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Search results for nanograms

Ecology Oct 5, 2017

Bee-harming pesticides in 75 percent of honey worldwide: study

Traces of pesticides that act as nerve agents on bees have been found in 75 percent of honey worldwide, raising concern about the survival of these crucial crop pollinators, researchers said Thursday.

Analytical Chemistry Sep 11, 2017

Enhanced protein analysis could help early disease detection

People could start receiving life-saving treatment for cancer and other diseases much earlier with the help of a new method to analyze blood proteins.

Ecology Aug 31, 2017

Antidepressants found in fish brains in Great Lakes region

Human antidepressants are building up in the brains of bass, walleye and several other fish common to the Great Lakes region, scientists say.

Nanophysics Aug 21, 2017

Testing TVs and tablets for 'green' screens

To improve viewing pleasure, companies have developed television—and tablet screens—that include quantum dots to enhance brightness and color. Some quantum dots are made with potentially harmful metals, which could leach ...

Cell & Microbiology Jul 25, 2017

Antibiotics come with 'environmental side effects,' experts say

Researchers writing in Microchemical Journal are bringing attention to the fact that commonly used antibiotic drugs are making their way out into the environment, where they can harm microbes that are essential to a healthy ...

Environment Jun 28, 2017

Indoor air in schools could add to children's exposure to PCBs

The U.S. banned PCBs nearly four decades ago, but they persist in the environment and have been found in animals and humans since then. Now researchers report in ACS' journal Environmental Science & Technology that concentrations ...

Nanophysics Jun 22, 2017

Holey pattern boosts coherence of nanomechanical membrane vibrations

Researchers at the Niels Bohr Institute have introduced a new type of nanomechanical resonator, in which a pattern of holes localizes vibrations to a small region in a 30 nm thick membrane. The pattern dramatically suppresses ...

Optics & Photonics May 30, 2017

New plasmonic sensor improves early cancer detection

A new plasmonic sensor developed by researchers at the University of Illinois at Urbana-Champaign will serve as a reliable early detection of biomarkers for many forms of cancer and eventually other diseases.

Energy & Green Tech May 24, 2017

Carcinogenic soot particles from petrol engines

A new study led by Empa scientists finds that some direct-injection gasoline engines emit just as many soot particles as unfiltered diesel cars did in the past. Particle filters can remedy this.

Environment Apr 5, 2017

Neonicotinoids detected in drinking water in agricultural area

Concern over the use of neonicotinoid pesticides is growing as studies find them in rivers and streams, and link them with declining bee populations and health effects in other animals. Now researchers report that in some ...

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