Effect of TiO<sub>2</sub> nanoparticles and multiwall carbon nanotubes on the freshwater diatom <i>Nitzschia frustulum</i>: evaluation of growth, cellular components and morphology

Jia, Kun; Sun, Chenglong; Wang, Yulin; Li, Xin; Mu, Weijie; Fan, Yawen

doi:10.1080/02757540.2018.1528240

Cited by 16 publications

(4 citation statements)

References 62 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Aquatic organisms such as microalgae species are known as reliable research objects in toxicology, and they are one of the most commonly used organisms in aquatic toxicity assessment of NPs [40][41][42][43]. Previous research has established that carbon nanotubes could cause changes in biochemical composition of microalgae [44], could attach to or penetrate algal cells [45], and the NPs may become involved in the transfer between the levels of food chain [46]. In contrast to carbon nanotubes, there is much less information about effects of carbon nanofibers and silica nanotubes on microalgae [41].…”

Section: Introductionmentioning

confidence: 99%

Comparison of the Level and Mechanisms of Toxicity of Carbon Nanotubes, Carbon Nanofibers, and Silicon Nanotubes in Bioassay with Four Marine Microalgae

et al. 2020

View full text Add to dashboard Cite

Nanoparticles (NPs) have various applications in medicine, cosmetics, optics, catalysis, environmental purification, and other areas nowadays. With an increasing annual production of NPs, the risks of their harmful influence to the environment and human health is rising. Currently, our knowledge about the mechanisms of interaction between NPs and living organisms is limited. Additionally, poor understanding of how physical and chemical characteristic and different conditions influence the toxicity of NPs restrict our attempts to develop the standards and regulations which might allow us to maintain safe living conditions. The marine species and their habitat environment are under continuous stress due to anthropogenic activities which result in the appearance of NPs in the aquatic environment. Our study aimed to evaluate and compare biochemical effects caused by the influence of different types of carbon nanotubes, carbon nanofibers, and silica nanotubes on four marine microalgae species. We evaluated the changes in growth-rate, esterase activity, membrane polarization, and size changes of microalgae cells using flow cytometry method. Our results demonstrated that toxic effects caused by the carbon nanotubes strongly correlated with the content of heavy metal impurities in the NPs. More hydrophobic carbon NPs with less ordered structure had a higher impact on the red microalgae P. purpureum because of higher adherence between the particles and mucous covering of the algae. Silica NPs caused significant inhibition of microalgae growth-rate predominantly produced by mechanical influence.

show abstract

Section: Introductionmentioning

confidence: 99%

Comparison of the Level and Mechanisms of Toxicity of Carbon Nanotubes, Carbon Nanofibers, and Silicon Nanotubes in Bioassay with Four Marine Microalgae

et al. 2020

View full text Add to dashboard Cite

show abstract

“…Chlorophyll a (Chl-a) content is an e cient indicator of microalgal stress(Jia et al, 2018) and Chlorella vulgaris growth(Sun et al, 2020b). During the experiment, Chlorella vulgaris Chl-a contents accumulated gradually due to the rapid growth rate and peaked on the 7th day.…”

mentioning

confidence: 99%

Nutrient and Tetracycline Removal From Simulated Biogas Slurry and Biogas Upgrading by Microalgae Cultivation Under Different Carbon Nanotubes Concentration

Sun

Zhao

Sun

et al. 2021

Preprint

View full text Add to dashboard Cite

The present study aimed to determine the effects of multi-walled carbon nanotubes (MWCNTs) concentrations (0, 0.1, 1, 5, 10 mg·L− 1) on tetracycline (TC) and biogas slurry nutrients removal by microalgae Chlorella vulgaris cultivation. Treatments with 1 mg·L− 1 MWCNTs yielded maximum dry weight and cells quantity of 0.81 ± 0.008 g·L− 1 and 5.83×107 cell·L− 1, respectively. The results of chlorophyll a were consistent with rapid fluorescence induction kinetics (OJIP-test), indicating that moderate MWCNTs concentration could enhance microalgal photosynthesis. Maximum chemical oxygen demand (COD), total phosphorus (TP), total nitrogen (TN), tetracycline (TC), and CO2 removal efficiencies were 90.43 ± 5.15%, 78.12 ± 4.33%, 77.07 ± 4.12%, 89.64 ± 3.08%, and 64.26 ± 0.71%, respectively when treated with 1 mg·L− 1 MWCNTs. Of the five MWCNTs concentrations set in this study, the optimal concentration was 1 mg·L− 1 for nutrient and CO2 removal efficiencies. These results indicated that moderate MWCNTs concentrations would promote tetracycline and nutrients removal by enhancing Chlorella vulgaris photosynthesis activity.

show abstract

“…Diatom teratological forms have been recently used in the assessment of nanoparticles toxicity in freshwater environments (Jia et al, 2019). This study conducted on Nitzschia frustulum (Kützing) Grunow in Cleve & Grunow revealed that both titanium dioxide (TiO 2 ) and multi-walled carbon nanotubes (MWCNTs) have significant effects on cell growth.…”

Section: Trace Metalsmentioning

confidence: 99%

Looking back, looking forward: a review of the new literature on diatom teratological forms (2010–2020)

et al. 2021

View full text Add to dashboard Cite

Over the last years, issues concerning diatom teratological forms and environmental stress have received growing interest within the scientific community. Publications on this topic dated back to 1890 and were summarized in a review published in 2009 by the journal Hydrobiologia, accounting for high citation rates (i.e. 117 citations Scopus and 232 citations Google Scholar, October 2020). This wide interest stimulates the authors to further unravel teratological forms significance in the light of the most recent publications (2010–2020). Diatom teratological forms are one of the best individual-level biomarkers since they provide a rapid response to several environmental stressors, including new emerging pollutants. The mechanisms involved in teratological valve likely involve both cytoskeleton and silicon metabolic pathway impairments. However, teratologies do not seem to weaken the reproduction capacity and viability of the affected individuals. We recognized eight types of teratologies as involving different parts of the valve, depending on genus. In order to summarize the information obtained by several years of research, we suggest a four-step procedure aimed at providing a theoretical pathway that researchers should follow to better explain results obtained in next-future studies and representing a starting point for the development of an environmental index based on teratological forms.

show abstract

Effect of TiO₂ nanoparticles and multiwall carbon nanotubes on the freshwater diatom Nitzschia frustulum: evaluation of growth, cellular components and morphology

Cited by 16 publications

References 62 publications

Comparison of the Level and Mechanisms of Toxicity of Carbon Nanotubes, Carbon Nanofibers, and Silicon Nanotubes in Bioassay with Four Marine Microalgae

Comparison of the Level and Mechanisms of Toxicity of Carbon Nanotubes, Carbon Nanofibers, and Silicon Nanotubes in Bioassay with Four Marine Microalgae

Nutrient and Tetracycline Removal From Simulated Biogas Slurry and Biogas Upgrading by Microalgae Cultivation Under Different Carbon Nanotubes Concentration

Looking back, looking forward: a review of the new literature on diatom teratological forms (2010–2020)

Contact Info

Product

Resources

About

Effect of TiO2 nanoparticles and multiwall carbon nanotubes on the freshwater diatom Nitzschia frustulum: evaluation of growth, cellular components and morphology

Cited by 16 publications

References 62 publications

Comparison of the Level and Mechanisms of Toxicity of Carbon Nanotubes, Carbon Nanofibers, and Silicon Nanotubes in Bioassay with Four Marine Microalgae

Comparison of the Level and Mechanisms of Toxicity of Carbon Nanotubes, Carbon Nanofibers, and Silicon Nanotubes in Bioassay with Four Marine Microalgae

Nutrient and Tetracycline Removal From Simulated Biogas Slurry and Biogas Upgrading by Microalgae Cultivation Under Different Carbon Nanotubes Concentration

Looking back, looking forward: a review of the new literature on diatom teratological forms (2010–2020)

Contact Info

Product

Resources

About

Effect of TiO₂ nanoparticles and multiwall carbon nanotubes on the freshwater diatom Nitzschia frustulum: evaluation of growth, cellular components and morphology