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The National Institute of Standards and Technology (NIST) has used the Zetasizer Nano particle characterization system from Malvern Instruments as part of the qualification and assessment process for its new gold nanoparticle reference materials. The three new reference materials, launched in January of this year, were developed in cooperation with the National Cancer Institute's Nanotechnology Characterization Laboratory (NCL). They will facilitate data consistency across pre-clinical biomedical research and accelerated development of methodologies and applications that rely on nanoscale measurements.
Reference Materials (RM) are designed specifically to enable interlaboratory test comparisons. The previous lack of nanoparticle standards, used to verify the accuracy of measurements and ensure that data are robust, has made the advancement of new measurement methods that rely on nanoscale parameters difficult.
Nanotechnology holds the promise of increased speed and efficiency across many analytical systems. The nominal 10, 30 and 60 nanometre gold spheres are the first nanoscale standard references. They represent the advent of much needed standardization at this scale and, by enabling evaluation and qualification of methodologies and instrument performance, should expedite swifter development and approval of novel techniques and applications.
The new RMs were evaluated using six independent methods - atomic force microscopy (AFM), transmission electron microscopy (TEM), scanning electron microscopy (SEM), differential mobility analysis (DMA), dynamic light scattering (DLS - Zetasizer Nano), and small-angle X-ray scattering (SAXS). While NIST neither recommends nor endorses instrumentation, Malvern is pleased to note that the Zetasizer Nano and 3000HS were used in the assessment processes.
About Malvern Instruments Ltd
Malvern Instruments is a global company that develops, manufactures and markets advanced analytical systems used in characterizing a wide variety of materials, from bulk powders to the latest nanomaterials and delicate macromolecules. Innovative technologies and powerful software produce systems that deliver industrially relevant data enabling customers to make the connection between micro (eg particle size) and macro (bulk) material properties (rheology) and chemical composition (chemical imaging). Malvern laboratory, on-line and in-line solutions are proven in sectors from cement to pharmaceuticals and support the understanding, improvement and optimization of many industrial processes.
Headquartered in Malvern, UK, the company has subsidiary organizations in all major European markets, North America, China, Korea and Japan, key partnerships in India, a global distributor network and a number of applications laboratories around the world.
Malvern, Malvern Instruments and Zetasizer are registered trademarks of Malvern Instruments Ltd
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