nanoparticle News
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Berkeley researchers find new route to nano self-assembly
If the promise of nanotechnology is to be fulfilled, nanoparticles will have to be able to make something of themselves. An important advance towards this goal has been achieved by researchers with the U.S. Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab) who have found a simple and yet powerfully robust way to induce nanoparticles to assemble themselves into complex ...
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NIST scientists quantify nanoparticle-protein interactions
A research team at the National Institute of Standards and Technology (NIST) has quantified the interaction of gold nanoparticles with important proteins found in human blood, an approach that should be useful in the development of nanoparticle-based medical therapies and for better understanding the physical origin of the toxicity of certain nanoparticles. Nanoparticles show promise as vehicles ...
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Potsdam researchers use Malvern Zetasizer Nano in gold nanoparticle research
Researchers at the University of Potsdam, Germany, are using a Zetasizer Nano ZS from Malvern Instruments to measure the dimensions and stability of gold nanoparticles smaller than 5 nm in diameter. Gold has long been considered as an inert element, but in nanoparticulate form it can be very reactive. For particles under 5 nm the surface electrons increasingly dominate the properties of the ...
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First certified reference material for nanoparticle size analysis
The European Commission's Joint Research Centre (JRC) has developed the world's first certified nanoparticle reference material based on industrysourced nanoparticles. This new material will help ensure the comparability of measurements worldwide, thereby facilitating trade, ensuring compliance with legislation and enhancing innovation. Nanotechnology offers a range of benefits over traditional ...
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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 ...
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CD Bioparticles Launches Carboxyl PEG3000 Gold Nanoparticles
With years of experience in the pharmaceutical and life science sector, CD Bioparticles now launches Carboxyl PEG3000 Gold Nanoparticles that are ideal for covalent conjugation of antibodies, proteins and other ligands using standard EDC/NHS coupling chemistry. These new 50 OD carboxyl gold nanoparticles possess a PEG3000 linker, reveal maximum absorbance at 524 nm, and are supplied in USP ...
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Effects of the infinitely small - Are the risks of nanotechnologies appropriatly assessed by current methods?
Engineered particles of nanometre size can have unique properties and very different effects on health and the environment compared to the same material at larger sizes. New or modified methods are needed to better determine the properties of nanoparticles, measure exposure to them, assess their potential hazard, and detect their movement in the body and in the environment. This is one of the ...
By GreenFacts
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ERM-FD103: JRC releases new certified reference material for nanoparticle size and shape analysis
The Joint Research Centre (JRC) of the European Commission (EC) has produced its first Certified Reference Material (CRM) for quality control of measurements of nanoparticle size and shape parameters by electron microscopy. The CRM (ERM-FD103), which has been developed to support the implementation of the EC nanomaterial definition, consists of titanium dioxide nanorods dispersed in butanol. ...
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A Series of Colloidal Materials Newly Launched at Alfa Chemistry: Catalysts, Nanoparticles, and Silica
Earlier this month, Alfa Chemistry unveiled a new product line of colloidal materials for scientists engaged in relevant research providing customers across the globe with easy access to comprehensive colloidal materials, including: colloidal catalysts, colloidal nanoparticles, hydrocolloids, and colloidal silica. "Colloids have unique electrical, optical, magnetic, and biological properties that ...
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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. ...
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Computer simulations shed light on nanosized minerals
The red and blue images appear ghostly, like a fleeting glimpse of something that’s never been seen before — which is true. Using computer simulations, Berkeley Lab scientists have developed the first predicted images of water molecules surrounding a nanoparticle, in this case an iron-oxide mineral called hematite. The simulations indicate that the size and shape of the nanosized mineral ...
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JRC-IRMM releases world's first certified mixture of silica nanoparticles
For the first time a certified reference material containing silica nanoparticles with a distinct bimodal size distribution has been released by JRC-IRMM. It has been designed and produced to support the implementation of the nanomaterial definition recommended by the European Commission (2011/696/EU). The Institute for Reference Materials and Measurements (IRMM) of the European Commission's ...
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JRC releases new certified reference material for nanoparticle size analysis (ERM-FD101b)
The Joint Research Centre (JRC) of the European Commission (EC) has developed a new Certified Reference Material (CRM) for nanoparticle size analysis. The CRM (ERM-FD101b) is a suspension of silica nanoparticles of nominally 85 nm in diameter in an aqueous solution and has been developed to support the implementation of the EC nanomaterial definition. ERM-FD101b is the youngest member of the ...
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Nanocoating on buildings releases potentially toxic particles to the air
Weathering and abrasion are reported to cause titanium dioxide nanoparticles to escape from a self-cleaning coating for buildings. These particles may be toxic to humans and wildlife. The researchers have developed three indicators from the test results to help predict levels of nanoparticle release from these coatings. Photocatalytic coatings containing nano-sized particles of titanium dioxide ...
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Creative Biostructure Released Cryo-EM Based Particle Morphology Analysis Service
Creative Biostructure, a biotechnology company that specialized in providing cost-effective services to scientists in the field of structural biology, now provides cryo-em based particle morphology analysis service for the structural analysis of mixed liposome and exosome nanoparticles. Cryo-electron microscopy (cryo-EM) particle analysis technology has become a new force in structural biology ...
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Nanoscale water treatment needs innovative engineering
Engineering a useable product is the key to making nanotechnology work for water treatment, says Ashok Raichur. The fast-evolving world of nanotechnology captivates researchers in fields ranging from health and nutrition to agriculture and environment. In particular, many developing countries are investigating how nanotechnology might improve access to clean water, with a lot of lab work done ...
By SciDev.Net
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EPA to award US$2m grant for research on nanoparticles and human health
The US Environmental Protection Agency (EPA) is to announce the award of a US$2 million grant to the University of Kentucky to study nanoparticles. This is the largest EPA Science to Achieve Results (STAR) grant ever awarded to the University of Kentucky as well as the largest single grant ever awarded by EPA STAR for nanotechnology research. Nanotechnology is the science of manipulating ...
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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 ...
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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 ...
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OECD Publishes a Number of New Reports in Series on the Safety of Manufactured Nanomaterials, Including Nanosilver Case Study and Gold Nanoparticle Occupational Exposure Assessment in Pilot Scale Facility
In November 2016, the Organization for Economic Cooperation and Development (OECD) published the following new reports in its Series on the Safety of Manufactured Nanomaterials: Toxicokinetics of Manufactured Nanomaterials: Report from the OECD Expert Meeting: As part of its Program on the Safety of Manufactured Nanomaterials, OECD initiated a series of expert meetings to discuss the ...
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