Bioaccumulation, biodistribution, and transformation of polyvinylpyrrolidone-coated silver nanoparticles in edible seaweeds.

Autor: Quarato M; INL - International Iberian Nanotechnology Laboratory, Avda. Mestre Jose Veiga s/n, Braga, Portugal., Rodriguez-Lorenzo L; INL - International Iberian Nanotechnology Laboratory, Avda. Mestre Jose Veiga s/n, Braga, Portugal. Electronic address: laura.rodriguez-lorenzo@inl.int., Pinheiro I; INL - International Iberian Nanotechnology Laboratory, Avda. Mestre Jose Veiga s/n, Braga, Portugal., López-Mayán JJ; GETEE - Trace Element, Spectroscopy and Speciation Group, Institute of Materials iMATUS, Department of Analytical Chemistry, Nutrition and Bromatology, Faculty of Chemistry, Universidade de Santiago de Compostela, Avenida das Ciencias, s/n., 15782 Santiago de Compostela, Spain., Mackey M; Indigo Rock Marine Research, Gearhies, Bantry, Co. Cork P75 AX07, Ireland., Moreda-Piñeiro A; GETEE - Trace Element, Spectroscopy and Speciation Group, Institute of Materials iMATUS, Department of Analytical Chemistry, Nutrition and Bromatology, Faculty of Chemistry, Universidade de Santiago de Compostela, Avenida das Ciencias, s/n., 15782 Santiago de Compostela, Spain., Spuch-Calvar M; CINBIO, Universidade de Vigo - Campus Universitario Lagoas Marcosende, 36310 Vigo, Spain., Maguire J; Indigo Rock Marine Research, Gearhies, Bantry, Co. Cork P75 AX07, Ireland., Bermejo-Barrera P; GETEE - Trace Element, Spectroscopy and Speciation Group, Institute of Materials iMATUS, Department of Analytical Chemistry, Nutrition and Bromatology, Faculty of Chemistry, Universidade de Santiago de Compostela, Avenida das Ciencias, s/n., 15782 Santiago de Compostela, Spain., Correa-Duarte MA; CINBIO, Universidade de Vigo - Campus Universitario Lagoas Marcosende, 36310 Vigo, Spain., Espiña B; INL - International Iberian Nanotechnology Laboratory, Avda. Mestre Jose Veiga s/n, Braga, Portugal. Electronic address: begona.espina@inl.int.
Jazyk: angličtina
Zdroj: The Science of the total environment [Sci Total Environ] 2024 Nov 01; Vol. 949, pp. 174914. Date of Electronic Publication: 2024 Jul 27.
DOI: 10.1016/j.scitotenv.2024.174914
Abstrakt: Seaweeds are recognised as a potential eco-friendly food source. However, some species have shown the capacity to bioaccumulate many substances of diverse nature, such as inorganic nanoparticles (NPs), which may have potentially harmful effects on them. Among these NPs, silver nanoparticles (AgNPs) have been used to enhance the antifungal and antibacterial properties of the final consumer products, such as textiles and food packages. Their potential release into the aquatic environment raises significant concern, increasing the probability of interaction with aquatic biota, such as macroalgae. In this work, we investigated the differences in bioaccumulation, biodistribution, and transformation of NPs as a function of seaweed species. We selected polyvinylpyrrolidone-coated silver nanoparticles (PVP-AgNPs) as model NP since they remain colloidally stable in seawater, focusing the study only on single particles and not on aggregates. The study was conducted on two different seaweed species with high commercial interest and value as human food: the red seaweed Palmaria palmata and the green seaweed Ulva fenestrata. Single-particle inductively coupled plasma mass spectroscopy (spICP-MS) analysis showed high and similar bioaccumulation of PVP-AgNPs in both seaweeds, in the range of 10 9 NPs/g of seaweed. However, electron microscopy with energy-dispersive X-ray analysis demonstrated that their time-dependent distribution and transformation in the algal tissue, mainly dissolution and formation of sulfur-rich corona and/or sulfidation, highly depended on the seaweed type. These results indicate that special attention should be given to the presence and transformation of AgNPs in seaweeds intended for human consumption. Not only the dissolution degree but also the speciation of these NPs could heavily impact their bioaccessibility, bioavailability, biodistribution, and toxicity to humans after ingestion.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2024 The Authors. Published by Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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