The Biotoxic Effects of Ag Nanoparticles (AgNPs) on <i>Skeletonema costatum</i>, a Typical Bloom Alga Species in Coastal Areas
With the rapid development of nanotechnology, nanomaterials have been widely utilized in many industries and daily life applications due to their unique properties. However, their potential release and the human health/environmental consequences have raised public concern greatly. In this study, we...
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| Format: | Article |
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MDPI AG
2023-10-01
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| Series: | Journal of Marine Science and Engineering |
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| Online Access: | https://www.mdpi.com/2077-1312/11/10/1941 |
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| author | Ke Shi Yuehong Yao Jianliang Xue Dongle Cheng Bo Wang |
| author_facet | Ke Shi Yuehong Yao Jianliang Xue Dongle Cheng Bo Wang |
| author_sort | Ke Shi |
| collection | DOAJ |
| description | With the rapid development of nanotechnology, nanomaterials have been widely utilized in many industries and daily life applications due to their unique properties. However, their potential release and the human health/environmental consequences have raised public concern greatly. In this study, we compared the toxic effects of AgNPs and AgNO<sub>3</sub> on <i>Skeletonema costatum</i> in 10, 100, and 500 μg·L<sup>−1</sup> Ag treatments. In all the AgNP exposure experiments, cell membrane damage and growth inhibition occurred. However, the cellular damage only obviously appears on exposure to a high concentration of AgNO<sub>3</sub>. The antioxidant enzyme (SOD and CAT) activities and lipid peroxidation in <i>Skeletonema costatum</i> were also induced significantly in the AgNP treatments. In addition, the percentage of Ag release in seawater increased with the increase in AgNP concentrations (13%, 32% for 100 and 500 μg·L<sup>−1</sup> AgNPs). Thus, the biotoxic effects of AgNPs were found to be due to a combination of the solubilization of particles into toxic metal ions and the nature of the nanoparticles. It was worth noting that the induction of oxidative stress and damage to the cell membrane comprised the dominant mechanism of toxicity for AgNPs. Therefore, the behavior of nanometals in seawater affects the biotoxic effect on the phytoplankton. These results shed light on the biological toxicity of nanometals and their possible toxicity mechanism. |
| first_indexed | 2024-03-10T21:09:01Z |
| format | Article |
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| institution | Directory Open Access Journal |
| issn | 2077-1312 |
| language | English |
| last_indexed | 2024-03-10T21:09:01Z |
| publishDate | 2023-10-01 |
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| series | Journal of Marine Science and Engineering |
| spelling | doaj.art-94014555467d48a78f4fddd2bfe106302023-11-19T16:58:52ZengMDPI AGJournal of Marine Science and Engineering2077-13122023-10-011110194110.3390/jmse11101941The Biotoxic Effects of Ag Nanoparticles (AgNPs) on <i>Skeletonema costatum</i>, a Typical Bloom Alga Species in Coastal AreasKe Shi0Yuehong Yao1Jianliang Xue2Dongle Cheng3Bo Wang4College of Safety and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, ChinaCollege of Safety and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, ChinaCollege of Safety and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, ChinaCollege of Safety and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, ChinaCollege of Safety and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, ChinaWith the rapid development of nanotechnology, nanomaterials have been widely utilized in many industries and daily life applications due to their unique properties. However, their potential release and the human health/environmental consequences have raised public concern greatly. In this study, we compared the toxic effects of AgNPs and AgNO<sub>3</sub> on <i>Skeletonema costatum</i> in 10, 100, and 500 μg·L<sup>−1</sup> Ag treatments. In all the AgNP exposure experiments, cell membrane damage and growth inhibition occurred. However, the cellular damage only obviously appears on exposure to a high concentration of AgNO<sub>3</sub>. The antioxidant enzyme (SOD and CAT) activities and lipid peroxidation in <i>Skeletonema costatum</i> were also induced significantly in the AgNP treatments. In addition, the percentage of Ag release in seawater increased with the increase in AgNP concentrations (13%, 32% for 100 and 500 μg·L<sup>−1</sup> AgNPs). Thus, the biotoxic effects of AgNPs were found to be due to a combination of the solubilization of particles into toxic metal ions and the nature of the nanoparticles. It was worth noting that the induction of oxidative stress and damage to the cell membrane comprised the dominant mechanism of toxicity for AgNPs. Therefore, the behavior of nanometals in seawater affects the biotoxic effect on the phytoplankton. These results shed light on the biological toxicity of nanometals and their possible toxicity mechanism.https://www.mdpi.com/2077-1312/11/10/1941biotoxicAgNPssoluble Ag releaseoxidative stress<i>Skeletonema costatum</i> |
| spellingShingle | Ke Shi Yuehong Yao Jianliang Xue Dongle Cheng Bo Wang The Biotoxic Effects of Ag Nanoparticles (AgNPs) on <i>Skeletonema costatum</i>, a Typical Bloom Alga Species in Coastal Areas Journal of Marine Science and Engineering biotoxic AgNPs soluble Ag release oxidative stress <i>Skeletonema costatum</i> |
| title | The Biotoxic Effects of Ag Nanoparticles (AgNPs) on <i>Skeletonema costatum</i>, a Typical Bloom Alga Species in Coastal Areas |
| title_full | The Biotoxic Effects of Ag Nanoparticles (AgNPs) on <i>Skeletonema costatum</i>, a Typical Bloom Alga Species in Coastal Areas |
| title_fullStr | The Biotoxic Effects of Ag Nanoparticles (AgNPs) on <i>Skeletonema costatum</i>, a Typical Bloom Alga Species in Coastal Areas |
| title_full_unstemmed | The Biotoxic Effects of Ag Nanoparticles (AgNPs) on <i>Skeletonema costatum</i>, a Typical Bloom Alga Species in Coastal Areas |
| title_short | The Biotoxic Effects of Ag Nanoparticles (AgNPs) on <i>Skeletonema costatum</i>, a Typical Bloom Alga Species in Coastal Areas |
| title_sort | biotoxic effects of ag nanoparticles agnps on i skeletonema costatum i a typical bloom alga species in coastal areas |
| topic | biotoxic AgNPs soluble Ag release oxidative stress <i>Skeletonema costatum</i> |
| url | https://www.mdpi.com/2077-1312/11/10/1941 |
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