Search results for nanograms

Analytical Chemistry Apr 5, 2021

Doping by athletes could become tougher to hide with new detection method

As the world awaits the upcoming Olympic games, a new method for detecting doping compounds in urine samples could level the playing field for those trying to keep athletics clean. Today, scientists report an approach using ...

Materials Science Mar 24, 2021

Do you know the way to Berkelium, Californium?

Heavy elements known as the actinides are important materials for medicine, energy, and national defense. But even though the first actinides were discovered by scientists at Berkeley Lab more than 50 years ago, we still ...

Condensed Matter Feb 3, 2021

Discoveries at the edge of the periodic table: First ever measurements of einsteinium

Since element 99—einsteinium—was discovered in 1952 at the Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) from the debris of the first hydrogen bomb, scientists have performed very few experiments ...

Bio & Medicine Dec 22, 2020

Detecting COVID-19 antibodies in 10 seconds

Researchers at Carnegie Mellon University report findings on an advanced nanomaterial-based biosensing platform that detects, within seconds, antibodies specific to SARS-CoV-2, the virus responsible for the COVID-19 pandemic. ...

Biochemistry Nov 10, 2020

Gastrointestinal-resident, shape-changing microdevices for extended drug delivery

The online cover story of Science Advances this week features a conceptual gastrointestinal (GI) microdevice, developed by a research team for extended drug release. Drug delivery platforms for extended drug release have ...

Biochemistry Nov 2, 2020

Researchers advance efforts to accurately measure glyphosate pesticide in oats

Pesticides help farmers increase food production, reduce costly damage to crops, and even prevent the spread of insect-borne diseases, but since the chemicals can also end up in human food, it's essential to ensure that they ...

Plants & Animals Oct 23, 2020

Fish exposed to estrogen produce fewer males

Water tainted with even a small concentration of human hormones can have profound effects on fish, according to a University of Cincinnati biologist.

Materials Science Sep 7, 2020

Efficient removal of steroid hormones from water

Micropollutants contaminate the water worldwide. Among them are steroid hormones that cannot be eliminated efficiently by conventional processes. Researchers of Karlsruhe Institute of Technology (KIT) have now developed an ...

Optics & Photonics Apr 15, 2020

Novel tin 'bubbles' spur advances in the development of integrated chips

The use of extreme ultraviolet light sources in making advanced integrated chips has been considered, but their development has been hindered owing to a paucity of efficient laser targets. Scientists at Tokyo Institute of ...

Analytical Chemistry Mar 30, 2020

Saliva test for cannabis could someday help identify impaired drivers

In the U.S., those who consume alcohol and drive are often subjected to roadside stops, breathalyzer tests and stiff penalties if their blood alcohol content exceeds certain limits. Currently, no such test exists for cannabis ...

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