Toxicity of silver, copper oxide, and polyethylene nanoparticles on the earthworm Allolobophora caliginosa using multiple biomarkers

Bakr, Zeinab; Abdelwahab, Mohammed; Thabet, Ali; Hamed, Mohamed; El-Aal, Mohamed Abd; Saad, Eman; Faheem, Mehwish; Sayed, Alaa El‐Din H.

doi:10.1016/j.apsoil.2022.104681

Cited by 15 publications

(5 citation statements)

References 90 publications

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“…Using traditional OCED artificial soils as the exposure substrate in the field of nano-toxicology was very common and even frequently appeared in recent peerreviewed studies (Bakr et al, 2023;Gao et al, 2023). Therefore, the OECD soil was also applied in this study according to the standard earthworm toxicity guideline (OECD, 1984).…”

Section: Test Soils Earthworms and Agnpsmentioning

confidence: 99%

“…SOD and CAT are both universal enzymes, SOD can catalyze the superoxide conversion into oxygen and hydrogen peroxide, while CAT catalyzes the decomposition of hydrogen peroxide to water and oxygen (Huang et al, 2021b). Except for SOD and CAT, many published papers also reported other sensitive antioxidant biomarkers, like malondialdehyde (MDA), glutathione S-transferase (GST), and lipid peroxidation (LPO), and it could be concluded that the most of enzyme activities were significantly enhanced with the increase in AgNPs concentrations (Bakr et al, 2023;Li et al, 2022;Singh et al, 2022). In this study, the same concentration (100 mg/kg) was applied in these two different exposure patterns, however, higher Ag bioaccumulation in S100 earthworms could also help to explain their elevated enzyme activities compared with R100 worms.…”

Section: J O U R N a L P R E -P R O O Fmentioning

confidence: 99%

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Impact of progressively cumulative exposure of AgNPs on earthworms (Eisenia fetida) and implication for eco-toxicological risk assessment

et al. 2023

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Section: Test Soils Earthworms and Agnpsmentioning

confidence: 99%

Section: J O U R N a L P R E -P R O O Fmentioning

confidence: 99%

Impact of progressively cumulative exposure of AgNPs on earthworms (Eisenia fetida) and implication for eco-toxicological risk assessment

et al. 2023

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“…In recent years, silver nanoparticles (AgNPs) have received widespread attention [1][2][3]. Due to their stable physical and chemical properties, AgNPs show a better performance than silver in many aspects, and are widely used in textiles, food, water treatment, cosmetics, and other products [4,5].…”

Section: Introductionmentioning

confidence: 99%

“…The colloidal organic matter is an important regulatory factor for the speciation of trace metals in seawater and even their biogeochemical cycling processes. These colloidal organic compounds can form nanoparticles by joining complexes with metals, thereby affecting the biogeochemical cycle of metals [2,7,8]. Dissolved organic matter in the aquatic environment can adsorb on the surface of nanometals and inhibit the aggregation of nanoparticles.…”

Section: Introductionmentioning

confidence: 99%

The Biotoxic Effects of Ag Nanoparticles (AgNPs) on Skeletonema costatum, a Typical Bloom Alga Species in Coastal Areas

Shi,

Yao,

Xue

et al. 2023

JMSE

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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 AgNO3 on Skeletonema costatum in 10, 100, and 500 μg·L−1 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 AgNO3. The antioxidant enzyme (SOD and CAT) activities and lipid peroxidation in Skeletonema costatum 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−1 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.

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“…In general, biomarkers of oxidative stress provide valuable information on the effects of pollutants and serve as an early warning system before measurable effects occur at the individual or population level. Oxidative stress biomarkers have been applied to various soil species, mostly earthworms [30][31][32][33][34][35], enchytraeids [19,[36][37][38][39], arthropods Porcellionides pruinosus [40,41], and Folsomia candida [27,[42][43][44].…”

Section: Introductionmentioning

confidence: 99%

Temporal Dynamics of Biomarker Response in Folsomia candida Exposed to Azoxystrobin

et al. 2023

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Azoxystrobin (AZO) is widely used to prevent and treat fungal diseases in important crops but can also impact non-target organisms, including mammals, amphibians, aquatic, and soil organisms. Collembolans play important roles in ecosystems as decomposers, fungal feeders, and regulators of microbes. This study aimed to investigate the effects of AZO on Collembola Folsomia candida using a reproduction test and assess biomarker responses over different time intervals (3, 5, 7, 14, and 28 days). Results showed AZO negatively affected reproduction at concentrations of 50, 100, and 200 mg./kg, resulting in decreases of 48.3%, 64.5%, and 81.3%, respectively, compared to the control. Adult survival remained unaffected. The estimated EC50 (reproduction) in artificial soil was 61.28 mg kg−1. Biomarker responses varied with concentration and time. Protein and glycogen concentrations increased with exposure time, while lipid content was affected initially but returned to control levels by day 28. Oxidative stress biomarkers (CAT, SOD, GST, TBARS) indicated AZO induced oxidative stress, intensifying over time. After 28 days, MDA concentrations were significantly elevated compared to the control, suggesting the antioxidant system is overwhelmed which caused damage to lipid membranes. This study showed that azoxystrobin caused negative effects at molecular and population level on non-target species of Collembola.

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Toxicity of silver, copper oxide, and polyethylene nanoparticles on the earthworm Allolobophora caliginosa using multiple biomarkers

Cited by 15 publications

References 90 publications

Impact of progressively cumulative exposure of AgNPs on earthworms (Eisenia fetida) and implication for eco-toxicological risk assessment

Impact of progressively cumulative exposure of AgNPs on earthworms (Eisenia fetida) and implication for eco-toxicological risk assessment

The Biotoxic Effects of Ag Nanoparticles (AgNPs) on Skeletonema costatum, a Typical Bloom Alga Species in Coastal Areas

Temporal Dynamics of Biomarker Response in Folsomia candida Exposed to Azoxystrobin

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