It's very important to get the 4 C's (carat, clarity, color, and cut) in writing, as well as any other features such
as fluorescence.
Diamonds will be compared according to the Four Cs — cut, color, clarity, and carat weight — as well as additional criteria such
as fluorescence, polish and symmetry, table and depth percentage, etc..
Rhodamine 101 in ethanol was used
as fluorescence quantum yield standard for both excitation conditions.
SYPRO Orange (Molecular Probes) was added
as a fluorescence probe at a dilution of 1:1000.
Rather than try to directly detect your gene of interest, scientists have instead developed novel methods to co-express your gene along with a reporter, such
as a fluorescence gene or a resistance gene.
Values were reported
as fluorescence intensity unit (FIU).
The facility collaborates with various research projects using flow cytometric techniques to isolate and purify cells and chromosomes for structural and functional studies, sequencing, microarrays as well
as fluorescence insitu hybridisation (FISH) experiment.
Accurately labelling neurons with markers such
as fluorescence, he says, will probably be the key challenge in the eventual goal of creating a «census» of different cell types in the brain.
The researchers began by creating large membrane models with embedded and dyed channel proteins; they then put them on a glass surface and measured them using a single - molecule measuring method known
as fluorescence correlation spectroscopy.
An antibody that works well for Western blots on denaturing gels, for example, should not be presumed to work equally well in nondenaturing assays such
as fluorescence - activated cell sorting.
It turns out that many molecules found in foods absorb ultraviolet or visible light and subsequently emit light
as fluorescence.
After taking steps to rule out possible contamination from more mundane mechanisms, such
as fluorescence, the group concluded that the photons appeared to be spontaneously produced from the same physics underlying Hawking radiation.
Not exact matches
Heat tolerance in food legumes
as evaluated by cell membrane thermostability and chlorophyll
fluorescence techniques.
A rapid and inexpensive
fluorescence method for screening conditions that affect protein thermal stability, such
as protein mutations, ligand binding, and buffer formulations (like pH, salts, detergents, and other additives).
Called SIF - seq, for site - specific integration
fluorescence - activated cell sorting followed by sequencing, this new technique complements existing genomic tools, such
as ChIP - seq (chromatin immunoprecipitation followed by sequencing), and offers some additional benefits.
«We just drop her there and leave,» says Wettergreen, who describes Zoe
as a giant
fluorescence - imaging camera that searches the desert soil for microorganisms.
Omega - 3 fatty acid DHA transporter protein Mfsd2a is shown here
as red
fluorescence along mouse brain capillaries.
As predicted by the computational study, a dramatic change in color and
fluorescence of the solution was observed; its color and
fluorescence changed from yellow to colorless, and from non-fluorescent to blue fluorescent respectively.
He adds that
fluorescence might have other functions, such
as warning predators of the scorpions» venom.
Casadio's team used a variety of techniques to determine the palettes, including conventional methods like investigation with stereo microscopes
as well
as more sophisticated techniques like micro-X-ray
fluorescence.
Using
fluorescence inside living cells
as well
as biochemistry, they showed that SMN promotes an interaction between the «zipcode» region of a test RNA and a transport protein.
Among the samples studied, healthy coral had on average 1.2 times
as much
fluorescence area
as diseased fragments.
Like turning the knob on a radio, the team adjusted the pulse so that, if the artificial horizon emitted any Hawking radiation, its wavelength would be between 800 and 900 nanometers, a range that could not be confused with other sources such
as laser - induced
fluorescence.
Acquiring images using modern techniques such
as light sheet
fluorescence, confocal, or electron microscopy creates a significant data stream.
These results establish single - molecule
fluorescence as a powerful tool for examining RNA folding.
The remaining 10 percent of obsidian tools —
as determined by x-ray
fluorescence studies at the University at Albany — came from at least 10 other geological sources scattered throughout central Mexico.
When they inserted a fluorescent reporter protein in this virus - like shell, their test became capable of high - speed screening to see which drugs blocked the entry of Ebola - like viral particles into cells
as measured by
fluorescence.
During the past 10 years, they gained significant experience in quantitative Western blotting by testing a variety of commercial systems for dual - color chromogenic and
fluorescence detection
as well
as relative and absolute protein quantitation.
And its ability to show the shape of dendrites and trace neuronal processes provides contextual information unavailable through imaging techniques such
as electron microscopy,
fluorescence microscopy, and magnetic resonance imaging (MRI).
Learn how different detection technologies such
as chemiluminescence and
fluorescence can affect the quality of immunoblotting data
Fluorescent dyes, which are frequently used
as markers in biological experiments, are particularly hard to detect in Raman spectroscopy because the
fluorescence tends to wash out the signal.
«It's the same process
as for single cell genomics, but for aggregates of symbiotic bacteria and archaea,» said DOE JGI Microscale Applications Group head Rex Malmstrom of the technique called BONCAT - FACS (BONCAT —
Fluorescence - Activated Cell Sorting).
The researchers» investigations into fish biofluorescence began with a serendipitous observation of green eel
fluorescence off of Little Cayman Island
as Sparks and Gruber were imaging coral biofluorescence for an exhibit for the traveling American Museum of Natural History exhibition Creatures of Light: Nature's Bioluminescence.
Fluorescence is increasingly being touted
as the future of clinical imaging due to its selectivity.
«We use
fluorescence as an example, and this can let people know you are running in the dark.
In
fluorescence microscopy, certain specimens, such
as TB bacteria, can be dyed so that they emit light when exposed to ultraviolet radiation.
The
Fluorescence Explorer, or FLEX, was endorsed
as ESA's next Earth Explorers mission by the agency's Earth Science Advisory Committee, following a user consultation meeting held last week in Krakow, Poland.
Lead author Nigel D'Souza, then a postdoctoral researcher at Lamont, discovered the phytoplankton response to oil seeps while on a ship in the Gulf of Mexico monitoring chlorophyll
fluorescence — energy that is emitted
as light by compounds inside phytoplankton cells used for photosynthesis.
«Precise measurement of the solar - induced chlorophyll
fluorescence, derived from OCO - 2 — but also from follow - on missions such
as the European Sentinel - 5P, which will be launched coincidentally now on October 13th — enables scientists to quantify gross primary production and its contribution to the global carbon cycle,» says Guanter.
The unique platform, which is referred
as a «4D microscope,» combines the sensitivity and high time - resolution of phase imaging with the specificity and high spatial resolution of
fluorescence microscopy.
The notable differences in
fluorescence intensity observed between normal cells and cancer cells,
as well
as different cancer types, provide important points of differentiation between different cell types and make these probes promising tools for cancer detection and diagnostics.
We can observe the molecule
as we pull on it by staining the DNA vvith dye molecules, illuminating the dye with green light from an argon laser and detecting the
fluorescence with a sensitive video camera.
Strontium atoms
fluorescence strongly when excited with blue light,
as seen in the upper right corner behind the vacuum window.
To find out the specific metabolic pathways affected by disease or stress, the Tufts scientists looked at three parameters: the ratio of FAD to NADH, the
fluorescence «fade» of NADH, and the organization of the mitochondria
as revealed by the spatial distribution of NADH within a cell (the energy producing «batteries» of the cell).
But the rare earths are especially valuable for their property of
fluorescence: They can absorb light or ultraviolet rays and re-emit the energy
as an eerie glow of certain colors specific to each element.
Fluorescence imaging shows that areas that received more light became more purified, as revealed by brighter fluorescence from th
Fluorescence imaging shows that areas that received more light became more purified,
as revealed by brighter
fluorescence from th
fluorescence from those regions.
At that point, the researchers began monitoring the repair process with longitudinal
fluorescence to determine if there would be an appreciable loss of stem cells in the in vivo samples,
as compared to the static, in vitro, environments.
When a laser is passed over the green protein, it changes to red
as a way of tagging when it has been been translated, and new proteins synthesized at that hotspot would be green, which is visible by the appearance of yellow
fluorescence (green + red,
as measured by light on the visible spectrum).
«In addition to being used for solid state lighting and full color displays, such technology can also be used
as light sources for
fluorescence bio and chemical detection,» continued Professor Ning.
However, X-ray
fluorescence scans can only be used to detect bone black on the surface of a painting and not in sub-surface layers, such
as is found in hidden sketches.