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Tag: "microscope" at biology news

Mouse brain cells rapidly recover after Alzheimer's plaques are cleared

...bumps andswellings."If you look under the electron microscope at these swellings, they arefilled with abnormal amounts of different types of cellular parts knownas organelles," Holtzman explains. "Normally any given segment of anerve cell branch would have only very small amounts of theseorganelles."Nerve cells...

Key molecule in plant photo-protection identified

...bumps andswellings."If you look under the electron microscope at these swellings, they arefilled with abnormal amounts of different types of cellular parts knownas organelles," Holtzman explains. "Normally any given segment of anerve cell branch would have only very small amounts of theseorganelles."Nerve cells...

The transparent organism: EMBLEM and Carl Zeiss give labs a unique look at life

A novel high-tech microscope will be brought to the marketplace, giving laborat...side rather than along the traditional view of the microscope lens. This eliminates a problem that has plagued three-dimensional microscopy in the past: researche...

Alcohol's effects on gene expression in the central nervous system

...croarray studies ?the examination of a small glass microscope slide that has thousands of different DNA samples attached to it ?that are applied to brain function are just beginning in the field of alcoholism. Several years ago, it was impossible to analyze more than a handful of these genes, however, microarra...

Zebrafish may hold key to understanding human nerve cell development

... cells are exposed and can be easily seenunder the microscope in the live fish. We can also visually identifythe consequences of gene defects in the 200 to 300 embryos each femalefish produces," she said.By studying these mutant embryos, Piotrowski and her colleaguesdiscovered that during development the zebraf...

Harmful Bacterium Commonly Found in Poultry May Survive Refrigeration and Frozen Storage Combined

... cells are exposed and can be easily seenunder the microscope in the live fish. We can also visually identifythe consequences of gene defects in the 200 to 300 embryos each femalefish produces," she said.By studying these mutant embryos, Piotrowski and her colleaguesdiscovered that during development the zebraf...

GenMAPP 2.0 released

... cells are exposed and can be easily seenunder the microscope in the live fish. We can also visually identifythe consequences of gene defects in the 200 to 300 embryos each femalefish produces," she said.By studying these mutant embryos, Piotrowski and her colleaguesdiscovered that during development the zebraf...

Duke Chemists Isolating Individual Molecules Of Toxic Protein In Alzheimer's, Parkinson's Disease

...the infinitesimal tip of a customized atomic force microscope (AFM) to capture, isolate and study single molecul...s. They then attach one such tethered monomer to a microscope slide and the other to the AFM microscope tip. They can then bring the isolated and suspended molecu...

Devising Nano Vision for an Optical Microscope

...IST) suggests that a hybrid version of the optical microscope might be able to image and measure features smaller than 10 nanometers—a tiny fraction of the wavelength of visible light. In a preliminary test of the embryonic technique, NIST scientists used violet light with a wavelength of 436 nanometers to ima...

Great White shark evolution debate involves WSU Lake Campus geology professor

...ticated computer program. He even uses an electron microscope to view different serration designs of shark teeth. "Our analysis of their teeth shows that Great White and mako sharks have very similar tooth growth trajectories, while those of the great white and megladon are not similar. Analysis of both the ro...

Revolutionary nanotechnology illuminates brain cells at work

...lutamate, and we could see this activity under the microscope by watching the color change. We stimulated the neurons and watched them secrete glutamate in response. We also saw the removal of the glutamate as the neurons returned to normal ready to fire again." "This is a tremendously exciting technology," re...

Nano-bumps could help repair clogged blood vessels

...cells. After one hour, the discs were washed and a microscope was used to count how many of the dyed cells adhered to the material. The researchers found that nearly three times as many cells stuck to the discs containing the nano-bumps, as compared to ordinary titanium. "After one hour, we get three times mor...

Study: 'homemade' gene expression technology unreliable

...whole gene sequences that are laid out on a single microscope slide by fast-moving robotic machines. Scientists determine how the expression of individual genes is turned up or down by placing copies of DNA or RNA molecules labeled with fluorescent dyes on the slide, and examining whether the molecules that bin...

Successful Test Of Single Molecule Switch Opens The Door To Biomolecular Electronics

...m may have been solved by using the scanning probe microscope to make and measure single-molecule contacts, with molecules designed to bond at their ends with a surface and the probe tip. The second problem has been that these connected molecules have failed to exhibit the predicted electrical properties when ...

Microscopes at microscopic size

...at something small they would put a sample under a microscope but now researchers have managed to shrink the microscope itself to the size of a single human cell. An interdisciplinary research team, funded by the Biotech...

Microarrays as phenotype

...d to the DNA on the slides. Researchers then use a microscope to measure how much of a specific nucleic acid is present. Genotype is the genetic fingerprint of a particular cell. Phenotype is the outward manifestation of the genotype. For example, a person may have genes for eye color. That is that individual'...

Gov't Creates Gene Database of Normal Human Tissues

...ht pattern is then measured with a special type of microscope and the results are fed into a computer for analysis. Gene expression microarrays have been used in numerous applications, including identifying novel genes associated with certain cancers, classifying tumors, and predicting patient outcome. Another...

Engineers improve plastic's potential for use in implants by linking it to biological material

...opies of the peptide to the tip of an atomic force microscope at the university's Center for Nano- and Molecular...cience and Technology. The tip of this specialized microscope is normally passed across the surface of a material to "map" its peaks and valleys. In this case, th...

Researchers seek to discover what really happens when a virus enters the body

...orescent markers that Duca uses. Also, since the microscope cannot capture the entire laboratory dish at once, multiple sub-images must be taken quickly, then reassembled in the proper matrix. The "montage" artifact arises from the microscope's uneven illumination, which is brighter in the center and dissipat...

Microscopic brain imaging in the palm of your hand

... two-photon imaging -- the full functionality of a microscope that fits in the palm of your hand," says Schnitzer, indicating that this is what makes the technology eminently marketable. ...

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