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The effects of solubility of silver nanoparticles, accumulation, and toxicity to the aquatic plant Lemna minor.
Environ Sci Pollut Res Int. 2021 Apr; 28(13):16720-16733.ES

Abstract

The use of silver nanoparticles (AgNPs) in commercial products has increased due to their antibacterial properties and their impacts on the environment must be investigated. This scenario has motivated the conduction of this study, which relates different factors that affect the toxicity of AgNPs to the aquatic plant Lemna minor such as size, accumulation, concentration, and dissolution of AgNPs. To this end, synthesized AgNPs measuring 30, 85, and 110 nm were added into the culture medium to observe toxicity for 30 days. The mapping by SEM showed that the smallest AgNPs can translocate from roots to leaves due to its mobility and internalization. As predicted by the Ostwald equation, the solubility for 30-nm AgNPs increased almost 3 times at the end of 30 days, while for 85 and 110 nm size nanoparticles, after 7 days, the solubility decreased due to "Ostwald ripening" process. Plant mortality was assessed and, after 1 month, the size of 30 nm was the most toxic with negative growth in all studied concentrations, with 60% mortality in the worst case. The concentration of 50 μg mL-1 was toxic in all sizes with negative growth in the period. Therefore, the investigation of AgNPs' toxicity needs to consider a different factor to better understand their effects on aquatic plants and the environment.

Authors+Show Affiliations

Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, 14040-900, Brazil. lilianrosa@alumni.usp.br.Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, 14040-900, Brazil.Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, 14040-900, Brazil.Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, 14040-900, Brazil.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

33398747

Citation

Souza, Lilian R R., et al. "The Effects of Solubility of Silver Nanoparticles, Accumulation, and Toxicity to the Aquatic Plant Lemna Minor." Environmental Science and Pollution Research International, vol. 28, no. 13, 2021, pp. 16720-16733.
Souza LRR, Corrêa TZ, Bruni AT, et al. The effects of solubility of silver nanoparticles, accumulation, and toxicity to the aquatic plant Lemna minor. Environ Sci Pollut Res Int. 2021;28(13):16720-16733.
Souza, L. R. R., Corrêa, T. Z., Bruni, A. T., & da Veiga, M. A. M. S. (2021). The effects of solubility of silver nanoparticles, accumulation, and toxicity to the aquatic plant Lemna minor. Environmental Science and Pollution Research International, 28(13), 16720-16733. https://doi.org/10.1007/s11356-020-11862-1
Souza LRR, et al. The Effects of Solubility of Silver Nanoparticles, Accumulation, and Toxicity to the Aquatic Plant Lemna Minor. Environ Sci Pollut Res Int. 2021;28(13):16720-16733. PubMed PMID: 33398747.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - The effects of solubility of silver nanoparticles, accumulation, and toxicity to the aquatic plant Lemna minor. AU - Souza,Lilian R R, AU - Corrêa,Tuany Z, AU - Bruni,Aline Thaís, AU - da Veiga,Márcia A M S, Y1 - 2021/01/04/ PY - 2020/07/01/received PY - 2020/11/27/accepted PY - 2021/1/6/pubmed PY - 2021/3/23/medline PY - 2021/1/5/entrez KW - AgNPs KW - Aquatic plant KW - Lemna minor KW - Nanoparticle solubility KW - Nanotoxicity KW - Silver nanoparticles SP - 16720 EP - 16733 JF - Environmental science and pollution research international JO - Environ Sci Pollut Res Int VL - 28 IS - 13 N2 - The use of silver nanoparticles (AgNPs) in commercial products has increased due to their antibacterial properties and their impacts on the environment must be investigated. This scenario has motivated the conduction of this study, which relates different factors that affect the toxicity of AgNPs to the aquatic plant Lemna minor such as size, accumulation, concentration, and dissolution of AgNPs. To this end, synthesized AgNPs measuring 30, 85, and 110 nm were added into the culture medium to observe toxicity for 30 days. The mapping by SEM showed that the smallest AgNPs can translocate from roots to leaves due to its mobility and internalization. As predicted by the Ostwald equation, the solubility for 30-nm AgNPs increased almost 3 times at the end of 30 days, while for 85 and 110 nm size nanoparticles, after 7 days, the solubility decreased due to "Ostwald ripening" process. Plant mortality was assessed and, after 1 month, the size of 30 nm was the most toxic with negative growth in all studied concentrations, with 60% mortality in the worst case. The concentration of 50 μg mL-1 was toxic in all sizes with negative growth in the period. Therefore, the investigation of AgNPs' toxicity needs to consider a different factor to better understand their effects on aquatic plants and the environment. SN - 1614-7499 UR - https://www.unboundmedicine.com/medline/citation/33398747/The_effects_of_solubility_of_silver_nanoparticles_accumulation_and_toxicity_to_the_aquatic_plant_Lemna_minor_ L2 - https://dx.doi.org/10.1007/s11356-020-11862-1 DB - PRIME DP - Unbound Medicine ER -