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Cellular responses of Pacific oyster (Crassostrea gigas) gametes exposed in vitro to polystyrene nanoparticles

Chemosphere 2018 147 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 50 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.
Carmen González-Fernández, Carmen González-Fernández, Carmen González-Fernández, Carmen González-Fernández, Arnaud Huvet Arnaud Huvet Kévin Tallec, Kévin Tallec, Kévin Tallec, Kévin Tallec, Ika Paul-Pont, Ika Paul-Pont, Ika Paul-Pont, Ika Paul-Pont, Kévin Tallec, Kévin Tallec, Ika Paul-Pont, Carmen González-Fernández, Marc Suquet, Ika Paul-Pont, Kévin Tallec, Ika Paul-Pont, Ika Paul-Pont, Ika Paul-Pont, Arnaud Huvet Marc Suquet, Philippe Soudant, Carmen González-Fernández, Carmen González-Fernández, Ika Paul-Pont, Ika Paul-Pont, Ika Paul-Pont, Ika Paul-Pont, Ika Paul-Pont, Kévin Tallec, Ika Paul-Pont, Kévin Tallec, Kévin Tallec, Philippe Soudant, Carmen González-Fernández, Christophe Lambert, Christophe Lambert, Christophe Lambert, Ika Paul-Pont, Arnaud Huvet Ika Paul-Pont, Kévin Tallec, Ika Paul-Pont, Carmen González-Fernández, Arnaud Huvet Nelly Le Goïc, Nelly Le Goïc, Ika Paul-Pont, Ika Paul-Pont, Kévin Tallec, Carmen González-Fernández, Christophe Lambert, Arnaud Huvet Nelly Le Goïc, Nelly Le Goïc, Nelly Le Goïc, Nelly Le Goïc, Philippe Soudant, Carmen González-Fernández, Christophe Lambert, Christophe Lambert, Christophe Lambert, Christophe Lambert, Christophe Lambert, Carmen González-Fernández, Carmen González-Fernández, Christophe Lambert, Arnaud Huvet Christophe Lambert, Christophe Lambert, Arnaud Huvet Arnaud Huvet Ika Paul-Pont, Arnaud Huvet Arnaud Huvet Ika Paul-Pont, Arnaud Huvet Arnaud Huvet Ika Paul-Pont, Arnaud Huvet Arnaud Huvet Mathieu Berchel, Arnaud Huvet Arnaud Huvet Marc Suquet, Marc Suquet, Christophe Lambert, Arnaud Huvet Christophe Lambert, Ika Paul-Pont, Arnaud Huvet Christophe Lambert, Christophe Lambert, Arnaud Huvet Arnaud Huvet Christophe Lambert, Christophe Lambert, Philippe Soudant, Philippe Soudant, Philippe Soudant, Arnaud Huvet Ika Paul-Pont, Arnaud Huvet Ika Paul-Pont, Arnaud Huvet Ika Paul-Pont, Christophe Lambert, Arnaud Huvet Arnaud Huvet Arnaud Huvet Arnaud Huvet Philippe Soudant, Philippe Soudant, Ika Paul-Pont, Kévin Tallec, Arnaud Huvet Philippe Soudant, Philippe Soudant, Nelly Le Goïc, Nelly Le Goïc, Philippe Soudant, Arnaud Huvet Arnaud Huvet Arnaud Huvet Arnaud Huvet Arnaud Huvet Arnaud Huvet Arnaud Huvet Christophe Lambert, Ika Paul-Pont, Ika Paul-Pont, Ika Paul-Pont, Ika Paul-Pont, Ika Paul-Pont, Ika Paul-Pont, Ika Paul-Pont, Ika Paul-Pont, Ika Paul-Pont, Ika Paul-Pont, Philippe Soudant, Philippe Soudant, Philippe Soudant, Philippe Soudant, Philippe Soudant, Nelly Le Goïc, Nelly Le Goïc, Nelly Le Goïc, Nelly Le Goïc, Marc Suquet, Nelly Le Goïc, Nelly Le Goïc, Nelly Le Goïc, Nelly Le Goïc, Marc Suquet, Arnaud Huvet Arnaud Huvet Mathieu Berchel, Arnaud Huvet Arnaud Huvet Arnaud Huvet Arnaud Huvet Arnaud Huvet Philippe Soudant, Philippe Soudant, Philippe Soudant, Philippe Soudant, Ika Paul-Pont, Ika Paul-Pont, Ika Paul-Pont, Christophe Lambert, Christophe Lambert, Christophe Lambert, Christophe Lambert, Christophe Lambert, Kévin Tallec, Ika Paul-Pont, Mathieu Berchel, Mathieu Berchel, Christophe Lambert, Carmen González-Fernández, Ika Paul-Pont, Ika Paul-Pont, Philippe Soudant, Philippe Soudant, Philippe Soudant, Arnaud Huvet Arnaud Huvet Christophe Lambert, Philippe Soudant, Philippe Soudant, Christophe Lambert, Philippe Soudant, Christophe Lambert, Arnaud Huvet Arnaud Huvet Arnaud Huvet Ika Paul-Pont, Philippe Soudant, Philippe Soudant, Arnaud Huvet Philippe Soudant, Arnaud Huvet Arnaud Huvet Nelly Le Goïc, Nelly Le Goïc, Ika Paul-Pont, Ika Paul-Pont, Philippe Soudant, Arnaud Huvet Ika Paul-Pont, Nelly Le Goïc, Ika Paul-Pont, Ika Paul-Pont, Ika Paul-Pont, Arnaud Huvet Arnaud Huvet Christophe Lambert, Christophe Lambert, Arnaud Huvet Philippe Soudant, Ika Paul-Pont, Philippe Soudant, Arnaud Huvet Ika Paul-Pont, Philippe Soudant, Philippe Soudant, Arnaud Huvet Arnaud Huvet Philippe Soudant, Arnaud Huvet Ika Paul-Pont, Arnaud Huvet

Summary

Researchers exposed Pacific oyster gametes to carboxyl- and amine-functionalized polystyrene nanoplastics and found rapid adhesion to both sperm and eggs, with amine-coated particles triggering significant reactive oxygen species production in sperm at high concentrations — demonstrating that nanoplastic surface chemistry determines toxicity and that reproductive cells are affected within hours of exposure.

While the detection and quantification of nano-sized plastic in the environment remains a challenge, the growing number of polymer applications mean that we can expect an increase in the release of nanoplastics into the environment by indirect outputs. Today, very little is known about the impact of nano-sized plastics on marine organisms. Thus, the objective of this study was to investigate the toxicity of polystyrene nanoplastics (NPs) on oyster (Crassostrea gigas) gametes. Spermatozoa and oocytes were exposed to four NPs concentrations ranging from 0.1 to 100 mg L for 1, 3 and 5 h. NPs coated with carboxylic (PS-COOH) and amine groups (PS-NH) were used to determine how surface properties influence the effects of nanoplastics. Results demonstrated the adhesion of NPs to oyster spermatozoa and oocytes as suggested by the increase of relative cell size and complexity measured by flow-cytometry and confirmed by microscopy observations. A significant increase of ROS production was observed in sperm cells upon exposure to 100 mg L PS-COOH, but was not observed with PS-NH, suggesting a differential effect according to the NP-associated functional group. Altogether, these results demonstrate that the effects of NPs occur rapidly, are complex and are possibly associated with the cellular eco-corona, which could modify NPs behaviour and toxicity.

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