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A Standard and Reliable Method to Fabricate Two-Dimensional Nanoelectronics
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纳米和纳米-Nd.

Yongli Xu1,2,3, Liyao Zhu1,2,3,4, Raja Vukanti5

  • 1College of Mining Engineering, North China University of Science and Technology, Tangshan, 063210, Hebei, China.

Environmental science and pollution research international
|June 3, 2023
PubMed
概括
此摘要是机器生成的。

纳米粒子氧化物 (纳米-Nd2O3) 没有影响土壤细菌多样性或组成. 然而,它以剂量取决的方式对土壤微生物功能,特别是碳和循环产生了负面影响.

关键词:
阿尔法多样性的多样性细菌社区的细菌社区酶活性的酶活动.纳米-Nd2O3O3 的使用.纳米颗粒 纳米颗粒土壤 土壤土壤.

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科学领域:

  • 环境科学 环境科学
  • 土壤科学 土壤科学
  • 微生物学 微生物学

背景情况:

  • 纳米粒子氧化物 (纳米-Nd2O3) 在农业,工业和医学中广泛使用.
  • 纳米-Nd2O3对环境的影响,特别是对土壤生态系统的影响,需要进行彻底评估.
  • 以前的研究还没有完全评估纳米-Nd2O3对土壤细菌群落多样性,组成和功能的影响.

研究的目的:

  • 研究不同纳米-Nd2O3度对土壤细菌群体α多样性,组成和功能的影响.
  • 确定纳米-Nd2O3对与营养循环相关的土壤微生物酶活动的剂量依赖影响.
  • 为了确定对纳米-Nd2O3暴露敏感的特定土壤细菌种群.

主要方法:

  • 用纳米-Nd2O3在0,10,50和100毫克/公斤-1的土壤度中修改了土壤中等宇宙,并在60天内化.
  • 在第7天和第60天分析了土壤细菌社区的α多样性和组成.
  • 测量了参与营养循环的六种关键土壤酶的活动,以评估社区功能.

主要成果:

  • 纳米-Nd2O3并没有显著改变土壤细菌群体的α多样性或组成.
  • 社区功能受到纳米-Nd2O3的负面影响,以剂量依赖的方式.
  • β-1,4-葡萄糖酶 (碳循环) 和β-1,4-n-乙葡萄糖胺酶 (循环) 的活性受到纳米-Nd2O3暴露的显著影响.

结论:

  • 虽然纳米-Nd2O3似乎不会破坏土壤细菌群体的整体结构,但它可能会损害微生物的基本功能.
  • 观察到的功能变化与罕见和敏感的细菌种群的变化有关,包括Isosphaerales和Isosphaeraceae,Ktedonobacteraceae和Streptomyces属的细菌种群.
  • 结果为纳米-Nd2O3在各种技术领域的安全应用提供了关键数据,强调需要考虑其对土壤微生物过程的影响.