Uptake, translocation, and accumulation of manufactured iron oxide nanoparticles by pumpkin plants.
Rapid development and application of nanomaterials and nanotechnology make assessment of their potential health and environmental impacts on humans, non-human biota, and ecosystems imperative. Here we show that pumpkin plants (Cucurbita maxima), grown in an aqueous medium containing magnetite (Fe3O4) nanoparticles, can absorb, translocate, and accumulate the particles in the plant tissues. These results suggest that plants, as an important component of the environmental and ecological systems, need to be included when evaluating the overall fate, transport and exposure pathways of nanoparticles in the environment.
University of Delaware, Department of Physics and Astronomy, Newark, Delaware, USA.
Hao
H
Zhu
Jie
J
Han
John Q
JQ
Xiao
Yan
Y
Jin
D000042:Absorption; D044822:Biodiversity; D028464:Cucurbita / Q000187:drug effects* / Q000502:physiology; D017753:Ecosystem; D004784:Environmental Monitoring / Q000379:methods*; D052203:Ferrosoferric Oxide / Q000032:analysis / Q000633:toxicity*; D053758:Nanoparticles / Q000032:analysis / Q000633:toxicity*; D018517:Plant Roots / Q000187:drug effects* / Q000502:physiology; D018570:Risk Assessment; D012542:Scattering, Radiation; D012989:Soil Pollutants / Q000032:analysis / Q000633:toxicity*; D014874:Water Pollutants, Chemical / Q000032:analysis / Q000633:toxicity*
D012989:Soil Pollutants; D014874:Water Pollutants, Chemical; D052203:Ferrosoferric Oxide