powder

Tiny particles could solve billion-dollar problem

... of palladium catalysts: bulk palladium, palladium powder on an aluminum oxide support base, pure palladium nanoparticles and a hybrid nanoparticle developed by Wong that consists of a gold nanoparticle covered with a thin coat of palladium atoms. As metal particles get progressively smaller, a higher perc...

Chemists identify immune system mechanism for methamphetamine binges

...cularly cold and allergy medicines. Available as a powder or crystal, the drug can be injected, snorted, swallowed and smoked to provide users with a sense of euphoria. Drug effects can last for up to 12 hours. Frequent use is associated with serious health problems, including memory loss, aggression, psych...

Thai spice helps cut blood sugar swings

...avoring agent. In Indian folk medicine as a dried powder or tea it's indicated as a laxative and for rheumatism. As Malabar tamarind, it can substitute for lime, and in Ceylon it's used along with salt to cure fish. For HCA, though, the other half of the taste-benefit formula is much less clear. Animal st...

Hanging baskets of sex and death help fruit growers

...test also helped them choose between a liquid and powder based mix for the virus - the liquid was found to be best. The University of Warwick researchers are now working with colleagues from East Malling Research on a larger scale 12 hectare trial of the dispenser in a large commercial apple orchard in Wor...

Portable cocaine sensor developed at UC Santa Barbara

... Scott test. When a chemical is added to the white powder it changes color. But there are many ways around this test, explained Plaxco, and some cocaine manufacturers add a chemical to block the color change. "Our sensor can detect cocaine no matter what they have cut it with: powdered sugar, flour, or the ...

Next good dinosaur news likely to come from small packages

...." "It just takes two or three pinches of bone powder to find molecular evidence," Ostrom said. "We have protein sequences from material believed to be in range of half a million years old. We are carefully working our way back in time." She said it appears some proteins can endure longer than DNA. In...

A buffet for early human relatives

...and basically grind away at the tooth, collect the powder and then analyze that," Passey says. In the past decade, researchers including Cerling have used "laser ablation" to remove and analyze tooth enamel samples from the large, fossilized teeth of prehistoric horses, rhinos and elephants to determine...

ASU researchers test antibacterial effects of healing clays

... He guessed wrong. Armed with 100 grams of green powder (clay high in reduced iron), Williams not only took the micrographs of the minerals, she went a step further and examined their crystal structure and chemical compositions. She recruited Haydel to the project before the microbiologist arrived at ASU ...

Cellulose nanocrystal research could lead to new vaccines, computer inks

...ystals to a powder. This has risks as well, as the powder can be a serious health hazard if inhaled. The ink jet printing allows for a safe method of deposition of the nanocrystals. ...

Cancer researchers add spice to research against rare neuromuscular disease

...e curcumin ?the bright yellow spice found in curry powder ?has been used to treat a variety of ills. In the last decade, Western medicine has been putting curry to the test, finding that the spice offers promise against breast cancer, melanoma, Alzheimer's disease and the blisters that come with radiation t...

Protein fragments sequenced in 68 million-year-old Tyrannosaurus rex

... Schweitzer, arrived in the form of a gritty brown powder that had to be rid of contaminants. Using techniques and tricks perfected while working on the mammoth sample, Asara purified the protein, identified as collagen, and, with the enzyme trypsin, broke it down into fragments, or peptides, 10 to 20 amino...