Comparing the toxicity of tungsten and vanadium oxide nanoparticles on Spirulina platensis

Padash, Akbar; Giglou, Rasoul Heydarnajad; Giglou, Mousa Torabi; Azarmi, Rasoul; Mokhtari, Abdelrhani; Gohari, Gholamreza; Amini, Mojtaba; Cruz, Cristina; Ghorbanpour, Mansour

doi:10.1007/s11356-023-25461-3

Cited by 3 publications

(1 citation statement)

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“…Recently, the capability of four microalgae in the bioremoval of V 2 O 5 has been assessed, and only Nannochloropsis oculata showed high absorption efficiency (Kim et al 2022). Moreover, the negative impacts of vanadium oxide nanoparticles on the protein and pigment content of the cyanobacterium Spirulina platensis have been recognized (Padash et al 2023). Thus, a substantial approach is necessary to contribute more information towards the harmful effects of V 2 O 5 NPs on algal cells.…”

Section: Introductionmentioning

confidence: 99%

Defense responses of the green microalgae Chlorella vulgaris to the vanadium pentoxide nanoparticles

Kalehjahi,

Kosari-Nasab,

Amini

et al. 2023

OandHS

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Although vanadium-based nanomaterials have found extensive use in industry, their influence on ecosystems and living organisms is not yet well investigated. In this study, hydrothermal methods were utilized for the synthesis of vanadium pentoxide nanoparticles (V2 O5 NPs). The gained NPs were characterized using XRD, FT-IR, EDS, DLS, SEM and TEM techniques. Subsequently, the toxic effects of V2 O5 NPs on the model green microalgae Chlorella vulgaris were evaluated. According to the obtained results, V2 O5 NPs caused a significant reduction in cell number and biomass production of algae in a dose and time dependent manner. Moreover, flow cytometric analysis confirmed a reduction in the quantity of living cells. Scanning electron microscopy showed plasmolysis and deformation of the cells after exposure to nanoparticles. The photosynthetic pigments and phenolics content exhibited a decrease in comparison with the control sample. Although, non-enzymatic antioxidant system in C. vulgaris displayed an average action, antioxidant enzymes, including superoxide dismutase (SOD), catalase (CAT), and ascorbate peroxidase (APX) showed a dose dependent increasing trend. These intercellular reactions designated the activation of the antioxidant defense system in response to the induced oxidative stress by V2 O5 NPs.

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Section: Introductionmentioning

confidence: 99%