Environmental safety of nanocellulose: an in vivo acute study with marine mussels Mytilus galloprovincialis
16th International Conference on Environmental Effects of Nanoparticles and Nanomaterials (nano 2023), 5-8 September 2023, Plymouth
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2023-09
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dig-icm-es-10261-3658592024-08-14T07:03:11Z Environmental safety of nanocellulose: an in vivo acute study with marine mussels Mytilus galloprovincialis Rusconi, Tatiana Riva, Laura Punta, Carlo Solé, Montserrat Corsi, Ilaria Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72] 16th International Conference on Environmental Effects of Nanoparticles and Nanomaterials (nano 2023), 5-8 September 2023, Plymouth Nanocellulose (NC) is a biodegradable and renewable material steadily occupying a larger portion of the market and with an increasing higher environmental load that requires a proper safety evaluation. Through sewages and wastewaters, NC will likely end up in the aquatic environment for which limited information in terms of ecotoxicity is currently available. Here investigated the environmental safety of two types of cellulose nanofibers, non-oxidized (CNF) and TEMPO-oxidized (TOCNF), by means of an acute in vivo study (48h) with the marine bivalve Mytilus galloprovincialis exposed to 1 µg L¿1 and 1 mgL¿1 as respectively resembling realistic and acute exposure scenarios. Behavior and changes of NC fibers in waters of different salinities were investigated. Mussel¿s uptake and sub-lethal biological responses (lysosomal membrane stability, neurotoxicity, oxidative stress and biotransformation) were analyzed in mussels. TOCNF resulted more dispersed than CNF in natural sea water (NSW), probably due to higher repulsion among fibers driven by their negative surface charges and colloidal organic material. Both CNF and TOCNF were found in mussel¿s tissues (gills and hemolymph) using labelled stocks thus confirming uptake from seawater. Destabilization of lysosomal membranes of hemocytes, more significant at the lowest concentration tested (1 µg L¿1) was observed and likewise an inhibition of P-gp efflux activities in gills being stronger for CNF at the highest concentration (1 mg L¿1). Cholinergic enzymes (ASCh-ChE activities) resulted inhibited in hemocytes, gills and digestive glands regardless of CNFs oxidation and concentration tested. By contrast, neither oxidative stress nor biotransformation resulted affected in mussel's digestive glands and gills. Overall findings showed CNF uptake by marine mussels and disruption in gills functionality and immune cells by mechanical interaction even at environmentally realistic exposure scenarios. Recent evidence on the presence of textile fibers, mostly made of cellulose, in mussels populating marine coastal areas worldwide raises questions on potential hazard posed by NC and consequences on marine biodiversity. The paucity of data on hazard posed by NC for marine species demands for safety aspects to be considered in future risk assessment scenarios 2024-08-14T06:41:44Z 2024-08-14T06:41:44Z 2023-09 2024-08-14T06:41:44Z comunicación de congreso http://purl.org/coar/resource_type/c_5794 16th International Conference on Environmental Effects of Nanoparticles and Nanomaterials (2023) http://hdl.handle.net/10261/365859 Sí none |
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16th International Conference on Environmental Effects of Nanoparticles and Nanomaterials (nano 2023), 5-8 September 2023, Plymouth |
| author2 |
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72] |
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Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72] Rusconi, Tatiana Riva, Laura Punta, Carlo Solé, Montserrat Corsi, Ilaria |
| format |
comunicación de congreso |
| author |
Rusconi, Tatiana Riva, Laura Punta, Carlo Solé, Montserrat Corsi, Ilaria |
| spellingShingle |
Rusconi, Tatiana Riva, Laura Punta, Carlo Solé, Montserrat Corsi, Ilaria Environmental safety of nanocellulose: an in vivo acute study with marine mussels Mytilus galloprovincialis |
| author_sort |
Rusconi, Tatiana |
| title |
Environmental safety of nanocellulose: an in vivo acute study with marine mussels Mytilus galloprovincialis |
| title_short |
Environmental safety of nanocellulose: an in vivo acute study with marine mussels Mytilus galloprovincialis |
| title_full |
Environmental safety of nanocellulose: an in vivo acute study with marine mussels Mytilus galloprovincialis |
| title_fullStr |
Environmental safety of nanocellulose: an in vivo acute study with marine mussels Mytilus galloprovincialis |
| title_full_unstemmed |
Environmental safety of nanocellulose: an in vivo acute study with marine mussels Mytilus galloprovincialis |
| title_sort |
environmental safety of nanocellulose: an in vivo acute study with marine mussels mytilus galloprovincialis |
| publishDate |
2023-09 |
| url |
http://hdl.handle.net/10261/365859 |
| work_keys_str_mv |
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| _version_ |
1809105058604777472 |