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Latest Silver nanoparticles Stories

Antimicrobial Edible Films Prevent Pathogens In Meat
2014-05-02 04:00:08

Jeff Mulhollem, Penn State Antimicrobial agents incorporated into edible films applied to foods to seal in flavor, freshness and color can improve the microbiological safety of meats, according to researchers in Penn State's College of Agricultural Sciences. Using films made of pullulan -- an edible, mostly tasteless, transparent polymer produced by the fungus Aureobasidium pulluns -- researchers evaluated the effectiveness of films containing essential oils derived from rosemary,...

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...

2014-02-25 14:11:33

Rice University lab builds rig to evaluate oil, gas wells in fracturing operations A tabletop device invented at Rice University can tell how efficiently a nanoparticle would travel through a well and may provide a wealth of information for oil and gas producers. The device gathers data on how tracers – microscopic particles that can be pumped into and recovered from wells – move through deep rock formations that have been opened by hydraulic fracturing. Drilling companies use...

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...

2013-06-15 23:00:35

Based on research, both the ATM buttons, and the public toilet seats have the same pseudomonades and bacillus bacteria. These germs may not kill people but will cause them serious stomach distress. Philadelphia, PA (PRWEB) June 15, 2013 The U Power wallet is for the in-trend minimalists. It features a slim design to fit in any pocket, RFID blocking fabric to secure bankcards and passports from skimming thieves, innovative stylus pen functionality to operate capacitive and resistive touch...

How Can Ingesting Silver Turn Your Skin Blue
2012-10-31 04:28:31

April Flowers for redOrbit.com - Your Universe Online When is your skin like a black and white photograph? Sounds like the start to a bad riddle, right? Instead, it's the essential question behind a new study from Brown University. The study shows, for the first time, how ingesting too much silver can cause argyria, which is a rare condition that turns a patient's skin a striking shade of grayish blue. "It's the first conceptual model giving the whole picture of how one develops this...

Silver Nanoparticle Synthesis With Help Of Strawberry Tree Leaf
2012-07-11 18:24:05

A team of researchers from Greece and Spain have managed to synthesize silver nanoparticles, which are of great interest thanks to their application in biotechnology, by using strawberry tree leaf extract. The new technology is ecological, simple, cheap and very fast. Strawberry tree leaf (Arbutus unedo) and silver nitrate (AgNO3). With just these two ingredients scientists can now produce silver nanoparticles, a material that is used in advanced technologies from compounds for...

2012-06-07 09:01:39

Many organic contaminants in the air and in drinking water need to be detected at very low-level concentrations. Research published by the laboratory of Prashant V. Kamat, the John A. Zahm Professor of Science at the University of Notre Dame, could be beneficial in detecting those contaminants. The Kamat laboratory uses Surface-Enhanced Raman Spectroscopy to make use of silver nanoparticles to increase the sensitivity limit of chemical detection. Researchers in this study have prepared a...

2012-03-08 13:40:19

Yeasts which cause hard-to-treat mouth infections are killed using silver nanoparticles in the laboratory, scientists have found. These yeast infections, caused by Candida albicans and Candida glabrata target the young, old and immuno-compromised. Professor Mariana Henriques, University of Minho, and her colleagues hope to test silver nanoparticles in mouthwash and dentures as a potential preventative measure against these infections. Professor Henriques and her team, who published their...

da5d823fb3f50021162ae893e3c21c47
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...


Word of the Day
endocarp
  • The hard inner (usually woody) layer of the pericarp of some fruits (as peaches or plums or cherries or olives) that contains the seed.
This word comes from the Greek 'endon,' in, within, plus the Greek 'kardia,' heart.
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