nanoparticle News

  • 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

  • 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 ...

  • 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 ...

  • 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, ...

  • 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

  • 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.

  • 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) ...

  • 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 ...

  • Nickel Nanoparticles Nominated for Listing in Report on Carcinogens

    On September 20, 2013, the National Toxicology Program (NTP) published a Federal Register notice requesting information on 20 substances, mixtures, and exposure circumstances, including nickel nanoparticles, nominated for possible review for future editions of the Report on Carcinogens (RoC). NTP seeks information ...


    By Bergeson & Campbell, P.C.

  • Escaped nanoparticles hazardous to crops, says study

    Nanoparticles that escape during the manufacture and use of consumer products would substantially reduce the growth of wheat were they to end up in soil, according to Chinese scientists. The production, use and disposal of nanomaterials from sectors such as cosmetics and electronics can lead to their release into air, water and soil. Their presence in wastewater, and their direct use in ...


    By SciDev.Net

  • Nanoparticles present in residues of waste incineration plant

    The use of nanomaterials in consumer goods is growing, as is their presence in waste. A new study is the first to follow the fate of engineered nanoparticles through the entire waste incineration chain. The results indicate current filter technology is effective in removing nanoparticles from flue gas, but that nanoparticles also bind to residues, such as fly ash and slag, which eventually end up ...

  • Polystyrene nanoparticles affect fish behaviour and metabolism

    Fish fed polystyrene nanoparticles are less active and show changes to their brains and metabolism, according to a study by Swedish and Danish researchers. The findings suggest that nanoparticles in the environment could have a major impact on fish and aquatic ecosystems. Nanoparticles are increasingly used in consumer products, such as cosmetics, and enter the environment via sewage systems. ...

  • 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 ...

  • 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

  • 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 ...

  • Do nanoparticles affect the health of the soil ecosystem?

    New research reveals that many microorganisms, including bacteria and protozoa, show little sensitivity to fullerene nanoparticles applied to soil samples. However, fast-growing bacteria decreased in number and the genetic diversity of bacteria and protozoa altered slightly. This could affect the bottom of the food chain, which may have long-term implications for the overall health of the soil ...

  • testo DiSCmini - The smallest nanoparticle counter in the world

    The Diffusion Size Classifier testo DiSCmini is a handheld sensor for the measurement of nanoparticle number, average diameter and lung-deposited surface area LDSA with a time resolution of up to 1 second (1Hz). The measuring principle is based on electrical charging of the aerosols. The small size of the testo DiSCmini makes the instrument particularly suitable for personal carry-on ...


    By Testo SE & Co. KGaA

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