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Tag: "technique" at biology news

Novel ultrafast laser detection of cancer cells also may improve understanding of stem cells

...ages, and without invasive chemical reagents. The technique generates a laser beam in single human cells pumpe...lular mitochondria as biomarkers for disease. This technique holds promise for detecting cancer at a very early stage and could nearly eliminate delays in diagno...

Devising Nano Vision for an Optical Microscope

...tter-field optical imaging, the computer-intensive technique under development at NIST uses a set of dynamically engineered light waves optimized for particular properties (such as angular orientation and polarization). How this structured illumination field—engineered differently to highlight the particular g...

The very unexpected life and death of a leukemic cell

...ls in vivo by employing a non-radioactive labeling technique ?using "heavy water" to track cell production. Heavy water is made using a form of hydrogen that has twice its normal mass, making the water molecule "heavier" than normal. The special hydrogen serves as a tag that enables researchers to track the ut...

New methods of gene delivery using lasers

..., the St Andrews group have greatly simplified the technique by using an extremely simple and versatile miniatu... be treated at will under the microscope. The new technique involves the violet laser being focused onto cell membranes for a fraction of a second ?this causes ...

Breakthrough method in nanoparticle synthesis paves the way for new pharmaceutical and biomedical applications

...g have developed a fluorocarbon-mediated-synthesis technique that produces nanometer-sized particles of between...h small pore diameter ( IBN’s simple wet-chemical technique uses two different types of surfactant (a soluble chemical compound that reduces the surface tension...

UF Researchers Map Bacterial Proteins That Cause Tooth Loss

...from the two conditions were separated using a new technique called Multidimensional Protein Identification Technology, or MudPIT. Once separated, mass spectrometry was used to measure each protein’s mass and charge, identifiers as unique to proteins as the whorls of fingerprints are to people. The spectrome...

Molecular Motors Cooperate In Moving Cellular Cargo, Study Shows

...chers using an extremely fast and accurate imaging technique have shed light on the tiny movements of molecular...ion, Selvin and colleagues at Illinois developed a technique called Fluorescence Imaging with One Nanometer Accuracy. The technique can locate a fluorescent dye ...

Cricket's finicky mating behavior boosts biodiversity

...apacity to interbreed." Mendelson and Shaw used a technique called amplified fragment-length polymorphisms to establish the evolutionary tree, or phylogeny, of the Laupala. They based their estimates of the cricket's rate of speciation on the Laupala's phylogeny and on the age of the islands in the Hawaiian a...

PET/MRI scans may help unravel mechanisms of prenatal drug damage

...ally damaging effects of prenatal drug exposure--a technique that could also be used to monitor a fetus's respo... and distributed among the body's organs), the PET technique alone did not provide adequate anatomical detail of the tiny fetal organs. The current study combine...

Pulsating ultrasound enhances gene therapy for tumors

...ncerous cells, effectively "cooking" them. Under a technique introduced by King C.P. Li, M.D., M.B.A., from the National Institutes of Health (NIH), short pulses of HIFU can be used to prevent exposed tissue from becoming too hot and damaged. Pulsed-HIFU instead renders tissues permeable and helps target them ...

New Drugs For Bad Bugs: UF Approach Could Bolster Antibiotic Arsenal

... is approved,?said Derendorf, who will discuss the technique Saturday (March 5) at the annual meeting of the Am...62; UF researchers have developed a patent-pending technique called microdialysis that uses a small needle probe to measure how much of a drug actually ends up i...

Computational Method Speeds Mapping of Cell Signaling Networks

...nces" between molecules. Pe'er suggests a similar technique could be used to study the differences between nor...mmunity. Until now, the large amounts of data the technique requires prevented its application to protein networks. Being able to monitor multiple components in...

New lab technique identifies high levels of pathogens in therapy pool

... team using a novel genetic cloning and sequencing technique has identified a surprisingly high number of airbo...ne ill lifeguards who worked at the facility. The technique used in the study is 1,000 times more sensitive than standard microbe-culturing techniques used at m...

Microbial forensics: The next great forensic challenge

...ve challenges. "It is doubtful that any one single technique will be sufficient, but rather a 'multivariate approach' will be required that is tailored to the threat encountered and situation to be addressed. In any case, the scientific and investigative processes must be closely coupled and mutually supportiv...

Anti cancer virotherapy well tolerated in first human administration, research finds

... killing melanoma cells in mice . The virotherapy technique involves the specific targeting and killing of cancer cells through the introduction into the body of the appropriate viral material which then reproduces at a rapid rate over a short period of time, devouring the cancer cells in the process by attac...

Brain-mapping technique aids understanding of sleep, wakefulness

The power of a new technique to map connections among nerve cells in the brain ...exin neurons has been a challenge. A brain-mapping technique developed recently by French scientists provided Dr. Yanagisawa and his research group new hope for ...

Revolutionary nanotechnology illuminates brain cells at work

...nal Academy of Sciences. "The fluorescent imaging technique allows us to see living cells do their jobs live and in color," explained Sakiko Okumoto, lead author of the study at Carnegie. "Understanding when and how glutamate is produced, secreted, reabsorbed, and metabolized in individual brain cells, in rea...

Genetically Modified Natural Killer Immune Cells Attack, Kill Leukemia Cells

...St. Jude team were the development of a laboratory technique for rapidly producing a large, pure population of ...lls from a small sample of blood; and developing a technique for genetically modifying NK cells so that they would become potent killers when they encountered le...

Technique may allow cancer patients to freeze eggs, preserving fertility before starting treatment

A new technique might allow women diagnosed with cancer the opport... cells called vitrification. This cryopreservation technique allows the eggs to be cooled fast enough that the transformation from liquid to solid is instantaneo...

Used in a new way, RNA interference permanently silences key breast cancer gene

...permanently hampers breast cancer development. The technique permanently silences activated STAT3, a crucial ge...ues to expand. "We are a long way from using this technique in patients, but this study shows that that it may be possible to use RNAi in more than just experim...

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