Silver Nanoparticles News and Research

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Silver nanoparticles are made wholly or partly from metallic silver, exist in various shapes, and range 1–100 nm in diameter. Their small size and ability to induce cell death through multiple mechanisms makes them fantastic pharmacological candidates.

INRS researchers explore cellular and molecular mechanisms that affect AgNP particles

Whereas resistance to antibiotics complicates certain treatments, antimicrobial silver nanoparticles (AgNP) are gaining popularity for medical use. These particles are toxic for certain bacteria, but what about for humans? Researchers at INRS-Institut Armand-Frappier Research Centre have taken a step toward understanding the cellular and molecular mechanisms that affect these particles.

19 Feb 2015

New way to combat bacterial biofilm formation with titanium encrusted with gold nanoparticles

Bacteria love to colonize surfaces inside your body, but they have a hard time getting past your rugged, salty skin.

1 Jul 2014

Scientists design nanoparticle to target tumor cells

Scientists at UC Santa Barbara have designed a nanoparticle that has a couple of unique - and important - properties.

9 Jun 2014

Silver nanoparticles in dietary supplements, cosmetics and food packaging can cause damage to cells

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.

28 Feb 2014

Researchers create vaginal cream using silver nanoparticles to control transmition of HIV

The product has proven efficiency in lab tests, although clinical trials are yet to be performed. After discovering that silver nanoparticles are capable of blocking the entry of Human Immunodeficiency Virus (HIV) into the organism, a group of researchers from the University of Texas, in collaboration with Humberto Lara Villegas, specialist in nanoparticles and virology from the University of Monterrey, Mexico (UDEM), create a vaginal cream to control the transmition of the virus.

28 Jan 2014

'Smart' holograms could be used to monitor diabetes, cardiac function, infections

Responsive holograms that change colour in the presence of certain compounds are being developed into portable medical tests and devices, which could be used to monitor conditions such as diabetes, cardiac function, infections, electrolyte or hormone imbalance easily and inexpensively.

23 Jan 2014

Nanomaterials database restructured to improve functionality, add scientific credibility

Nanomaterials are the heart of the smaller, better electronics developed during the last decade, as well as new materials, medical diagnostics and therapeutics, energy storage, and clean water. However, exposure to nanomaterials may have unintended consequences for human health and the environment.

29 Oct 2013

Scientists develop new way to detect threatening nanoparticles in food

Over the last few years, the use of nanomaterials for water treatment, food packaging, pesticides, cosmetics and other industries has increased. For example, farmers have used silver nanoparticles as a pesticide because of their capability to suppress the growth of harmful organisms. However, a growing concern is that these particles could pose a potential health risk to humans and the environment.

23 Aug 2013

Ingestion of nanoparticles at typical environmental levels unlikely to cause overt toxicity

Ingestion of commonly encountered nanoparticles at typical environmental levels is unlikely to cause overt toxicity, according to US researchers. Nevertheless there is insufficient evidence to determine whether chronic exposures could lead to subtle alterations in intestinal immune function, protein profiles, or microbial balance.

27 Jun 2013

EU-funded project examines environmental impact of nanosilver T-shirts

Silver has been used as biocide for medical purposes since the 1930s. Today nanometric size silver particles are used to prevent unpleasant odour caused by bacteria in sport shirts or socks.

15 Apr 2013

New materials mimic mussel adhesive proteins for three medical applications

When it comes to sticking power under wet conditions, marine mussels are hard to beat. They can adhere to virtually all inorganic and organic surfaces, sustaining their tenacious bonds in saltwater, including turbulent tidal environments.

18 Feb 2013

Researchers show how ingesting too much silver can cause argyria

Researchers from Brown University have shown for the first time how ingesting too much silver can cause argyria, a rare condition in which patients' skin turns a striking shade of grayish blue.

31 Oct 2012

Researchers settle controversy over the mechanism by which silver nanoparticles kill bacteria

Rice University researchers have settled a long-standing controversy over the mechanism by which silver nanoparticles, the most widely used nanomaterial in the world, kill bacteria.

12 Jul 2012

Synthesis of silver nanoparticles from pomegranates

Food waste is a growing problem in many parts of the world, but discarded fruit peel, in the case of pomegranates, could be put to good use in the burgeoning field of nanotechnology according to research published in the International Journal of Nanoparticles.

20 Jun 2012

Silver nanoparticles have high affinity for E. coli bacteria

Porous ceramic water filters are often coated with colloidal silver, which prevents the growth of microbes trapped in the micro- and nano-scale pores of the filter. Other metals such as copper and zinc have also been shown to exhibit anti-microbial activity.

25 May 2012

Nanocomposite dental cavity-filling kills harmful bacteria

Scientists using nanotechology at the University of Maryland School of Dentistry have created the first cavity-filling composite that kills harmful bacteria and regenerates tooth structure lost to bacterial decay.

2 May 2012

Silver nanoparticles cause more damage to testicular cells

Silver nanoparticles cause more damage to testicular cells than titanium dioxide nanoparticles, according to a recent study by the Norwegian Institute of Public Health. However, the use of both types may affect testicular cells with possible consequences for fertility.

15 Mar 2012

New UCSB technology can identify cancerous prostate cells

A team of researchers at UC Santa Barbara has developed a breakthrough technology that can be used to discriminate cancerous prostate cells in bodily fluids from those that are healthy.

20 Sep 2011

Researchers develop new inexpensive way of filtering water with 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.

24 Feb 2011

Silver nanoparticle coated 'killer paper' for food packaging

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.

17 Feb 2011