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Environmental Impacts by Fragments Released from Nanoenabled Products: A Multiassay, Multimaterial Exploration by the SUN Approach

Environmental Science & Technology 2018 44 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 45 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.
Mónica J.B. Amorim, Mónica J.B. Amorim, Wendel Wohlleben Janeck J. Scott‐Fordsmand, Frank von der Kammer, Wendel Wohlleben Wendel Wohlleben Wendel Wohlleben Andrea Brunelli, Danail Hristozov, Andrea Brunelli, Andreas Gondikas, Kerstin Hund‐Rinke, Kerstin Hund‐Rinke, Mónica J.B. Amorim, Elena Badetti, Elena Badetti, Sijie Lin, Wendel Wohlleben Frank von der Kammer, Wendel Wohlleben Wendel Wohlleben Wendel Wohlleben Wendel Wohlleben Janeck J. Scott‐Fordsmand, Janeck J. Scott‐Fordsmand, José M. Navas, Andreas Gondikas, Frank von der Kammer, Mónica J.B. Amorim, Mónica J.B. Amorim, Mónica J.B. Amorim, Sijie Lin, Wendel Wohlleben Mónica J.B. Amorim, Mónica J.B. Amorim, Wendel Wohlleben Kerstin Hund‐Rinke, Kerstin Hund‐Rinke, Wendel Wohlleben Wendel Wohlleben Karsten Schlich, Karsten Schlich, Karsten Schlich, Sijie Lin, Frank von der Kammer, Wendel Wohlleben Andrea Brunelli, Sijie Lin, José M. Navas, Wendel Wohlleben Frank von der Kammer, Frank von der Kammer, Frank von der Kammer, Frank von der Kammer, Sijie Lin, Andrea Brunelli, Karsten Schlich, Mónica J.B. Amorim, Janeck J. Scott‐Fordsmand, Andrea Brunelli, Anna Luisa Costa, Sijie Lin, Mónica J.B. Amorim, Mónica J.B. Amorim, Wendel Wohlleben Andreas Gondikas, Andreas Gondikas, Mónica J.B. Amorim, Andreas Gondikas, Wendel Wohlleben Sijie Lin, Anna Luisa Costa, Nicole Neubauer, Nicole Neubauer, Antonio Marcomini, Antonio Marcomini, Kerstin Hund‐Rinke, Frank von der Kammer, Wendel Wohlleben Sijie Lin, Wendel Wohlleben Wendel Wohlleben K. Vilsmeier, K. Vilsmeier, Wendel Wohlleben K. Vilsmeier, K. Vilsmeier, Sijie Lin, Andreas Gondikas, Anna Luisa Costa, Elena Badetti, Elena Badetti, Wendel Wohlleben Sijie Lin, Karsten Schlich, Anna Luisa Costa, Wendel Wohlleben Anna Luisa Costa, Anna Luisa Costa, Anna Luisa Costa, Wendel Wohlleben Anna Luisa Costa, Wendel Wohlleben Janeck J. Scott‐Fordsmand, Danail Hristozov, Wendel Wohlleben Andreas Gondikas, Wendel Wohlleben Wendel Wohlleben Antonio Marcomini, Wendel Wohlleben Tian Xia, Wendel Wohlleben Wendel Wohlleben Liliana Galbis, Kerstin Hund‐Rinke, Wendel Wohlleben Wendel Wohlleben José M. Navas, Wendel Wohlleben Liliana Galbis, Wendel Wohlleben José M. Navas, Elena Badetti, Kerstin Hund‐Rinke, Antonio Marcomini, Danail Hristozov, Wendel Wohlleben Frank von der Kammer, Frank von der Kammer, Frank von der Kammer, Frank von der Kammer, Frank von der Kammer, Kerstin Hund‐Rinke, Janeck J. Scott‐Fordsmand, Frank von der Kammer, André E. Nel, Antonio Marcomini, Wendel Wohlleben Wendel Wohlleben Wendel Wohlleben Wendel Wohlleben

Summary

This study tested whether fragments released from nano-enabled products — materials containing engineered nanoparticles — caused environmental harm, finding that fragment effects were generally lower than those of the embedded nanomaterials alone. The results are relevant to assessing whether degradation of nanomaterial-containing consumer products generates hazardous micro- and nanoscale debris.

Nanoenabled products (NEPs) have numerous outdoor uses in construction, transportation or consumer scenarios, and there is evidence that their fragments are released in the environment at low rates. We hypothesized that the lower surface availability of NEPs fragment reduced their environmental effects with respect to pristine nanomaterials. This hypothesis was explored by testing fragments generated by intentional micronisation ("the SUN approach"; Nowack et al. Meeting the Needs for Released Nanomaterials Required for Further Testing: The SUN Approach. Environmental Science & Technology, 2016 (50), 2747). The NEPs were composed of four matrices (epoxy, polyolefin, polyoxymethylene, and cement) with up to 5% content of three nanomaterials (carbon nanotubes, iron oxide, and organic pigment). Regardless of the type of nanomaterial or matrix used, it was observed that nanomaterials were only partially exposed at the NEP fragment surface, indicating that mostly the intrinsic and extrinsic properties of the matrix drove the NEP fragment toxicity. Ecotoxicity in multiple assays was done covering relevant media from terrestrial to aquatic, including sewage treatment plant (biological activity), soil worms (Enchytraeus crypticus), and fish (zebrafish embryo and larvae and trout cell lines). We designed the studies to explore the possible modulation of ecotoxicity by nanomaterial additives in plastics/polymer/cement, finding none. The results support NEPs grouping by the matrix material regarding ecotoxicological effect during the use phase. Furthermore, control results on nanomaterial-free polymer fragments representing microplastic had no significant adverse effects up to the highest concentration tested.

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