Search results for nanograms

Environment Sep 10, 2010

Tracking triclosan's field footprint

A study by U.S. Department of Agriculture (USDA) scientists and cooperators provides new details about how fertilizing soils with biosolids also introduces triclosan -- an antibacterial agent in soaps and other cleaning supplies ...

Biochemistry Sep 8, 2010

Scientists make leap forward in early detection for Alzheimer's and cancer

Scientists at the UK's National Physical Laboratory have developed a new strategy for quicker and more precise detection of biomarkers - proteins which indicate disease. The work could pave the way for new tools to detect ...

Biochemistry Sep 2, 2010

Scientists improve biomarker detection technique

Scientists from NPL's Biotechnology group have developed a new strategy to enable quicker and more precise detection of biomarkers - proteins which indicate disease. The work marks a new research direction for the group, ...

Analytical Chemistry Jun 24, 2010

Breast milk transmits drugs and medicines to the baby

There is great confusion among the scientific community about whether women who are drug abusers should breast feed their babies. In order to shed some light on this issue, scientists from various Spanish hospitals and research ...

Environment May 18, 2010

88 pollutants detected in Madrid's rivers

A team of researchers from IMDEA, the Madrid Institute for Advanced Studies, and the University of Almeria has confirmed the presence of 88 pollutants in river waters in the region of Madrid. These compounds, most of which ...

Analytical Chemistry May 5, 2010

Ultra-Sensitive Cocaine Detection

(PhysOrg.com) -- Forensic science student Sonica Devi has found minute traces of cocaine at a number of public phone boxes in the city of Derby, UK - thanks to a new development in forensic analysis.

Ecology Apr 9, 2010

Invasive fish and mussels team up to transfer toxic substances into Great Lakes walleyes

(PhysOrg.com) -- Two notorious Great Lakes invaders -- the zebra mussel and the round goby -- now play a central role in transferring toxic chemicals called PCBs up the food chain and into Saginaw Bay walleyes, one of that ...

Analytical Chemistry Dec 23, 2009

Tracing the traces: Nanogram concentrations of a toxic compound detected in chlorinated tap water

(PhysOrg.com) -- Drinking water can transmit a number of diseases, including typhoid, dysentery, cholera, and diarrhea, which can then spread explosively throughout an entire service area. To avoid this problem, drinking ...

Environment Dec 7, 2009

White, but not pure

Even the snow on Aconcagua Mountain in the Andes is polluted with PCBs. An international team of researchers detected low concentrations of these toxic, carcinogenic chlorine compounds in samples taken from America's highest ...

Bio & Medicine Nov 18, 2009

Detecting the Undetectable in Prostate Cancer Testing

(PhysOrg.com) -- A team of Northwestern University researchers, using an extremely sensitive nanotechnology-based tool known as the biobarcode system, has detected previously undetectable levels of prostate-specific antigen ...

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