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Tag: "ingredient" at biology news

Scientists rid stem cell culture of key animal cells

...ls grow. The mouse feeder cells were an important ingredient in the mix of culture materials required to keep stem cells in their undifferentiated "blank slate" state. Embryonic stem cells are capable of forming any of the 220 tissues and cells in the human body and, in culture, are constantly trying to migrat...

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

...ater cost savings, as the production of the chiral ingredient currently accounts for 10-40% of the total cost. IBN’s invention could potentially have a significant impact on the chiral pharmaceuticals industry, a fast-growing sector which generated US$143 billion sales in 2003. Other applications of IBN’s nano...

Iron exporter revealed that may explain common human disorder

...the diet, but not too much." Iron is an essential ingredient of hemoglobin, the protein molecule in red blood cells that carries oxygen from the lungs to the body's tissues. Unlike other metals, iron cannot be eliminated through the liver or kidneys, Andrews explained. Iron balance is maintained instead throug...

Nanoscale Diagnostic Sets Sights on Alzheimer's

...nd of the procedure. Researchers then add a second ingredient that consists of a gold nanoparticle core surrounded by hundreds of identical DNA strands, which serve as hundreds of "bio-bar-codes" the researchers can detect at the end of the test. Ultimately, the gold-DNA particles and magnetic particles sandwic...

Defenseless plants arm themselves with metals

...ylic acid - a common plant compound and the active ingredient in pharmaceuticals like aspirin and acne medications - governs this pathway. When faced with a fungus or bacteria, most plants turn up their production of salicylic acid, which then interacts with other molecules in the plant, eventually turning on ...

Activation of thermoreceptors mediates raw garlic's burning pungency

The worldwide popularity of garlic as a food ingredient and its therapeutic stature in folklore both stem in part from the distinctive pungency associated with its raw, uncooked state. Researchers this week report that this pungency, manifested as a characteristic mixture of burning and prickling sensatio...

Thai spice helps cut blood sugar swings

In this obesity-obsessed world, the dream ingredient must be something that tastes good enough to be a ...lty shops as Citrimax or Citrin, and is a featured ingredient in such dietetic aids as Herbalife's "Snack Defense" tablets. A group of Dutch researchers went bac...

Roundup®highly lethal to amphibians, finds University of Pittsburgh researcher

...said. Previous research had found that the lethal ingredient in Roundup® was not the herbicide itself, glyphosate, but rather the surfactant, or detergent, that allows the herbicide to penetrate the waxy surfaces of plants. In Roundup®, that surfactant is a chemical called polyethoxylated tallowamine. Other he...

Key to elephant conservation is 'in the sauce'

...They both feel the burn of chilli peppers, the key ingredient for resolving human-elephant conflicts in Africa w...core crops of maize, sorghum and millet; and as an ingredient in a spray to drive away animals. In addition, chillies are currently being used in the production ...

Promiscuous Catalytic Activity Possessed by Novel Enzyme Structure

..., a component in the production of THC, the active ingredient of marijuana. Unlike other previously known prenylation enzymes that only act on a small number of molecules, this new enzyme was able to attach prenyl groups to most of the different aromatic compounds tested. Some of the newly-formed hybrid molecul...

Stem cell training program to make its Stanford debut

..., a component in the production of THC, the active ingredient of marijuana. Unlike other previously known prenylation enzymes that only act on a small number of molecules, this new enzyme was able to attach prenyl groups to most of the different aromatic compounds tested. Some of the newly-formed hybrid molecul...

Bacteria are key to 'green' plastics, drugs

...n a "green" production method for succinate, a key ingredient of many plastics, drugs, solvents and food additives. Developed at Rice University, the technology uses a genetically modified form of the bacteria E. coli that metabolizes glucose and produces almost pure succinate. Finding "green" methods to make ...

Mayan stingless bee keeping: Going, going, gone?

...ource…as a sweetener, as an antibiotic and as an ingredient in the Mayan version of mead. The Mayans, like other tropical forest cultures, worked with large-bodied meliponine bees that produce a variety of honeys. Their favorite, and one of the most productive species, has been Melipona beecheii, 'Xunan kab',...

Quantum dots provide a faster, more sensitive method for detecting respiratory viral infections

...ld also be relatively inexpensive. The most costly ingredient is the quantum dots: A small bottle that contains enough of the material for about 200 tests costs $300. As a result, this could be one of the earliest medical applications of nanotechnology, Wright and Crowe say. The researchers' next step will be...

Aloe vera coating may prolong freshness, safety of fruits and vegetables

...that Aloe vera gel has been used as a functional ingredient in some foods and beverages for years. In addition to preserving table grapes, which are highly perishable, the gel can be applied to other fruits and vegetables, they say. Further testing of the gel on other types of produce is anticipated. The gel...

Shampoo detergent added to paint makes surfaces self-sterilizing

Adding a common ingredient in shampoo to paints and varnishes can create self...hin 30 seconds. "We found that the common shampoo ingredient cetavlon was especially effective, as well as having good dopant properties due to its being a deter...

New processing method reduces peanut allergenicity

... industry in general, where peanuts are used as an ingredient in food product development and food preparation." ...

Breath of the dragon: ERS-2 and Envisat reveal impact of economic growth on China's air quality

...ight) is itself a harmful toxic pollutant, a major ingredient of photochemical smog. "While nitrogen dioxide vertical column concentrations above central and eastern Europe and parts of the East Coast of the United States have been either static or exhibiting a small decrease, there is a clear and significant...

University of Arizona plant scientists to unravel maize genome

...on in genomics research, which is considered a key ingredient in building a leading-edge bioindustry. Genomics - the analysis of an organism's complete set of genes - provides the basis for the improvement of crops, development of new drugs or finding the ultimate causes for disease. The Battelle Memorial Insti...

Researchers show how air pollution can cause heart disease

...of macrophages, immune cells that are an important ingredient in plaque deposits and also active participants in a biochemical pathway related to inflammation. The study revealed several signs that this pathway was more active, strengthening the connection between airborne particles and cardiovascular disease. ...

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