NIA member Yordas has authored a EUON Nanopinion article exploring REACH obligations for multi-component nanomaterials. The publication examines regulatory complexity of these advanced materials, composed of several nano-constituents with properties differing from individual components.
The OECD has opened a public consultation on its draft Test Guideline for determining solubility and dissolution rates of nanomaterials in environmental fate assessments. The consultation runs until November 11, 2025. The draft guideline provides methods to measure apparent solubility over 24 hours and dissolution rates up to 72 hours across pH ranges of 5-8. The protocol consists of Part A (batch test for solubility) and Part B (time-resolved batch test for dissolution rate). The methods aim…
Read MoreThe NIA Board has approved the establishment of a new Special Purpose Committee dedicated to Carbon Nanotubes (CNTs). While CNTs offer tremendous potential across diverse sectors and applications, certain challenges persist, including their controversial inclusion on the CHEMSEC SIN List. Committee Mission This specialized committee will develop a comprehensive NIA position on CNTs for engagement with external stakeholders, including potential end users and regulatory bodies. Beyond addressing…
Read MoreThe OECD has released guidance on assessing apparent accumulation potential of nanomaterials in fish using Test Guideline 305. Spain developed the document with support from France and the UK, receiving OECD Working Party approval in April 2025. The guidance addresses the specific challenges of nanomaterial bioaccumulation studies. Traditional octanol-water partitioning approaches are inappropriate for particles, so the document recommends decision trees, dispersion stability pre-tests, and…
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