2025 Annual Report
Annual Report
January 2026 news from the Sec Gen
News

January 2026 news from the Sec Gen

Dear colleagues and friends,As we begin a new year, I would like to thank you for your continued engagement and trust in ECETOC. 2026 promises to be an exciting and dynamic year, and I am pleased...
ECETOC launches Secondee Programme
News

ECETOC launches Secondee Programme

Looking for an extra challenge? A next step to help develop your career? Consider applying for our Secondee Programme!ECETOC is looking for early-career scientists currently working at a member co...
HSSD Tool

HSSD Tool

This software was developed by a consortium of partners to facilitate the uptake of novel approaches to estimate aquatic threshold concentrations (e.g. the concentration at which 5% of the species are exposed above their EC50, HC5).
The Human Exposure Assessment Tools Database (heatDB)

The Human Exposure Assessment Tools Database (heatDB)

heatdb is a public directory of exposure data sources as well as available tools for exposure
NanoApp

NanoApp

ECETOC’s NanoApp is a tool designed to define the boundaries of sets of similar nanoforms and to generate a justification for the REACH registration.
Targeted Risk Assessment (TRA)

Targeted Risk Assessment (TRA)

The Targeted Risk Assessment (TRA) estimates exposures to workers, consumers and the environment that arise during a series of events.
Chronic fish case studies towards an IATA

Chronic fish case studies towards an IATA

Why?Hazard and safety assessments for the pelagic compartment often rely on in vivo studies using a single fish species, raising ethical concerns and uncertainty in terms of extrapolation....
Estimating the environmental release of Synthetic Polymeric Microparticles from Products

Estimating the environmental release of Synthetic Polymeric Microparticles from Products

Why?REACH restriction: SPM use restricted; emissions reporting required by May 2027. Gap: No analytical methods available to measure SPM emissions. Solution: Draft SPERC-based approac...
Case Studies on Reliability and Relevance Considerations during Validation of NAMs

Case Studies on Reliability and Relevance Considerations during Validation of NAMs

Why?Validation of NAMs is often overlooked despite its importance for regulatory use. Traditional validation methods are less suitable for NAMs, which focus on key events rather than apical...
Article
01.04.2015

A decision-making framework for the grouping and testing of nanomaterials (DF4nanoGrouping)

The safety of nanomaterials can be ensured by undertaking animal testing only as a very last resort. This is the premise and promise of the Decision-making framework for the grouping and testing of nanomaterials - DF4nanoGrouping. The ECETOC Nano Task Force has developed the DF4nanoGrouping based upon an earlier review of existing approaches for the grouping and testing of nanomaterials published in summer 2014.

Science-based grouping approaches allow the prediction of a substance?s toxicity by comparing it to other similar substances. Thereby, the safety of substances may be determined while considerably saving time, money and animal experimentation. However, the grouping of nanomaterials is more complex than that of ?conventional? substances. It requires the joint consideration of physical, chemical and biological properties. Due to this complexity, to date, a unified, comprehensive grouping concept for nanomaterials has not been available. DF4nanoGrouping helps close this severe knowledge gap for hazard and risk assessment.

In three tiers, DF4nanoGrouping takes into consideration all relevant properties of nanomaterials. Step-by-step, potential hazards are ruled out. Safe nanomaterials are identified using non-animal testing, which may then be confirmed applying special animal tests. Further work of the ECETOC Nano Task Force is dedicated to corroborating the applicability of DF4nanoGrouping and promoting its regulatory acceptance.

The ECETOC Nano Task Force Decision-making framework for the grouping and testing of nanomaterials ? DF4nanoGrouping is published as an Open Access article in Regulatory Toxicology and Pharmacology.

Arts J, Hadi M, Irfan MA, Keene AM, Kreiling R, Lyon D, Maier M, Michel K, Petry T, Sauer UG, Warheit D, Wiench K, Wohlleben W, Landsiedel R. 2015
A decision-making framework for the grouping and testing of nanomaterials (DF4nanoGrouping)
Regulatory Toxicology and Pharmacology

(- In press - uncorrected proof - Open Access -)

The following shortcut can be used to download the article from the publisher's website:

http://bit.ly/ecetoc-art2015-arts-et-al

- End of Press Release -


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