nanoparticle News

  • NIOSH Publishes Chapter on Analysis of Carbon Nanotubes and Nanofibers on Filters by Transmission Electron Microscopy

    The National Institute for Occupational Safety and Health (NIOSH) has published a chapter in the fifth edition of the NIOSH Manual of Analytical Methods (NMAM) entitled “Analysis of Carbon Nanotubes and Nanofibers on Mixed Cellulose Ester Filters by Transmission Electron Microscopy.” The draft chapter provides standardized ...


    By Bergeson & Campbell, P.C.

  • Environmental effects of nanoparticles and nanomaterials

    Pete and I attended the 6th International Meeting on the Environmental Effects of Nanoparticles and Nanomaterials in London last week. The meeting was organised by the Society for Experimental Biology (SEB) and the Society for Environmental Toxicology and Chemistry (SETAC). Plenary presentations were made across three days, with the first day focussing on chemistry, the second day on ...


    By WCA Environment Ltd.

  • Managing exposure to nanoparticles in the workplace

    It is estimated that approximately 2 million workers will be employed in nanotechnology industries worldwide in the next fifteen years. A new study reviews an existing framework of occupational risk management and describes possible methods for controlling exposure to nanomaterials in workplaces. The manufacture and use of nanomaterials is increasing. Although this is creating more jobs, those ...

  • Assessing the ecotoxicological risks of nanoparticles

    A new study highlights the need for more research aimed at understanding the effects of nanoparticles on the environment. Efforts should focus on developing more sensitive analytical methods for characterising and detecting nanoparticles, say the researchers. The study discusses engineered nanoparticles (ENPs), a diverse class of nanoscale particles that do not occur in nature, including ...

  • Nanoparticles decontaminate groundwater

    Since their invention a decade ago at Lehigh University, iron nanoparticles 1,000 times thinner than a human hair have demonstrated an unprecedented ability to clean contaminated groundwater. The palladium-coated particles have remediated more than 50 toxic waste sites in the US and other countries in 10 times faster than traditional pump-and-treat methods. Researchers at Lehigh University have ...


  • Predicting the inflammatory potential of nanoparticles

    New methods to screen nanoparticles for potential toxicity to humans are needed to test the growing number of engineered nanoparticles being developed. A battery of simple tests has been developed that can be used to investigate the potential of nanoparticles to cause lung inflammation and also avoids the need for animal testing. Despite the many benefits of using nanomaterials, concerns have ...

  • Cholera toxin nanoparticle detector

    A complex sugar may become one of the most effective weapons to stop the spread of cholera, a disease that has claimed thousands of lives in Haiti since the devastating earthquake last year. A technique developed by University of Central Florida scientists would allow relief workers to test water sources for contamination with the cholera toxin. In the test, the sugar dextran is coated onto iron ...


  • Ingested nanoparticle safety

    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. Writing in a forthcoming issue of the International Journal of ...


    By Inderscience Publishers

  • Inhaled nanoparticles can enter the bloodstream

    Studies have found that populations who live in areas with polluted air, containing high levels of combustion-derived nanoparticles (fine particulate matter), are more likely to suffer from respiratory and cardiovascular diseases. This has raised concerns that nanoparticles are to blame and that engineered nanoparticles of a similar size could behave in the same way. It is important, therefore, ...

  • Discovering how nanoparticles affect the environment

    Although nanotechnology remains at an early stage of development, engineered nanoparticles are already interacting with fungi, bacteria and algae in natural ecosystems. A recent paper indentifies gaps in our knowledge about this interaction which require intensive attention. Engineered nanoparticles (ENPs) are of a more regular shape and composition than those formed naturally (e.g. by volcanoes) ...

  • Air Monitors launches nanoparticle detector

    Traditional methods for measuring airborne particulate matter measure particle mass per unit air volume, usually with an upper size limit of x microns (PMx etc.). However, from a human health perspective, the particles of most interest are those that penetrate deep into the lungs. For this reason, Air Monitors has launched the Naneos Partector nanoparticle detector in the UK. The Swiss made ...


    By Air Monitors Ltd.

  • Nanoparticles and light can purify water

    Scientists have used nanotechnology to develop a more efficient way of using light to purify water — even in the dark. Light is often used as a water purifier and existing methods rely on processes stimulated by ultraviolet (UV) light. But UV accounts for just five per cent of daylight so a method using visible light — which accounts for almost half — is more desirable. Now researchers from ...


    By SciDev.Net

  • The effects of sunscreen nanoparticles on skin DNA

    A new study indicates that zinc oxide nanoparticles have the potential to cause damage to DNA in human skin cells. These nanoparticles are used as UV filters in sunscreens in many parts of the world, although their use is not yet authorised in Europe (with the exception of one Member State). During the last two years, there has been a rapid growth in the use of nanotechnology, some of which has ...

  • Protecting Workers from Exposure to Engineered Nanoparticles

    Nanotechnology, as defined by the National Institute for Occupational Safety and Health (NIOSH), is the manipulation of matter on a near-atomic scale to produce new structures, materials and devices. This technology promises scientific advancement in sectors including medicine, consumer products, energy, materials and manufacturing. According to the Occupational Safety & Health ...

  • Engineered nanoparticles: Understanding and managing potential risks

    Nanoparticles may be small, but they are at the centre of a huge debate. Nanotechnology has great potential for industry and society, but we need more awareness of the potential impact of manufactured or engineered nanoparticles on human health and the environment to ensure that its products are safe. Although nanotechnology is new, it is expanding quickly and research is needed to understand its ...

  • Are tungsten carbide cobalt nanoparticles harmful to health?

    Nanoparticles of tungsten carbide and tungsten carbide cobalt can enter cultured mammalian cells. These are the findings of a study conducted by researchers from the University of Dresden, the Leipzig-based Helmholtz Centre for Environmental Research and the Fraunhofer Institute for Ceramic Technologies and Systems in Dresden. The results further show that pure tungsten carbide nanoparticles do ...

  • JRC report reviews measurement methods for nanoparticle sizing

    A new report by the European Commission's Joint Research Centre (JRC) presents an in-depth review of methods available to measure the size of nanoparticles. Following the adoption of the definition of the term 'nanomaterial' in October 2011, this report identifies relevant measurement methods and key challenges for measuring nanoparticle size in the regulatory context. The report underlines that ...

  • Using infrared spectroscopy to examine functionalised nanoparticles

    For example, nanoparticles are used in catalysis to improve the production rate in commercial processes, and in electrode structures to develop better batteries. They’re also useful in cosmetics and coatings, and in nanocomposites where the surface properties of the individual nanoparticle influence the behaviour of the entire composite [1]. ...


    By Specac Limited

  • Moving to Protect Workers from Potential Nanoparticle Exposure

    TSI’s NanoScan SMPS Nanoparticle Sizer Measures Airborne Nanoparticle Size Distribution and Concentration The new NanoScan SMPS Nanoparticle Sizer from TSI Incorporated is a small, portable instrument developed to provide an affordable method to measure the size ...


    By TSI Incorporated

  • ReportsnReports - Global Markets for Nanocomposites, Nanoparticles, Nanoclays, and Nanotubes

    Global Markets for Nanocomposites, Nanoparticles, Nanoclays, and Nanotubes Global consumption of nanocomposites was an estimated 118,768 metric tons with a value of over $800 million in 2010. In 2011, the market should reach 138,389 metric tons and $920 million. By 2016, the market should amount to 333,043 metric tons and $2.4 billion, a five year compound annual growth rate (CAGR) ...


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