Microalgal ecotoxicity of nanoparticles: An updated review
- Authors
- Nguyen M.K.; Moon J.-Y.; Lee Y.-C.
- Issue Date
- Sep-2020
- Publisher
- Academic Press
- Keywords
- Ecotoxicology; Growth inhibition; Mechanism; Microalgae; Nanoparticles; Toxic effect
- Citation
- Ecotoxicology and Environmental Safety, v.201
- Journal Title
- Ecotoxicology and Environmental Safety
- Volume
- 201
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/68777
- DOI
- 10.1016/j.ecoenv.2020.110781
- ISSN
- 0147-6513
- Abstract
- Nowadays, nanotechnology and its related industries are becoming a rapidly explosive industry that offers many benefits to human life. However, along with the increased production and use of nanoparticles (NPs), their presence in the environment creates a high risk of increasing toxic effects on aquatic organisms. Therefore, a large number of studies focusing on the toxicity of these NPs to the aquatic organisms are carried out which used algal species as a common biological model. In this review, the influences of the physio-chemical properties of NPs and the response mechanisms of the algae on the toxicity of the NPs were discussed focusing on the “assay” studies. Besides, the specific algal toxicities of each type of NPs along with the NP-induced changes in algal cells of these NPs are also assessed. Almost all commonly-used NPs exhibit algal toxicity. Although the algae have similarities in the symptoms under NP exposure, the sensitivity and variability of each algae species to the inherent properties of each NPs are quite different. They depend strongly on the concentration, size, characteristics of NPs, and biochemical nature of algae. Through the assessment, the review identifies several gaps that need to be further studied to make an explicit understanding. The findings in the majority of studies are mostly in laboratory conditions and there are still uncertainties and contradictory/inconsistent results about the behavioral effects of NPs under field conditions. Besides, there remains unsureness about NP-uptake pathways of microalgae. Finally, the toxicity mechanisms of NPs need to be thoughtfully understood which is essential in risk assessment. © 2020 Elsevier Inc.
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