherichia coli (E. coli ). The new biosensor works in a test tube and a positive result shows up as a red line on a strip, much like a pregnancy test. Newly designed software gives researchers a powerful tool for increasing the sensitivity of the analysis. The method may help researchers and c...

UT Southwestern researchers develop screening test for cells that activate immune system

...researchers in dermatology, created the cell-based biosensor system. "We basically engineered DCs to express a...infection and cancer," said Dr. Takashima. The DC biosensor system should help pharmaceutical and biotech companies sift through large numbers of chemicals for ...

A biosensor layered like lasagna

...sion of the glucose. Now that the glucose enzyme biosensor has passed the test, Lin said, it should be possible to build a similar sensor using other enzymes that react specifically with other biological chemicals, environmental agents or even microbes and their toxic byproducts. Lin and colleagues also repo...

Hopkins researchers develop new tool to watch real-time chemical activity in cells

...icals at once. What Zhang's team developed is a biosensor and simple testing procedure that tells if a parti...the course of their work, the team built a protein biosensor that indicates if an enzyme located nearby is turned on or off. The sensor is made from a protein th...

Smell of success for nanobiosensors

...noses respond to different odours. This new nose biosensor is unusual in how it's made. By placing a layer of proteins that constitute the olfactory receptors in animal noses on a microelectrode and measuring the reaction when the proteins come into contact with different odorants, the system is capable of d...

Immune cell communication key to hunting viruses, Jefferson immunologists show

... T-cells, Dr. Sykulev and his co-workers created a biosensor out of semiconductor nanoparticles called quantum ... recognizing the viral-MHC complex, the control ?a biosensor that carried the same MHC protein with a different peptide not recognized by the T- cells ?unexpect...

Cardiologist's 'living chip' changes science of disease monitoring

...art of the miniature electronic chip. The wireless biosensor is placed within and around blood vessels and nerv...For a patient with heart failure, for example, the biosensor could detect a change in blood protein levels at an early stage, prompting the physician to alter me...

Bacterial response to oxidation studied as toxin barometer

...xins that cause oxidative stress show promise as a biosensor to predict public health threats. At the 233rd Am...dicine (VCOM) will report their work on a bacteria biosensor prototype and correlations to brain tissue damage. Many environmental toxins in water, such as pe...

Cornell researcher helping develop quick, cheap HIV/AIDS test

...lood that can be likened to a pregnancy test using biosensor nanovesicles (microscopic, fluid-filled pouches made of phospholipids that can deliver drugs -- also known as liposomes) to enhance the signal. Several other consortium organizations also are working on the similar product development so that the bes...

Instruction manual for creating a molecular nose

...ose could be a real benefit at times: this kind of biosensor could sniff out poisons, explosives or drugs, for instance. Researchers at the Max Planck Institute for Polymer Research and the Max Planck Institute of Biochemistry recently revealed a technique for integrating membrane proteins into artificial stru...

A new portable biosensor detects traces of contaminants in food more quickly and cheaply

...th the CSIC, have developed a new electro-chemical biosensor which detects the presence, in food, of very small...e environment- as well as antibiotics in food. The biosensor is faster, more portable and economic than the expensive laboratory methods which are used to detect...

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