Tag: "glow" at biology news

Brightening prospects of using fluorescent nanotubes in medical applications

...ndividual nanotubes are fluorescent. That is, they glow when they are bathed in light. Some glow brightly. Others glow dimly. Some glow in spots. Others glow all over. Until now, this property ha...

In young mice, gregariousness seems to reside in the genes

...thor of the new study. Performing under the dim glow of red lights to simulate the nocturnal environment when mice are most active, the sociability of test mice was assessed when they were reunited with their former cage mates. At the same time, the researchers tuned in to the ultrasonic chattering tha...

Researchers develop marker that identifies energy-producing centers in nerve cells

A protein that causes coral to glow is helping researchers at the University of Maryla.... These structures light up with a greenish-yellow glow when the scientists look at the brains of these mice through a fluorescent microscope. The researche...

OHSU researchers demonstrate how white blood cells cannibalize virus-infected cells

...s when they noticed that the T-cells also began to glow with the fluorescent dye. Further investigation revealed that the CD8+ T-cells, often referred to as "killer" T-cells, were literally ingesting parts of the virus-infected cells that they were attacking. Slifka and Beadling's findings follow a di...

Living view in animals shows how cells decide to make proteins

... its FGFR2 gene a green fluorescent tag that would glow when a common type of silencer, called an "intronic silencer," chopped out a specific exon, called IIIb. In this way, the scientists could track whether intronic silencers were chopping out the IIIb exon -- and if so, in which tissues and organs -...

Compound eyes, evolutionary ties

...otein in the compound eyes of the fruit fly (which glow at center due to a fluorescent protein) allows the formation of distinct light gathering units in each of its 800 unit eyes, an evolutionary change to an "open system" that enabled insects to make significant improvements in visual acuity and angular...

New light microscope sharpens scientists' focus

...a cluster of labeled molecules appears as a merged glow that cannot be decomposed into individual sources....nology would enable the scientists to separate the glow of labeled proteins inside a cell into individual components, similar to what they had done in their...

UT Southwestern researchers find gene mutation that leads to 'broken hearts'

..."We engineered a fruit fly so that the heart would glow in the dark and found a new type of malformation, ...ern scientists engineered fruit flies whose hearts glow by expressing a gene coding for green fluorescent protein specifically in the heart. "This fly with ...

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

... changes the shape of the biosensor, causing it to glow green instead. Manipulating the sensor allows the researchers to direct it to specific locales within cells. That allows the researchers to see where in the cell the active enzyme is located. So this PKA sensor not only indicates whether the enzym...

Sandia work launched on space shuttle shows live cells influence growth of nanostructures

... in cell death. Thus, the yeast can be modified to glow fluoresecent green when they contact a harmful chemical or biotoxin. Because such nanostructures are cheap, extremely light and small, and easy to make, they could conceivably be attached to insects and their emanations read remotely by beams from ...

'Shuttling' protein possibly key to resilience of cancer cells

...nt-protein fragments are reunited, causing them to glow green when illuminated with a light source. The fluorescence enabled the researchers to pinpoint the location of c-Jun-ATF2 heterodimers and discover the shuttling movements of ATF2. The ATF2 protein also has been found in the cytoplasm of diseased b...

Mice with glowing hearts shed light on how hearts develop

...hers have genetically engineered mice whose hearts glow with a green light every time they beat. The devel...rived from bioluminescent jellyfish) and making it glow brightly enough to be observed in the working heart. Calcium turns the sensor molecule off and on ...

Strawberries by design

... to gene transfer using A. tumefaciens. Since they glow green under fluorescent light due to the presence of Green Fluorescent Protein (GFP), transformed strawberry plants may be easily identified by visual inspection. This is the first time that GFP has been used in strawberry as a visually selectable ma...

Sea coral's trick helps scientists tag proteins

The glow emitted by a variety of sea coral helped Russian s...or GFP-like proteins in corals because they do not glow in the dark like fireflies and jellyfish. The corals' native green and red fluorescent proteins give...

'Virus chip' detects new virus in prostate tumors

...laser microscope. The dots that have found a match glow with fluorescent light. ...

New nanosensor uses quantum dots to detect DNA

...nearby molecule, which in turn emits a fluorescent glow that is visible under a microscope. But quantum d...ould not have joined together, and the distinctive glow would not have appeared. Each quantum dot can connect to up to about 60 DNA sequences, making the co...

New neurons take baby steps in the adult brain

...anipulate their response to GABA) and to make them glow with a green protein to ease their identification in the adult brain. Ge measured the electrical output of the neurons to establish whether they had become connected to other neurons. "Getting new neurons to form connections in other parts of the b...

The right drug at the right time

...and re-emit them as photons of visible light. They glow different colors, depending on the size, shifting from the red to the blue end of the spectrum as the crystals get smaller. The reproducible synthesis of high-quality quantum dots became a reality in the early 1990s when researchers at MIT pioneere...

Method slashes quantum dot costs by 80 percent

...and re-emit them as photons of visible light. They glow different colors, depending on the size, shifting from the red to the blue end of the spectrum as the crystals get smaller. The reproducible synthesis of high-quality quantum dots became a reality in the early 1990s when researchers at MIT pioneere...

New tool reveals secrets of migrating cells

... then hitting them with a laser that makes the dye glow and the cells light up. A certain energy or color of laser light is needed to make the dye, in this case green fluorescent protein, glow. But high-frequency, short-wavelength visible light, like green, doesn't penetrate tissue as deeply as longer, re...

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