Ecotoxicological effects of TiO2 nanoparticulates and bulk Ti on microalgae Chaetoceros muelleri

Baharlooeian, Maedeh; Kerdgari, Mahnaz

doi:10.1016/j.eti.2021.101720

Cited by 18 publications

(4 citation statements)

References 82 publications

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“…Titanium (Ti) is a contaminant of increasing concern, exhibiting increased bioavailability in aquatic environments in recent decades due to increased use in personal care products (toothpaste, conditioner, shampoo, and conditioner) in the form of TiO 2 nanoparticles [37]. Some previous studies had reported Ti could be biomagnified through food webs and bioaccumulated in several aquatic organisms [38][39][40][41][42][43]. The International Agency for Research on Cancer has already classified titanium as "possibly carcinogenic to humans" (Group 2B) because it may pose significant risks to human health [44].…”

Section: Metals Concentration On Each Species Of Sharksmentioning

confidence: 99%

Heavy Metals Concentration in Muscle Tissue of Threatened Sharks (Rhizoprionodon acutus, Sphyrna lewini, and Squallus hemipinnis) from Binuangeun, Lebak Banten, Indonesia

Suratno

Siswanta²,

Wahono³

et al. 2022

Indones. J. Chem.

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Metals accumulation in threatened sharks’ meat represents a global health issue. The objective of the current study was to measure the concentration of six metals (Li, Ti, Ni, Cd, As, and Pb) using ICP-MS in threatened sharks’ meat of Rhizoprionodon acutus, Squalus hemipinnis, and Sphyrna lewini from Binuangeun Fish Auction in Lebak, Banten, Indonesia. The results showed that the concentration of Ni, Li, Cd, and Pb was below the acceptable levels for food sources for human consumption, except for As concentration (more than 30 fold higher). This study showed high levels of Ti concentration in all threatened sharks' meat. Overall, this study shows that an accumulation of Ti in sharks' meat should be considered a risk to the health of seafood consumers.

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Section: Metals Concentration On Each Species Of Sharksmentioning

confidence: 99%

Heavy Metals Concentration in Muscle Tissue of Threatened Sharks (Rhizoprionodon acutus, Sphyrna lewini, and Squallus hemipinnis) from Binuangeun, Lebak Banten, Indonesia

Suratno

Siswanta²,

Wahono³

et al. 2022

Indones. J. Chem.

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“…Their findings imply that the size of the particles and their solubility are the key factors that dictate their cytotoxicity. A recent report by Baharlooeian, Kerdgari, and Shimada (2021) highlighted the negative effects of nano-TiO 2 in the algal species,Chaetoceros muelleri. Metzler, Erdem, and Huang (2018) demonstrated that the deposition of nano-TiO 2 on the cell surface of Raphidocelis subcapitata may block nutrient transport.…”

Section: Introductionmentioning

confidence: 99%

Algal extracellular polymeric substances (algal-EPS) for mitigating the combined toxic effects of polystyrene nanoplastics and nano-TiO₂ in Chlorella sp.

et al. 2023

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The continuous release of nanoparticles and nanoplastics into the marine environment necessitates the examination of their combined effects in marine organisms. Natural Organic Matter (NOM) can significantly influence the behavior of nanomaterials in the marine environment. The present study explores the effects of algal Extracellular Polymeric Substances (EPS) in reducing the combined toxic effects of three different polystyrene nanoplastics (PSNPs)-aminated (NH 2 -PSNPs), carboxylated (COOH-PSNPs), and plain PSNPsand P25 titanium dioxide nanoparticles (Nano-TiO 2 ) towards the marine alga, Chlorella sp. Two doses (0.25 and 2.5 mg/L) of nano-TiO 2 mixed with the PSNPs (1 mg/L) were employed. The COOH-PSNPs with 2.5 mg/L nano-TiO 2 exhibited higher growth inhibition toward algal cells. Addition of algal EPS to the mixture of NMs decreased the negative effect significantly. The mean hydrodynamic diameter increased significantly from 666 to 797 nm and 1248 to 3589 nm at concentrations 0.25 and 2.5 mg/L, respectively when the mixtures of nano-TiO 2 and COOH-PSNPs were incubated with the algal EPS. In comparison to the pristine NMs, the EPS-NMs were found to significantly reduce the superoxide and hydroxyl radical production. The results were further validated with the estimation of lipid peroxidation (LPO), esterase activity, photosynthetic efficiency, and membrane permeability in the cells. The major outcomes from this study highlight the role of algal EPS in significantly reducing the toxic impact of binary mixture of NMs in marine organisms.

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“…As a result, there are increased concerns about the environmental risk of TiO 2 NPs and a number of studies have proved the adverse effects of TiO 2 NPs on marine microalgae. 15,16 Meanwhile, enhanced EPS secretion promoted by NP exposure is considered as an important feedback response for microalgae. 17 UV light can induce significant aggregation and sedimentation of TiO 2 NPs in aqueous systems, 18 thereby influencing their exposure to aquatic organisms.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

UV-B radiation enhances the toxicity of TiO₂ nanoparticles to the marine microalga Chlorella pyrenoidosa by disrupting the protection function of extracellular polymeric substances

Zhu

Booth

Feng

et al. 2022

Environ. Sci.: Nano

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Ecotoxicological effects of TiO2 nanoparticulates and bulk Ti on microalgae Chaetoceros muelleri

Cited by 18 publications

References 82 publications

Heavy Metals Concentration in Muscle Tissue of Threatened Sharks (<i>Rhizoprionodon acutus</i>, <i>Sphyrna lewini</i>, and <i>Squallus hemipinnis</i>) from Binuangeun, Lebak Banten, Indonesia

Heavy Metals Concentration in Muscle Tissue of Threatened Sharks (<i>Rhizoprionodon acutus</i>, <i>Sphyrna lewini</i>, and <i>Squallus hemipinnis</i>) from Binuangeun, Lebak Banten, Indonesia

Algal extracellular polymeric substances (algal-EPS) for mitigating the combined toxic effects of polystyrene nanoplastics and nano-TiO₂ in Chlorella sp.

UV-B radiation enhances the toxicity of TiO₂ nanoparticles to the marine microalga Chlorella pyrenoidosa by disrupting the protection function of extracellular polymeric substances

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Ecotoxicological effects of TiO2 nanoparticulates and bulk Ti on microalgae Chaetoceros muelleri

Cited by 18 publications

References 82 publications

Heavy Metals Concentration in Muscle Tissue of Threatened Sharks (<i>Rhizoprionodon acutus</i>, <i>Sphyrna lewini</i>, and <i>Squallus hemipinnis</i>) from Binuangeun, Lebak Banten, Indonesia

Heavy Metals Concentration in Muscle Tissue of Threatened Sharks (<i>Rhizoprionodon acutus</i>, <i>Sphyrna lewini</i>, and <i>Squallus hemipinnis</i>) from Binuangeun, Lebak Banten, Indonesia

Algal extracellular polymeric substances (algal-EPS) for mitigating the combined toxic effects of polystyrene nanoplastics and nano-TiO2 in Chlorella sp.

UV-B radiation enhances the toxicity of TiO2 nanoparticles to the marine microalga Chlorella pyrenoidosa by disrupting the protection function of extracellular polymeric substances

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Algal extracellular polymeric substances (algal-EPS) for mitigating the combined toxic effects of polystyrene nanoplastics and nano-TiO₂ in Chlorella sp.

UV-B radiation enhances the toxicity of TiO₂ nanoparticles to the marine microalga Chlorella pyrenoidosa by disrupting the protection function of extracellular polymeric substances