Stefan Weigel, RIKILT

Title: NanoDefine - How to find out if your product falls under the EC definition of nanomaterial
Session: Tuesday 6 October, 15:15


The NanoDefine project is set up to establish analytical tools and guidance on their use that support the implementation the EC recommendation on the definition of a nanomaterial. It undertakes a comprehensive evaluation of existing methodologies, innovates instruments and software and develops validated measurement methods that are robust, readily implementable, cost-efficient and capable of reliably measuring the size and numbers of particles in the range of 1 - 100 nm and above, with different shapes, coatings and a wide range of chemical composition, in industrial materials and consumer products. Practical case studies will assess their applicability for various sectors, including pigments and fillers, food, cosmetics.

One major outcome of the project will be the establishment of an integrated tiered approach including rapid screening methods (tier 1) and sophisticated methods for complex samples (tier 2), with a manual to guide end-users, such as material manufacturers, regulatory bodies and contract laboratories, to implement the developed methodology. A final product will be the NanoDefiner e-tool: a decision framework including a standardised semi-automated procedure for the selection of appropriate methods and material classification (nano/non-nano) according to the definition. Selected methods will be validated in interlaboratory studies and submitted as work items to become standard methods under CEN or ISO.

NanoDefine thus provides tools and guidance to support innovators and manufacturers to conduct a reliable and cost-efficient classification of both innovative and legacy materials, e.g. for registration under REACH or other regulations.






Stefan Weigel currently works at RIKILT – Wageningen UR (NL) with a focus on the analysis of nanoparticles in complex matrices. He is coordinator of the EU FP7 project NanoDefine ("Development of an integrated approach based on validated and standardized methods to support the implementation of the EC recommendation for a definition of nanomaterials") and has been coordinating the FP7 project NanoLyse ("Analytical methods for detection and characterisation of engineered nanoparticles in food"). He was member of the European Food Safety Authority (EFSA) Scientific Committee's working group on nanotechnologies for food and feed applications and contributes to the EFSA Network on Risk Assessment of Nanotechnologies in Food and Feed as an external expert.

Stefan Weigel graduated in Chemistry at the University of Hamburg/Germany where he also obtained a PhD degree in Analytical Chemistry. At Eurofins | Wiertz-Eggert-Jörissen (Hamburg/Germany), part of the international Eurofins Scientific group, he was responsible for coordination and management of research and development activities for the analysis of residues and contaminants. He was also head of the Eurofins Technology Transfer and Training Centre, facilitating the start-up and expansion of laboratories in Asia, Eastern Europe and Latin America.




NanoCity 2015
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