News articles tagged with 'chemical'
Scientists guide immune cells with light and microparticles
— 17 Nov 2009 17:04 | HealthA team led by Yale University scientists has developed a new approach to studying how immune cells chase down bacteria in our bodies. Their findings are described in the November 15... — full story
Nanoparticles used in common household items caused genetic damage in mice
— 17 Nov 2009 15:34 | HealthTitanium dioxide (TiO2) nanoparticles, found in everything from cosmetics to sunscreen to paint to vitamins, caused systemic genetic damage in mice, according to a comprehensive study... — full story
Protein changes in heart strengthen link between Alzheimer's disease and chronic heart failure
— 16 Nov 2009 11:40 | HealthA team of U.S., Canadian and Italian scientists led by researchers at Johns Hopkins report evidence from studies in animals and humans supporting a link between Alzheimer's disease... — full story
Exoplanets clue to sun's curious chemistry
— 12 Nov 2009 09:47 | Astronomy'For almost 10 years we have tried to find out what distinguishes stars with planetary systems from their barren cousins,' says Garik Israelian, lead author of a paper appearing this... — full story
Researchers 'notch' a victory toward new kind of cancer drug
— 12 Nov 2009 08:59 | HealthScientists have devised an innovative way to disarm a key protein considered to be 'undruggable,' meaning that all previous efforts to develop a drug against it have failed. Their discovery,... — full story
Amphibians as environmental omen disputed
— 12 Nov 2009 08:44 | BiologyAmphibians, for years considered a leading indicator of environmental degradation, are not uniquely susceptible to pollution, according to a meta-analysis to be published in Ecology... — full story
Earth's early ocean cooled more than a billion years earlier than thought: Stanford study
— 12 Nov 2009 08:37 | EnvironmentThe scalding-hot sea that supposedly covered the early Earth may in fact never have existed, according to a new study by Stanford University researchers who analysed isotope ratios... — full story
Workplace BPA exposure increases risk of male sexual dysfunction
— 11 Nov 2009 13:38 | HealthHigh levels of workplace exposure to Bisphenol-A may increase the risk of reduced sexual function in men, according to a Kaiser Permanente study appearing in the journal Human Reproduction,... — full story
Sculptured materials allow multiple channel plasmonic sensors
— 11 Nov 2009 12:38 | TechnologySensors, communications devices and imaging equipment that use a prism and a special form of light - a surface plasmon-polariton - may incorporate multiple channels or redundant applications... — full story
How size matters for catalysts
— 6 Nov 2009 12:40 | ChemistryUniversity of Utah chemists demonstrated the first conclusive link between the size of catalyst particles on a solid surface, their electronic properties and their ability to speed... — full story