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水溶性磁性Fe_3O_4纳米粒子对小麦生长影响的研究
引用本文:陈凌云,罗阳,杨胜韬,左芳.水溶性磁性Fe_3O_4纳米粒子对小麦生长影响的研究[J].西南民族大学学报(自然科学版),2018,44(1):31-39.
作者姓名:陈凌云  罗阳  杨胜韬  左芳
作者单位:西南民族大学 化学与环境保护工程学院,西南民族大学 化学与环境保护工程学院,西南民族大学 化学与环境保护工程学院,西南民族大学 化学与环境保护工程学院
基金项目:国家自然科学基金面上项目(No. 21777132)和西南民族大学研究生创新型科研项目(No. CX2016SZ028)。
摘    要:水溶性磁性Fe_3O_4纳米颗粒由于其良好的生物相容性、超顺磁性等特征,在生物领域常被用来作为磁性载体材料,其广泛的生产和应用增加了它们在环境中释放的可能性,需对其环境生物安全性进行评价.首先合成了水溶性磁性Fe_3O_4纳米纳米粒子,并用透射电子显微镜和马尔文粒度分析仪对其进行形貌分析和表征.然后在不同的浓度下(0、0.72、1.44、3.6 mg/mL)研究了水溶性磁性Fe_3O_4纳米粒子对小麦生长的影响,结果显示随着浓度的增加,磁性Fe_3O_4纳米纳米粒子对小麦生长的抑制越明显,造成生长抑制和根结构损伤.结果证明了水溶性磁性Fe_3O_4纳米颗粒对小麦植物存在一定的生物毒性,其环境排放应该严格限制.

关 键 词:Fe3O4纳米粒子  水溶性  小麦  毒性
收稿时间:2017/12/4 0:00:00
修稿时间:2017/12/21 0:00:00

Influence of water soluble magnetic Fe3O4 nanoparticles on the growth of wheat seedlings
CHEN Lingyun,LUO Yang,YANG Sheng-Tao and ZUO Fang.Influence of water soluble magnetic Fe3O4 nanoparticles on the growth of wheat seedlings[J].Journal of Southwest University for Nationalities(Natural Science Edition),2018,44(1):31-39.
Authors:CHEN Lingyun  LUO Yang  YANG Sheng-Tao and ZUO Fang
Affiliation:College of Chemistry and Environment Protection,Southwest University for Nationalities,College of Chemistry and Environment Protection,Southwest University for Nationalities,College of Chemistry and Environment Protection,Southwest University for Nationalities,College of Chemistry and Environment Protection,Southwest University for Nationalities
Abstract:Water soluble magnetic Fe3O4 nanoparticles are used as a magnetic carrier material in the biological field owing to its good biological compatibility, super paramagnetic and so on. The wide production and applications of Fe3O4 nanoparticles increase their potential release in the environment, so the environmental biosafety of Fe3O4 nanoparticles should be evaluated. In this paper, we synthesized the water soluble magnetic Fe3O4 nanoparticles, and characterized them with transmission electron microscopy and Malvern spray analyzer. Then we studied the effect of different concentrations (0, 0.72, 1.44 and 3.6 mg/mL) of water soluble magnetic Fe3O4 nanoparticles on the growth of wheat. The results showed that the toxicity of the magnetic Fe3O4 nanoparticles to the wheat growth was more obvious at high concentrations, showing inhibited seedling growth and structural changes of root. Our results illustrated the water soluble magnetic Fe3O4 nanoparticles have were toxic to wheats and the discharge of Fe3O4 nanoparticles into the environment should be strictly regulated.
Keywords:Fe3O4 nanoparticles  water dispersible  wheat  toxicity
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