Thursday, 23 January 2020
News with tag Chemicals  RSS
U.S. drinking water widely contaminated with 'forever chemicals': environment watchdog

Added: 23.01.2020 1:16 | 0 views | 0 comments

The contamination of U.S. drinking water with man-made "forever chemicals" is far worse than previously estimated with some of the highest levels found in Miami, Philadelphia and New Orleans, said a report on Wednesday by an environmental watchdog group.


What's in Puget sound? New technique casts a wide net for concerning chemicals

Added: 23.01.2020 0:20 | 19 views | 0 comments

Using a new 'non-targeted' approach, researchers screened samples from multiple regions of Puget Sound to look for potentially harmful compounds that might be present.

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Mixing the unmixable: Novel approach for efficiently fusing different polymers

Added: 22.01.2020 22:20 | 25 views | 0 comments

Cross-linked polymers are structures where large molecular chains are linked together, allowing exceptional mechanical properties and chemical resistance to the final product. However, their modification is not easy. Now, scientists develop a method that allows the fusion of different polymers together easily, allowing the precise tuning of the properties of the final material by selecting appropriate base polymers and mixing them at the right proportion.

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Surprise discovery shakes up our understanding of gene expression

Added: 22.01.2020 20:43 | 16 views | 0 comments

A group of scientists has uncovered a previously unknown way that our genes are made into reality. Rather than directions going one-way from DNA to RNA to proteins, the latest study shows that RNA itself modulates how DNA is transcribed -- using a chemical process that is increasingly apparent to be vital to biology. The discovery has significant implications for our understanding of human disease and drug design.

From: https:

Natural 'breakdown' of chemicals predicts lung damage in 9/11 firefighters

Added: 22.01.2020 19:23 | 3 views | 0 comments

Abnormal levels of more than two dozen metabolites -- chemicals produced in the body as it breaks down fats, proteins and carbohydrates -- can reliably predict which Sept. 11 firefighters developed lung disease and which did not, a new analysis shows.

From: https:

E-cigarette vapor disables key immune cells in the lung and boosts inflammation

Added: 22.01.2020 19:23 | 3 views | 0 comments

E-cigarette vapor boosts the production of inflammatory chemicals and disables key protective cells in the lung that keep the air spaces clear of potentially harmful particles, reveals a small experimental study.

Tags: Chemicals, NFL, SPA
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Inner complexity of Saturn moon, Enceladus, revealed

Added: 22.01.2020 19:20 | 15 views | 0 comments

A team developed a new geochemical model that reveals that carbon dioxide (CO2) from within Enceladus, an ocean-harboring moon of Saturn, may be controlled by chemical reactions at its seafloor. Studying the plume of gases and frozen sea spray released through cracks in the moon's icy surface suggests an interior more complex than previously thought.

Tags: Chemicals
From: https:

Mosquitoes are drawn to flowers as much as people -- and now scientists know why

Added: 22.01.2020 19:20 | 8 views | 0 comments

Despite their reputation as blood-suckers, mosquitoes actually spent most of their time drinking nectar from flowers. Scientists have identified the chemical cues in flowers that stimulate mosquitoes' sense of smell and draw them in. Their findings show how cues from flowers can stimulate the mosquito brain as much as a warm-blooded host -- information that could help develop less toxic repellents and better traps.

From: https:

Buckyballs can pave the way for molecular electronics

Added: 22.01.2020 19:20 | 9 views | 0 comments

Organic self-assembled monolayers (SAMs) have been around for over forty years. The most widely used form is based on thiols, bound to a metal surface. However, exposure of these monolayers to air will lead to breakdown within a single day. Scientists have now created SAMs using buckyballs functionalized with 'tails' of ethylene glycol. These have all the properties of thiol SAMs but remain chemically unchanged for several weeks when exposed to air.

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