Consequences of Nanoparticle - Insecticides on Aquatic and  Terrestrial Non - Target Organisms: A Review

Nickel nanoparticles (Ni-NPs) have advantageous applications in the industry; however, little is known of their adverse effects on biological tissues. In the present study, the ground beetle Blaps polycresta was employed as a sensitive indicator for nickel oxide nanoparticles (NiO-NPs) toxicity. Adult male beetles were injected with six dose levels of NiO-NPs (0.01, 0.02, 0.03, 0.04, 0.05, and 0.06 mg/g body weight). Mortality was reported daily over 30 days under laboratory conditions to establish an LD50. Nickel was detected in the testicular tissues of the beetles using X-ray analysis and transmission electronic microscopy. Beetles treated with the sublethal dose of 0.02 mg/g were selected to observe molecular, cellular, and subcellular changes. Gene transcripts of HSP70, HSP90, and MT1 were found to be increased >2.5-, 1.5-, and 2-fold, respectively, in the treated group compared with the controls. Decreased gene expression of AcPC01, AcPC02, and AcPC04 (≤1.5-, ≤2-, and < 2.5-fold, respectively, vs. controls) also were reported in the treated group. Under light microscopy, various structural changes were observed in the testicular tissues of the treated beetles. Ultrastructure observations using scanning and transmission electron microscopy showed severe damage to the subcellular organelles as well as deformities of the heads and flagella of the spermatozoa. Therefore, the present study postulated the impact of NiO-NPs in an ecological model.

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“…Due to the existence of nanotechnology, nanomaterial has been widely used in medicine and in consumer products (Riat, 2018).…”

Section: Introductionmentioning

confidence: 99%

Nickel oxide nanoparticles induce genotoxicity and cellular alterations in the ground beetleBlaps polycresta(Coleoptera: Tenebrionidae)

et al. 2021

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Toxicity Assessment of FeTiO2 and NiFe2O4 Nanoparticles on Aquatic Catfish (Siluriformes)

Tentu

Parvatamma²,

Hussain

et al. 2019

CNM

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Background: The aquatic toxicity of Iron doped titanium dioxide nanoparticles (FeTiO2 NPs) with an average particle size of 15 nm and a Nickel ferrite nanoparticle (NiFe2O4 NPs) with an average particle size of 12 nm on catfish in water was investigated. Objective: The goal of this work is i) The synthesis and characterization of FeTiO2 NPs and NiFe2O4 NPs, ii) To prepare the different concentrations of FeTiO2 NPs and NiFe2O4 NPs, iii) Different concentrations of NPs exposure to aquatic catfish. Methods: The study was conducted with different dose rates of the NPs in the water at ambient temperature for a period of four days. During this period, abnormal behavior and mortality were observed by visual examination. The selected dose range of FeTiO2 NPs and NiFe2O4 NPs were 0.1 to 100 mg/L in water. Results: The lethal concentration for FeTiO2 NPs is > 100 mg/L and NiFe2O4 NPs were 48.6 mg/L. During the study period, abnormal behaviors such as loss of equilibrium, pigmentation, and lying down at the bottom of the aquaria were observed. Conclusion: The toxicity study of nanoparticles conducted on fish indicated that the NiFe2O4 NPs exhibited higher toxicity as compared to the FeTiO2 NPs.

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Consequences of Nanoparticle - Insecticides on Aquatic and Terrestrial Non - Target Organisms: A Review

Cited by 2 publications

References 32 publications

Nickel oxide nanoparticles induce genotoxicity and cellular alterations in the ground beetleBlaps polycresta(Coleoptera: Tenebrionidae)

Nickel oxide nanoparticles induce genotoxicity and cellular alterations in the ground beetleBlaps polycresta(Coleoptera: Tenebrionidae)

Toxicity Assessment of FeTiO2 and NiFe2O4 Nanoparticles on Aquatic Catfish (Siluriformes)

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