Toxic Effects of Metal Nanoparticles in Marine Invertebrates

abstract

The extensive use of nanomaterials, namely metal and metal oxide nanoparticles (NPs), in a variety of application areas—such as electronics, medicine, energy, environment, industry, information, security, among others—leads to the end-up of these materials into the aquatic environments. Once there, NPs accumulate in organisms and may amplify along the food chain, inducing effects on these organisms and humans. Due to the relevance of this issue, works concerning NPs potential effects to the aquatic organisms have been published in the literature. This chapter starts to explore the main applications and the synthesis methods of NPs, as well as their impact in the environment. Then, common parameters used to evaluate ecotoxicological impacts are described. Lastly, research undertaken on the biological toxic impacts of titanium dioxide, zinc oxide and silver NPs in marine invertebrates is reviewed, based on the most recent literature. The selection of these NPs was based on the evaluation of nanomaterials most used in consumer products.

authors

Almeida, J. C.; Cardoso, C. E. D.; Pereira, E.; Freitas, R.

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