CAS OpenIR  > 中科院上海应用物理研究所2011-2019年
Transformation of ceria nanoparticles in cucumber plants is influenced by phosphate
Rui, YK; Zhang, P; Zhang, YB; Ma, YH; He, X; Gui, X; Li, YY; Zhang, J; Zheng, LR; Chu, SQ; Guo, Z; Chai, ZF; Zhao, YL; Zhang, ZY
2015
Source PublicationENVIRONMENTAL POLLUTION
Volume198Pages:8—14
Subtype期刊文献
AbstractTransformation is a critical factor that affects the fate and toxicity of manufactured nanoparticles (NPs) in the environment and living organisms. This paper aims to investigate the effect of phosphate on the transformation of CeO2 NPs in hydroponic plants. Cucumber seedlings were treated with 2000 mg/L CeO2 NPs in nutrient solutions with or without adding phosphate (+P or -P) for 3 weeks. Large quantities of needle-like CePO4 was found outside the epidermis in the +P group. While in the -P group, CePO4 only existed in the intercellular spaces and vacuole of root cells. X-ray absorption near edge spectroscopy (XANES) indicates that content and percentage of Ce-carboxylates in the shoots of -P group (418 mg/kg, 67.5%) were much higher than those in the +P group (30.1 mg/kg, 21%). The results suggest that phosphate might influence the transformation process of CeO2 NPs in plants and subsequently their ultimate fate in the ecosystem. (C) 2014 Elsevier Ltd. All rights reserved.
KeywordEarth-elements Rees Engineered Nanomaterials Oxide Nanoparticles Zno Nanoparticles Cell-wall Accumulation Toxicity Ceo2 Biotransformation Fractionation
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/24611
Collection中科院上海应用物理研究所2011-2019年
Recommended Citation
GB/T 7714
Rui, YK,Zhang, P,Zhang, YB,et al. Transformation of ceria nanoparticles in cucumber plants is influenced by phosphate[J]. ENVIRONMENTAL POLLUTION,2015,198:8—14.
APA Rui, YK.,Zhang, P.,Zhang, YB.,Ma, YH.,He, X.,...&Zhang, ZY.(2015).Transformation of ceria nanoparticles in cucumber plants is influenced by phosphate.ENVIRONMENTAL POLLUTION,198,8—14.
MLA Rui, YK,et al."Transformation of ceria nanoparticles in cucumber plants is influenced by phosphate".ENVIRONMENTAL POLLUTION 198(2015):8—14.
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