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Evaluation of the novel nanoparticle material - CdSe quantum dots on Chlorella pyrenoidosa and Scenedesmus obliquus: Concentration-time-dependent responses.
Ecotoxicol Environ Saf. 2019 Apr 30; 171:728-736.EE

Abstract

Quantum dots (QDs), as a kind of novel nanomaterial, have the extensive applications in various fields, inevitably leading to increasing risks for the ecological environment. The mobilization of cadmium including metal smelting and subsequent machining for multifarious applications has caused the release of cadmium element into the environment. In this study, we evaluated the potential toxicity of a novel nanoparticle material CdSe QDs, using two green algae Chlorella pyrenoidosa and Scenedesmus obliquus. The impact of CdSe QDs and cadmium ions on algae and the sensitivity of the two algae on target compounds were also considered and compared. Our results showed the algal growth rates and chlorophyll content decreased with increasing exposure concentrations and durations. Moreover, the glutathione levels were decreased while the activities of superoxide dismutase increased, exhibiting their pivotal functions in defeating toxic stress. The increment of malondialdehyde levels revealed that the stresses of CdSe QDs and cadmium ions were contributed to the occurrence of oxidative damage. Our study also indicated that the impact of CdSe QDs was stronger than that of cadmium nitrate and the algal response was also species-specific. In addition, the TEM photographs of the algal ultrastructure showed the presence of surface attachment and uptake of QDs.

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Publisher Full Text (DOI)

Authors+Show Affiliations

Yan K
China Pharmaceutical University, Key Laboratory of Drug Quality Control and Pharmacovigilance (Ministry of Education), Nanjing 210009, China; Jiangsu Hengrui Medicine Co., Ltd., 7 Kunlunshan Road, Lianyungang Eco & Tech Development Zone, Lianyungang 222002, China.
Liu Y
China Pharmaceutical University, Key Laboratory of Drug Quality Control and Pharmacovigilance (Ministry of Education), Nanjing 210009, China.
Yang Q
China Pharmaceutical University, Key Laboratory of Drug Quality Control and Pharmacovigilance (Ministry of Education), Nanjing 210009, China.
Liu W
China Pharmaceutical University, Key Laboratory of Drug Quality Control and Pharmacovigilance (Ministry of Education), Nanjing 210009, China.
Guo R
China Pharmaceutical University, Key Laboratory of Drug Quality Control and Pharmacovigilance (Ministry of Education), Nanjing 210009, China.
Sui J
China Pharmaceutical University, Key Laboratory of Drug Quality Control and Pharmacovigilance (Ministry of Education), Nanjing 210009, China.
Yan Z
China Pharmaceutical University, Key Laboratory of Drug Quality Control and Pharmacovigilance (Ministry of Education), Nanjing 210009, China. Electronic address: yanzhengyujiang@163.com.
Chen J
China Pharmaceutical University, Key Laboratory of Drug Quality Control and Pharmacovigilance (Ministry of Education), Nanjing 210009, China. Electronic address: cjqalga@163.com.

MeSH

Cadmium CompoundsChlorellaChlorophyllDose-Response Relationship, DrugEnvironmental PollutantsMalondialdehydeMetallurgyQuantum DotsScenedesmusSelenium CompoundsSuperoxide Dismutase

Pub Type(s)

Journal Article

Language

eng

PubMed ID

30658309

Citation

Yan, Kun, et al. "Evaluation of the Novel Nanoparticle Material - CdSe Quantum Dots On Chlorella Pyrenoidosa and Scenedesmus Obliquus: Concentration-time-dependent Responses." Ecotoxicology and Environmental Safety, vol. 171, 2019, pp. 728-736.
Yan K, Liu Y, Yang Q, et al. Evaluation of the novel nanoparticle material - CdSe quantum dots on Chlorella pyrenoidosa and Scenedesmus obliquus: Concentration-time-dependent responses. Ecotoxicol Environ Saf. 2019;171:728-736.
Yan, K., Liu, Y., Yang, Q., Liu, W., Guo, R., Sui, J., Yan, Z., & Chen, J. (2019). Evaluation of the novel nanoparticle material - CdSe quantum dots on Chlorella pyrenoidosa and Scenedesmus obliquus: Concentration-time-dependent responses. Ecotoxicology and Environmental Safety, 171, 728-736. https://doi.org/10.1016/j.ecoenv.2019.01.018
Yan K, et al. Evaluation of the Novel Nanoparticle Material - CdSe Quantum Dots On Chlorella Pyrenoidosa and Scenedesmus Obliquus: Concentration-time-dependent Responses. Ecotoxicol Environ Saf. 2019 Apr 30;171:728-736. PubMed PMID: 30658309.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Evaluation of the novel nanoparticle material - CdSe quantum dots on Chlorella pyrenoidosa and Scenedesmus obliquus: Concentration-time-dependent responses. AU - Yan,Kun, AU - Liu,Yanhua, AU - Yang,Qiulian, AU - Liu,Weixia, AU - Guo,Ruixin, AU - Sui,Jinhong, AU - Yan,Zhengyu, AU - Chen,Jianqiu, Y1 - 2019/01/16/ PY - 2018/11/30/received PY - 2019/01/03/revised PY - 2019/01/06/accepted PY - 2019/1/19/pubmed PY - 2019/3/23/medline PY - 2019/1/19/entrez KW - Antioxidant response KW - Cell ultrastructure KW - Freshwater algae KW - Impact assessment KW - Novel nanoparticle material SP - 728 EP - 736 JF - Ecotoxicology and environmental safety JO - Ecotoxicol Environ Saf VL - 171 N2 - Quantum dots (QDs), as a kind of novel nanomaterial, have the extensive applications in various fields, inevitably leading to increasing risks for the ecological environment. The mobilization of cadmium including metal smelting and subsequent machining for multifarious applications has caused the release of cadmium element into the environment. In this study, we evaluated the potential toxicity of a novel nanoparticle material CdSe QDs, using two green algae Chlorella pyrenoidosa and Scenedesmus obliquus. The impact of CdSe QDs and cadmium ions on algae and the sensitivity of the two algae on target compounds were also considered and compared. Our results showed the algal growth rates and chlorophyll content decreased with increasing exposure concentrations and durations. Moreover, the glutathione levels were decreased while the activities of superoxide dismutase increased, exhibiting their pivotal functions in defeating toxic stress. The increment of malondialdehyde levels revealed that the stresses of CdSe QDs and cadmium ions were contributed to the occurrence of oxidative damage. Our study also indicated that the impact of CdSe QDs was stronger than that of cadmium nitrate and the algal response was also species-specific. In addition, the TEM photographs of the algal ultrastructure showed the presence of surface attachment and uptake of QDs. SN - 1090-2414 UR - https://www.unboundmedicine.com/medline/citation/30658309/Evaluation_of_the_novel_nanoparticle_material___CdSe_quantum_dots_on_Chlorella_pyrenoidosa_and_Scenedesmus_obliquus:_Concentration_time_dependent_responses_ DB - PRIME DP - Unbound Medicine ER -