Search results for nanograms

Environment Apr 14, 2023

Methamphetamine detected in first test in Oceania for airborne drug pollution

Methamphetamine, nicotine, caffeine and tetrahydrocannabinol (THC) were detected in downtown Auckland air in the first study of its type in New Zealand and Australia.

Environment Mar 22, 2023

Trying to solve the 'forever problem' of PFAS pollution

Per- and polyfluoroalkyl substances (PFAS) can be found almost everywhere and in almost everyone and can take more than 1,000 years to break down.

Environment Feb 23, 2023

Global wildlife contaminated by 'forever chemicals'

From pandas to sea lions to tigers, hundreds of wildlife species across the globe are contaminated by potentially harmful "forever chemicals", according to a review of hundreds of peer-reviewed studies.

Space Exploration Dec 12, 2022

Proposal for picogram-scale probes to explore nearby stars

In a forward-looking article, George Church, Ph.D., from Harvard University and the Wyss Institute, proposes the use of picogram to nanogram-scale probes that can land, replicate, and produce a communications module at the ...

Environment Oct 26, 2022

'Forever chemicals' persist through wastewater treatment, may enter crops

PFAS (per-and polyfluoroalkyl substances), a group of more than 4,700 fully synthetic compounds that are widely used in industrial and manufacturing processes and found in many consumer products, persist through wastewater ...

Environment Oct 18, 2022

Disinfection processes with better removal results for natural and synthetic progesterones in hospital wastewater

Hospital wastewater (HWW) contains plenty of persistent compounds, dangerous substances, and pathogenic microorganisms, such as antibiotics, psychiatric drugs, β-receptor blockers, anesthetics, analgesics, anti-inflammatory ...

Bio & Medicine Sep 22, 2022

Swimming nanorobots treat deadly pneumonia in mice

Nanoengineers at the University of California San Diego have developed microscopic robots, called microrobots, that can swim around in the lungs, deliver medication and be used to clear up life-threatening cases of bacterial ...

Biochemistry Sep 6, 2022

Pesticide exposure measurable through sewage water

For the first time, scientists from the University of Amsterdam and a Spanish university have developed a method to quickly determine the exposure of people to pesticides via the analysis of wastewater. The researchers published ...

Environment Mar 28, 2022

No, sunscreen chemicals are not bleaching the Great Barrier Reef

For the sixth time in the last 25 years, the Great Barrier Reef is bleaching. During bleaching events, people are quick to point the finger at different causes, including sunscreen.

Plants & Animals Mar 8, 2022

Paper made from banana plants stymies potato pest

Wrapping potato seeds in biodegradable paper made from unusable parts of banana plants reduces the infestation and harmful effects of a nasty plant pathogen—a worm called the potato cyst nematode—and sharply increases potato ...

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