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74 Current news about the topic mercury

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Detecting Mercury with Gold

Individual gold nanorods could be used to develop smaller, portable mercury sensors

09-Mar-2017

Mercury is harmful even in small amounts. Detecting it currently requires expensive equipment. Researchers are working on a faster and cheaper alternative: a portable sensor that can perform a rapid analysis in the field. The key is finding something small and accurate enough to do the job.For ...

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Fluorescence method detects mercury contamination in fish

24-Feb-2017

Researchers from the University of Burgos (Spain) have developed a fluorescent polymer that lights up in contact with mercury that may be present in fish. High levels of the metal were detected in samples of swordfish and tuna. According to the conclusions of another Spanish study, mercury ...

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Glowing crystals can detect, cleanse contaminated drinking water

30-Nov-2016

Tiny, glowing crystals designed to detect and capture heavy-metal toxins such as lead and mercury could prove to be a powerful new tool in locating and cleaning up contaminated water sources. Motivated by publicized cases in which high levels of heavy metals were found in drinking water in Flint, ...

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Scientists identify enzymes that create a highly toxic form of mercury in Antarctic sea ice

02-Sep-2016

Researchers from Lawrence Livermore National Laboratory (LLNL) assisted a team from the University of Melbourne in discovering how methylmercury enters the Antarctic sea and bioaccumulates in the marine food web. LLNL scientists Michael Thelen and Adam Zemla performed protein sequence analysis ...

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Mercury in fish affected by both prey type and quality

10-May-2016

Whether fish hunt nearshore or in the open water and what prey they eat affect the amount of mercury that accumulates in them, a Dartmouth College study shows. Mercury accumulation in fish poses well-known health risks to humans and wildlife, but fish mercury levels are highly variable and key ...

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Tiny microbots that can clean up water

Self-propelled tiny ‘microbots’ that can remove pollution from contaminated water developed.

03-May-2016

Working with colleagues in Barcelona and Singapore, Samuel Sánchez’s group used graphene oxide to make their microscale motors, which are able to adsorb lead from industrial wastewater from a level of 1000 parts-per-billion to down to below 50 parts-per-billion in just an hour. The lead can ...

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Researcher finds gold - and other metals

Gold sensor is latest in a series of metal-detecting biosensors

22-Feb-2016

Instead of a pan and a pick ax, prospectors of the future might seek gold with a hand-held biosensor that uses a component of DNA to detect traces of the element in water. The gold sensor is the latest in a series of metal-detecting biosensors under development by Rebecca Lai, an associate ...

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Highly efficient heavy metal ions filter

27-Jan-2016

ETH researchers have developed a new water filtration system that is superior to existing systems in many respects: it is extremely efficient at removing various toxic heavy metal ions and radioactive substances from water and can even be used in gold recovery. In November, Brazil experienced an ...

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New research sheds light on mercury pollution in estuaries, food chain

09-Dec-2015

Two studies by Dartmouth researchers and their colleagues shed new light on mercury pollution in the waters of the northeastern United States. Mercury, which is transformed into methylmercury in water, is a global pollutant that damages human health. Most people are exposed to mercury by eating ...

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How mercury contamination affects reptiles in the Amazon basin

23-Sep-2015

Mercury contamination in water and on land is of worldwide concern due to its toxic effects on ecosystems and human health. Mercury toxicity is of particular concern to reptiles because they are currently experiencing population declines. Also, reptiles are ideal indicators of mercury ...

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