Tag: "dot" at biology news
32 new grants made for innovative technology R&D
...an industrial-scale flow-based process for quantum dot
production at significantly increased output and reduced cost. Receptor Logic, Ltd. (Amarillo, Texas) TCR Mimics: A New Class of Antibodies Against HLA-peptide Complexes for Diagnosis and Therapy of Breast CancerDevelop a new class of breast c...
NIH awards Emory and Georgia Tech $10 million for partnerships in cancer nanotechnology
...l be used to develop advanced nanoparticle quantum dot
probes for molecular and cellular imaging. A nanoparticle is the basic building block of nanotechnology. Quantum dots are nanometer-sized luminescent semiconductor crystals that have unique electronic and optical properties due to their size and th...
Evidence that learning is consolidated during sleep
...ely as possible corresponding to the location of a dot
on a computer screen. Thus, the data from the fourth group allowed the researchers to distinguish brain activity changes due to spatial processing from those due to general mental processing. The researchers' comparisons of the brain activity in the ...
NIH awards Georgia Tech/Emory $11.5 M for nano cardiology research
...r size and their highly compact structure. Quantum dot
based probes can act as markers for specific proteins and cells and can be used to study protein-protein interactions in live cells or to detect diseased cells. These ultra-sensitive probes may help cardiologists understand the formation of early sta...
MIT's nanoprinter could mass-produce nano-devices
...ss chip printed with up to 500,000 tiny dots. Each dot
comprises multiple DNA molecules of known sequence, i.e. a piece of an individual's genetic code. Scientists use DNA microarrays to discover and analyze a person's DNA or messenger-RNA genetic code. This allows for, say, the early diagnosis of liver ...
Quantum dots provide a faster, more sensitive method for detecting respiratory viral infections
...ilt researchers report that not only can a quantum dot
system detect the presence of particles of the res...esearchers' next step will be to develop a quantum dot
cocktail capable of simultaneously detecting the presence of at least five major respiratory viruses...
Tagging pathogens with synthetic DNA 'barcodes'
...the color codes of individual beads. Another is by dot
blotting, in which the sample is spread on a sheet of absorbent paper and made visible to the naked eye. Or the color can be observed directly through a fluorescent light microscope, which is useful in situations where the geographic distribution of ...
'Smart' nanoprobes light up disease
...olves tethering a gold nanoparticle to the quantum dot
to inhibit luminescence. The tether, a peptide seq...holds the gold close enough to prevent the quantum dot
from giving off its light. In their test system, the Rice team used a peptide tether that is cleaved...
System drastically cuts down botulism detection time
...ed with a fluorescent dye or a fluorescent quantum dot
binds to a different region on the toxin or pathogen. The fluorescence of the quantum dot
is measured on the bead and can quantify the concentration of the toxin. The BEADS system has been c...
Method slashes quantum dot costs by 80 percent
...d of replacing the pricey solvents used in quantum dot
synthesis with cheaper oils that are commonplace a... than a year ago on the scale-up issues of quantum dot
manufacture, but the solvents turned out to be so expensive that we just couldn't afford to run more...
New nanosensor uses quantum dots to detect DNA
...researchers shined a laser on the mix, the quantum dot
passed the energy on to the Cy5 molecule that was ...inctive glow would not have appeared. Each quantum dot
can connect to up to about 60 DNA sequences, making the combined glow even brighter and easier to se...
Russian River coho recovery project seeing first hopeful signs of success
...n moved to large dome-covered, circular tanks that dot
the hatchery grounds like turquoise and black igloos. Inside the tanks, small schools of silvery adult coho swim against a gently swirling current until they're ready to be harvested for eggs and milt during December. "The circular tanks provide mor...
News tips from the Journal of Neuroscience
...ye movements by following the movements of a black dot
onscreen. The authors report that the human SPS actually consists of two sulci, which they term the ventral and dorsal branches. As in monkey, the visuomotor hand locus was located immediately dorsocaudal to the FEF. 4. Histone Deacetylases and Hunt...
Quantum dot method rapidly identifies bacteria
...ends on particle size. The resulting phage-quantum dot
complexes can be detected and counted using microscopy, spectroscopy or flow cytometry, and the results used to identify the bacteria. The new method could be extended to identify multiple bacterial strains simultaneously by pairing different phages ...
Study may help slay 'Yellow Monster'
...mental exposure to uranium from mine tailings that dot
the landscape across the Navajo Nation. "When the uranium mining boom crashed in the '80s, it really crashed and there wasn't much cleanup," Stearns said. Estimates put the number of abandoned mines on the Navajo Nation at more than 1,100. NAU senio...
Pathway toward gene silencing described in plants
...t a brilliant signal in the nucleolus, a brilliant dot
in the same place for each of the proteins," said ...ontes also found that the siRNAs were in that same dot
within the nucleolus. Pontes and Pikaard were able to deduce the order of events by studying mutatio...
Stem cells get a grip
...progenitor cells with microscopic markers, quantum dot
nanocrystals, and watched as the dots were taken into the cells and delivered specifically to the uropod domain at the point of contact. Interestingly, time-lapse microscopy detected transfer of the quantum dots from the progenitor cells to the osteo...
Nemo comes home with a tag
...he juvenile fish returned to the home reef a tiny dot
in the ocean only 300m across after being carried out to sea as babies. "Just as importantly, 40% of the juveniles came from other reefs that are at least 10 kilometers away, which indicates significant exchange between populations separated by op...
The first issue of the HFSP Journal is now available
...dy of synaptic signaling and remodeling by quantum dot
imaging from Daniel Choquets group. A Commentary from Jonathon Howard and Iva Tolic-Norrelykke from the Max Planck Institute for Cell Biology and Genetics in Dresden, Germany which discusses two recent articles from Franois Ndlecs group which add...
1,000-year-old Arctic ponds disappearing due to global warming
...uring the polar summer. These shallow ponds, which dot
the Arctic landscape, are important indicators of environment change and are especially susceptible to the effects of climate change because of their low water volume. As published in the Proceedings of the National Academy of Sciences (PNAS), Mar...