Chu Chenlu, Lu Chenhao, Yuan Jian, Xing Changrui
Key Laboratory of Grains and Oils Quality Control and Processing College of Food Science and Engineering Collaborative Innovation Center for Modern Grain Circulation and Safety Nanjing University of Finance and Economics Nanjing China.
Food Sci Nutr. 2020 Jun 9;8(7):3673-3681. doi: 10.1002/fsn3.1651. eCollection 2020 Jul.
The fate of nanoparticles in the ecological chain of agriculture has been concerned as their potential pollution and biological effect to humans with rapid development and massive emission of nanomaterials. Here, we found that two rice cultivars () have different heavy metal accumulation results in the roots and shoots after 15 days growth. Two rice cultivars (), grown in soil containing magnetite (FeO@NH) nanoparticles and heavy metal simultaneous, showed less Pb uptake in the roots and shoots, compared with that without FeO@NH added. The shape and magnetic properties of FeO@NH have no obvious change; however, the transmission electron microscope (TEM) results showed the shell of FeO@NH could be broken in the process of interaction with soil. These results suggested that magnetite nanoparticles, such as FeO@NH, could potentially be used as the recyclable heavy metal fixation materials for alleviating heavy metal poisoning to plant.
随着纳米材料的快速发展和大量排放，其在农业生态链中的命运因其对人类的潜在污染和生物效应而受到关注。在此，我们发现两个水稻品种在生长15天后，根和地上部分的重金属积累结果不同。在同时含有磁铁矿（FeO@NH）纳米颗粒和重金属的土壤中生长的两个水稻品种，与未添加FeO@NH的情况相比，根和地上部分对铅的吸收较少。FeO@NH的形状和磁性没有明显变化；然而，透射电子显微镜（TEM）结果表明，FeO@NH的外壳在与土壤相互作用的过程中可能会被破坏。这些结果表明，磁铁矿纳米颗粒，如FeO@NH，有可能作为可回收的重金属固定材料，用于减轻植物的重金属中毒。
