NanoRelease

 

The NanoRelease Consumer Products project was initiated in 2011 as an independent, self-organized consortium of experts across stakeholder groups and nations to explore gaps in data and methods to characterize potential exposure from consumer applications of nanofillers.  The initial gaps identified by the project (Froggett et al 2014; Kaiser et al 2014) included lack of analytic methods to quantitatively characterize the elements of released materials that were relevant to understanding occurrence or variation in biologically relevant dose caused by addition of nanofillers.  The project further elaborated variation in materials (Kingston et al 2014) and life cycle stages (Nowack et al 2014) with respect to the anticipated release rates and release mechanisms for which analytic methods should be specified.  The project also identified variation in sampling and analytic methods across published and ongoing studies of release (Canady et al 2014; Harper et al 2015) that indicated a first order need to understand the effects of sample generation and handling methods on the nature of released materials prior to proceeding with analytic methods development.  As a result the project initiated inter-laboratory protocol development for a model nanofiller in polymers. Supported by the inter-laboratory testing accomplishments, a NWIP was initiated in ISO TC229.

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