Influence of PbS nanoparticle polymer coating on their aggregation behavior and toxicity to the green algae Dunaliella salina

Zamani, Hajar; Moradshahi, Ali; Jahromi, Hamed Dehdashti; Sheikhi, Mohammad Hossein

doi:10.1016/j.aquatox.2014.05.012

Cited by 27 publications

(4 citation statements)

References 57 publications

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“… 42 . In addition to ultrasonication, NPs can be separated from agglomerates by centrifugation 43 and/or filtration 44,45 of the test suspensions. Among these, filtration represents a fast, cost-effective, and simple technique that can be performed at atmospheric pressure.…”

Section: Introductionmentioning

confidence: 99%

Sample preparation considerations for surface and crystalline properties and ecotoxicity of bare and silica-coated magnetite nanoparticles

et al. 2021

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Section: Introductionmentioning

confidence: 99%

Sample preparation considerations for surface and crystalline properties and ecotoxicity of bare and silica-coated magnetite nanoparticles

et al. 2021

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“…Bare-bismuth (Bi) and bismuth ferrite (BiFe) nanoparticles caused low and acute toxicity by damaging the cell membrane in HELA and PC-12 cells after short-term exposure; however, the cells recovered after 48h. The lack of toxicity demonstrated by PZT nanoparticles was unexpected since other lead based nanoparticles such as lead sulfide (PbS) showed antifungal activity 32 and decreased cell proliferation in algae Dunaliella salina, 33 furthermore, PbS can induce an inflammatory response in rat lung tissue. 12 The fluorescent imaging analysis using Hoechst and TOPRO-3 to assess nuclear morphology and cell membrane integrity revealed that despite the toxicity of lead, PZT nanoparticles showed no changes in either parameter suggesting that cell viability was maintained after exposure.…”

Section: Bnt-bt and Pzt Nanoparticle Exposure Does Not Exert Cytotoximentioning

confidence: 99%

Bismuth-based nanoparticles as the environmentally friendly replacement for lead-based piezoelectrics

et al. 2015

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The use of nanotechnology in the piezoelectric industry conveys new concerns about the environmental toxicity related to lead based nanomaterials. Perovskite structured materials are extensively used as piezoelectrics, lead zirconate titanate (PZT) being the primary choice for sensors, actuators, etc., because of its powerful electromechanical conversion. However, during the life cycle of PZT piezoelectrics lead generally leaches into the environment over time, leading to human exposure and potential environmental hazard. Lead-free bismuth based-ferroelectric materials (BNT-BT) are promising substitutes due to their ability to provide all the piezoelectric attributes without leaching toxic material. Yet, little is known about the potential toxicity and interactions of these nanomaterials with biomolecules and their subsequent intracellular localization at the nanoscale. The aim of this study was to compare the biological impact and uptake of lead and bismuth-based piezoelectric nanoparticles in order to present a suitable substitute for the piezoelectric industry. Our results show that BNT-BT and PZT nanoparticles were internalized through the endolysosomal pathway following a first order kinetic, nanoparticles were localized in the lamellar bodies without inducing cell toxicity measured by mitochondrial activity and cell membrane integrity. Furthermore, BNT-BT nanoparticles were more stable as lead-based PZT released 20% more lead ions into cell culture media. Finally, we propose bismuth-based BNT-BT as a suitable candidate for commercial use as they avoid environmental leaching, imposing less risk during manufacturing and in occupational health, beside the high biocompatibility and similar physico-chemical properties.

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“…Ding et al (2017) reported that both chl-a and carotenoid contents in Scenedesmus quadricauda were reduced after exposure to 100 µg L −1 of naproxen [ 49 ]. Similarly, hindered growth and reduced carotenoid content were observed for green algae after exposure to nanoparticles [ 50 , 51 ]. These findings are consistent with our results and suggest that chloroplast is often the target of various environmental stresses.…”

Section: Discussionmentioning

confidence: 99%

Evaluating the Joint Toxicity of Two Benzophenone-Type UV Filters on the Green Alga Chlamydomonas reinhardtii with Response Surface Methodology

Mao

Gin

2018

Toxics

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The widespread occurrence of benzophenone-type ultraviolet (UV) filter has raised the public concerns over the ecotoxicological effects of these chemicals. The present study assessed the joint toxicity of two representative benzophenones, benzophenone-1 (BP-1) and benzophenone-3 (BP-3), on the green alga Chlamydomonas reinhardtii using response surface methodologies (RSM). Specific growth rate and photosynthetic pigments were used as endpoints to evaluate the toxic effects. Generally, exposure to the combined BP-1 and BP-3 negatively affected cell growth and pigments production, with higher inhibitions at higher exposure concentrations. The simultaneous reduction in growth rate and pigments contents indicated that BP-1 and BP-3 regulated the growth of the tested alga by affecting the photosynthesis process. Results also showed that second order polynomial regression models fitted well with experimental results for all endpoints. The obtained regression models further indicated that the effects of the combination stemmed significantly from the linear concentration of BP-1 and BP-3. The overall results demonstrated that RSM could be a useful tool in ecotoxicological studies.

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Influence of PbS nanoparticle polymer coating on their aggregation behavior and toxicity to the green algae Dunaliella salina

Cited by 27 publications

References 57 publications

Sample preparation considerations for surface and crystalline properties and ecotoxicity of bare and silica-coated magnetite nanoparticles

Sample preparation considerations for surface and crystalline properties and ecotoxicity of bare and silica-coated magnetite nanoparticles

Bismuth-based nanoparticles as the environmentally friendly replacement for lead-based piezoelectrics

Evaluating the Joint Toxicity of Two Benzophenone-Type UV Filters on the Green Alga Chlamydomonas reinhardtii with Response Surface Methodology

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