Search results for nanograms

Analytical Chemistry Nov 2, 2016

Detecting potentially harmful mycotoxins in beer

Beer is one of the world's most popular alcoholic beverages. But, made with barley, brews can contain low levels of mycotoxins, which are produced by fungi that can contaminate grains. Although not a major health threat, ...

Analytical Chemistry Sep 9, 2016

Engineers develop the 'potalyzer,' a roadside saliva test for marijuana intoxication

This November, several states will vote whether to legalize marijuana use, joining more than 20 states that already allow some form of cannabis use. This has prompted a need for effective tools for police to determine on ...

Nanomaterials Jul 18, 2016

'Jumping film' harnesses the power of humidity

Scientists from the RIKEN Center for Emergent Matter Science (CEMS) and the University of Tokyo have developed a film that curls up and straightens out autonomously when exposed to tiny, barely measurable changes in ambient ...

Environment May 11, 2016

Tent camping could lead to flame retardant exposure

For campers, nothing beats sleeping in a tent in the great outdoors. But scientists are finding out the air inside tents might not be as fresh as people think. A study appearing in Environmental Science & Technology has found ...

Bio & Medicine Apr 29, 2016

Detecting minute nano amounts in environmental samples

It is still unclear what the impact is on humans, animals and plants of synthetic nanomaterials released into the environment or used in products. It's very difficult to detect these nanomaterials in the environment since ...

Environment Apr 26, 2016

Monitoring toxic chemicals in coastal waters to protect wildlife

More investment is needed to develop better analytical tests to measure, and therefore help control, the amount of toxic chemicals called organotins that enter the environment, according to a review published in Trends in ...

Biochemistry Apr 20, 2016

Fighting antibiotic resistance—how bacteria knit their 'sugar armour' at the single-molecule level

In a new paper published in Nature Chemistry, Dr. Lingbing Kong in Oxford University's Department of Chemistry takes an in-depth look at capsular polysaccharides, or 'sugar armour' – the outermost layer of bacteria that provides ...

Nanophysics Mar 28, 2016

Researchers make biosensor one million times more sensitive

Physicists and engineers at Case Western Reserve University have developed an optical sensor, based on nanostructured metamaterials, that's 1 million times more sensitive than the current best available—one capable of identifying ...

Analytical Chemistry Feb 2, 2016

Scientists have put a high precision blood assay into a simple test strip

Researchers from the General Physics Institute of the Russian Academy of Sciences (GPI RAS) and Moscow Institute of Physics and Technology (MIPT) have developed a new biosensor test system based on magnetic nanoparticles. ...

Ecology Jan 28, 2016

Bedbugs develop resistance to widely used chemical treatments, rendering them ineffective

One of the most widely used commercial chemicals to kill bedbugs are not effective because the pesky insects have built up a tolerance to them, according to a team of researchers from Virginia Tech and New Mexico State University.

page 16 from 27