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Latest Silver Nano Stories

Frank Kjeldsen
2014-02-28 08:17:46

University of Southern Denmark Endocrine disrupters are not the only worrying chemicals that ordinary consumers are exposed to in everyday life. Also nanoparticles of silver, found in e.g. dietary supplements, cosmetics and food packaging, now worry scientists. A new study from the University of Southern Denmark shows that nano-silver can penetrate our cells and cause damage. Silver has an antibacterial effect and therefore the food and cosmetic industry often coat their products with...

New Technique Detects Toxic Nanoparticles In Fresh Produce, Other Foods Products
2013-08-23 08:22:21

April Flowers for redOrbit.com - Your Universe Online The use of nanomaterials for water treatment, food packaging, pesticides, cosmetics and other industrial uses has increased over the last few years. Silver nanoparticles, for example, are used by farmers as a pesticide because of their capability to suppress the growth of harmful organisms. A growing concern among scientists is that these particles could pose a potential health risk to both humans and the environment. A new study...

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2011-05-12 11:20:24

Nanoparticles of silver are being found increasingly in the environment"”and in environmental science laboratories. Because they have a variety of useful properties, especially as antibacterial and antifungal agents, silver nanoparticles increasingly are being used in a wide variety of industrial and consumer products. This, in turn, has raised concerns about what happens to them once released into the environment. Now a new research paper* adds an additional wrinkle: Nature may be...

2011-03-10 15:19:06

Oversight Challenges Still Exist Nanotech consumer products continue to grow at a consistent pace. According to the Project on Emerging Nanotechnologies (PEN) over 1,300 manufacturer-identified, nanotechnology-enabled products have entered the commercial marketplace around the world. The most recent update to the group's five-year-old inventory reflects the continuing use of the tiny particles in everything from conventional products like non-stick cookware to more unique items such as...

2011-02-23 18:00:34

McGill researchers develop a new and inexpensive way of filtering water using silver nanoparticles Disasters such as floods, tsunamis, and earthquakes often result in the spread of diseases like gastroenteritis, giardiasis and even cholera because of an immediate shortage of clean drinking water. Now, chemistry researchers at McGill University have taken a key step towards making a cheap, portable, paper-based filter coated with silver nanoparticles to be used in these emergency settings....

2011-02-16 16:52:21

Scientists are reporting development and successful lab tests of "killer paper," a material intended for use as a new food packaging material that helps preserve foods by fighting the bacteria that cause spoilage. The paper, described in ACS's journal, Langmuir, contains a coating of silver nanoparticles, which are powerful anti-bacterial agents. Aharon Gedanken and colleagues note that silver already finds wide use as a bacteria fighter in certain medicinal ointments, kitchen and bathroom...

2010-05-24 08:45:40

Writing in the International Journal of Nanoparticles, Rani Pattabi and colleagues at Mangalore University, explain how blasting silver nitrate solution with an electron beam can generate nanoparticles that are more effective at killing all kinds of bacteria, including gram-negative species that are not harmed by conventional antibacterial agents. Your running shoes, socks and even computer keyboard may be impregnated with silver nanoparticles that can kill some bacteria, keep you smelling...

2010-02-24 11:45:06

Chemists at the University of Helsinki have managed to manufacture new polymer-stabilized silver nanoparticles. The result is significant because the antimicrobial characteristics of silver are used in textiles, floor coatings and paints even though the impact on health of silver nanoparticles are not entirely known. Finnish researchers now think that exposure to silver can be reduced by chemically binding the nanoparticles to polymers. The research results will soon be published in a leading...

2009-10-28 13:48:52

Scientists in Switzerland are reporting results of one of the first studies on the release of silver nanoparticles from laundering those anti-odor, anti-bacterial socks now on the market. Their findings, scheduled for the Nov. 1 issue of ACS' journal Environmental Science & Technology, may suggest ways that manufacturers and consumers can minimize the release of these particles to the environment, where they could harm fish and other wildlife. In the study, Bernd Nowack and colleagues...


Word of the Day
tesla
  • The unit of magnetic flux density in the International System of Units, equal to the magnitude of the magnetic field vector necessary to produce a force of one newton on a charge of one coulomb moving perpendicular to the direction of the magnetic field vector with a velocity of one meter per second. It is equivalent to one weber per square meter.
This word is named for Nikola Tesla, the inventor, engineer, and futurist.