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Shape-Dependent Transformation and Translocation of Ceria Nanoparticles in Cucumber Plants
Zhang P(张鹏); Xie CJ(谢昌建); Ma YH(马宇辉); He X(何潇); Zhang ZY(张智勇); Ding YY(丁雅韵); Zheng LR(郑黎荣); Zhang J(张静); Zhang, P; Xie, CJ; Ma, YH; He, X; Zhang, ZY; Ding, YY; Zheng, LR; Zhang, J
2017
Source PublicationENVIRONMENTAL SCIENCE & TECHNOLOGY LETTERS
ISSN2328-8930
Volume4Issue:9Pages:380-385
SubtypeArticle
AbstractThe association of physicochemical properties of CeO2-NPs (CeO2 nanoparticles) per se with their transformation is not well understood. This study for the first time compared the translocation and transformation of octahedral, cubic, rod, and irregularly shaped CeO2-NPs in hydroponic cucumber plants. Cerium contents in roots were close between different treatments, while the largest amount (153 mg/kg) of Ce accumulated in rod-like CeO2-NP treatments. Transmission electron microscopy and X-ray absorption near edge spectroscopy show that rod CeO2-NPs transformed faster and more than other CeO2-NPs, with nearly 40% of Ce in the form of Ce(III) species in roots (CePO4) and shoots (Ce carboxylates). Rod-like CeO2-NPs transformed to a degree greater than those of the other CeO2-NPs in solution simulating the plant exudates, indicating that rod-like CeO2-NPs have the highest chemical reactivity. These results suggest that the intrinsically different chemical reactivity of differently shaped CeO2-NPs resulted in their different transformation and translocation capacities in plants. This study provides new insight into plant-NP interaction, highlighting the significance of the shape of nanoparticles in assessing their environmental behavior and impacts. We suggest that the influence of shape should be also considered for other nanomaterials and systems in developing an accurate understanding of the nano-bio interactions.
DOI10.1021/acs.estlett.7b00359
WOS KeywordTERRESTRIAL FOOD-CHAIN ; TROPHIC TRANSFER ; ENGINEERED NANOMATERIALS ; CEO2 NANOPARTICLES ; TOXICITY ; GROWTH ; OXIDE ; SIZE
Indexed BySCI ; EI ; SCOPUS
Language英语
WOS Research AreaEngineering ; Environmental Sciences & Ecology
WOS SubjectEngineering, Environmental ; Environmental Sciences
WOS IDWOS:000410876500005
EI Accession Number20174504363182
EI KeywordsCarboxylation - High resolution transmission electron microscopy - Nanoparticles - Transmission electron microscopy - X ray absorption
EI Classification Number711 Electromagnetic Waves - 741.3 Optical Devices and Systems - 761 Nanotechnology - 802.2 Chemical Reactions - 933 Solid State Physics
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Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/284989
Collection多学科研究中心
Affiliation中国科学院高能物理研究所
First Author AffilicationInstitute of High Energy
Recommended Citation
GB/T 7714
Zhang P,Xie CJ,Ma YH,et al. Shape-Dependent Transformation and Translocation of Ceria Nanoparticles in Cucumber Plants[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY LETTERS,2017,4(9):380-385.
APA 张鹏.,谢昌建.,马宇辉.,何潇.,张智勇.,...&Zhang, J.(2017).Shape-Dependent Transformation and Translocation of Ceria Nanoparticles in Cucumber Plants.ENVIRONMENTAL SCIENCE & TECHNOLOGY LETTERS,4(9),380-385.
MLA 张鹏,et al."Shape-Dependent Transformation and Translocation of Ceria Nanoparticles in Cucumber Plants".ENVIRONMENTAL SCIENCE & TECHNOLOGY LETTERS 4.9(2017):380-385.
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