Experimental assessment of the long-term ecological and evolutionary consequences of engineered nanoparticles

工程纳米颗粒长期生态和进化后果的实验评估

基本信息

  • 批准号:
    1833988
  • 负责人:
  • 金额:
    $ 32.25万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Standard Grant
  • 财政年份:
    2019
  • 资助国家:
    美国
  • 起止时间:
    2019-01-01 至 2022-12-31
  • 项目状态:
    已结题

项目摘要

Nanomaterials are materials with at least one critical dimension below 100 nm. Engineered nanomaterials, which constitute the building blocks of modern nanotechnology, are those engineered and manufactured by humans. Many engineered nanomaterials, including nanoparticles, nanotubes, and nanowires, display novel physical and chemical properties that are desirable for applications within the medical, industrial, commercial, and environmental sectors. As a result, a large number of commercial products using nanotechnology have been on the market, with thousands of tons of nanomaterials being produced each year. However, with the rapid development of nanotechnology, there is a greater risk for people and environment to be exposed to more nanotechnology-based products. Indeed, nanomaterials are known to enter the environment through both intentional and unintentional releases. Thus, a comprehensive understanding of the environmental impacts of nanomaterials is needed. However, much of the research on the environmental impacts of nanomaterials has focused on the responses of individual organisms or species after short-term exposure (from a few hours to a few days) to nanomaterials. There is little knowledge on how ecological communities, in which organisms interact with individuals of the same and other species, respond to engineered nanomaterials on longer timescales. It is imperative to fill this knowledge gap so that we can avoid potentially serious environmental consequences. In recognition of this pressing issue, this project, led by Lin Jiang and Yongsheng Chen of Georgia Institute of Technology, will investigate the long-term ecological and evolutionary consequences of cerium oxide (CeO2) nanoparticles, a type of metal oxide nanoparticle with various industrial applications. The findings of this project will contribute to a more complete understanding of the effects of engineered nanomaterials on the natural ecosystem. The project will also provide high-quality research training for graduate and undergraduate students, including those from underrepresented groups. Building on their previous work on the molecular, cellular, and species-level responses to engineered nanoparticles, the research team will use freshwater bacteria and protozoans as model organisms to evaluate the novel hypothesis that nanoparticles influence the strength of interactions between species, often more strongly than their non-nanoparticle counterparts, with ensuing consequences for population dynamics, community assembly, and biodiversity evolution. This project will fill a significant gap in our knowledge by applying ecological principles to understanding the effects of nanoparticles on species interactions and associated consequences. The proposed research will advance knowledge in four specific areas. First, it will address potential dynamical consequences of nanoparticles by studying their impacts on predator-prey interactions and population dynamics. Second, it will explore the likelihood that nanoparticles alter outcomes of competition by changing species relative competitive ability. Third, it will test the idea that nanoparticles may influence community assembly through modifying interactions between earlier and later colonizing species. Fourth, it will extend nanotoxicity investigations to the evolutionary timescale by investigating nanoparticle impacts on adaptive radiation. Consequently, the proposed research marries nanotoxicology with population biology and community ecology, contributing to the further development of nanotoxicology as an emerging discipline.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.
纳米材料是至少一个临界尺寸低于100 nm的材料。工程纳米材料是由人类设计和制造的,构成了现代纳米技术的基石。许多工程纳米材料,包括纳米颗粒,纳米管和纳米线,显示出新颖的物理和化学性质,这些性质对于医疗,工业,商业和环境领域的应用是理想的。因此,大量使用纳米技术的商业产品已进入市场,每年生产数千吨纳米材料。然而,随着纳米技术的快速发展,人们和环境暴露于更多基于纳米技术的产品的风险更大。事实上,已知纳米材料通过有意和无意释放进入环境。因此,需要全面了解纳米材料的环境影响。然而,许多关于纳米材料环境影响的研究都集中在单个生物体或物种在短期(几小时到几天)接触纳米材料后的反应上。在生态群落中,生物体与同一物种和其他物种的个体相互作用,人们对生态群落如何在较长的时间尺度上对工程纳米材料作出反应知之甚少。我们必须填补这一知识空白,以避免潜在的严重环境后果。认识到这一紧迫问题,该项目由格鲁吉亚理工学院的Lin Jiang和Yongsheng Chen领导,将研究氧化铈(CeO 2)纳米颗粒的长期生态和进化后果,这是一种具有各种工业应用的金属氧化物纳米颗粒。该项目的研究结果将有助于更全面地了解工程纳米材料对自然生态系统的影响。该项目还将为研究生和本科生提供高质量的研究培训,包括来自代表性不足群体的学生。基于他们以前对工程纳米颗粒的分子,细胞和物种水平反应的工作,研究小组将使用淡水细菌和原生动物作为模型生物来评估新的假设,即纳米颗粒影响物种之间相互作用的强度,通常比非纳米颗粒更强,随之而来的后果是种群动态,社区组装和生物多样性进化。该项目将填补我们知识的一个重大空白,通过应用生态学原理来理解纳米粒子对物种相互作用和相关后果的影响。拟议的研究将促进四个具体领域的知识。首先,它将通过研究纳米颗粒对捕食者-猎物相互作用和种群动态的影响来解决纳米颗粒的潜在动力学后果。其次,它将探讨纳米粒子通过改变物种相对竞争能力来改变竞争结果的可能性。第三,它将测试纳米颗粒可能通过改变早期和晚期殖民物种之间的相互作用来影响社区组装的想法。第四,它将通过调查纳米粒子对适应性辐射的影响,将纳米毒性调查扩展到进化时间尺度。因此,拟议的研究与人口生物学和社区生态学的纳米毒理学的婚姻,有助于进一步发展纳米毒理学作为一个新兴的disciplines.This奖项反映了NSF的法定使命,并已被认为是值得通过使用基金会的智力价值和更广泛的影响审查标准进行评估的支持。

项目成果

期刊论文数量(18)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Different assembly mechanisms of leaf epiphytic and endophytic bacterial communities underlie their higher diversity in more diverse forests
  • DOI:
    10.1111/1365-2745.14084
  • 发表时间:
    2023-03
  • 期刊:
  • 影响因子:
    5.5
  • 作者:
    Xian Yang;Pandeng Wang;B. Xiao;Qianna Xu;Q. Guo;Shaopeng Li;Lulu Guo;M. Deng;Jianbo Lu;Lingli Liu;K. Ma;B. Schmid;Lin Jiang
  • 通讯作者:
    Xian Yang;Pandeng Wang;B. Xiao;Qianna Xu;Q. Guo;Shaopeng Li;Lulu Guo;M. Deng;Jianbo Lu;Lingli Liu;K. Ma;B. Schmid;Lin Jiang
Prevention of algaculture contamination using pesticides for biofuel production
使用农药生产生物燃料来预防藻类养殖污染
  • DOI:
    10.1016/j.algal.2020.101975
  • 发表时间:
    2020
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Van Ginkel, Steven W.;El-Sayed, Waleed M.M.;Johnston, Rachel;Narode, Asmita;Lee, Hwa Jong;Bhargava, Aditya;Snell, Terry;Chen, Yongsheng
  • 通讯作者:
    Chen, Yongsheng
Experimental demonstration of the importance of keystone communities for maintaining metacommunity biodiversity and ecosystem functioning
实验证明关键群落对于维持元群落生物多样性和生态系统功能的重要性
  • DOI:
    10.1007/s00442-020-04693-x
  • 发表时间:
    2020
  • 期刊:
  • 影响因子:
    2.7
  • 作者:
    Yang, Xian;Tan, Jiaqi;Sun, Kevin Harry;Jiang, Lin
  • 通讯作者:
    Jiang, Lin
Warming alters plant phylogenetic and functional community structure
  • DOI:
    10.1111/1365-2745.13448
  • 发表时间:
    2020-07
  • 期刊:
  • 影响因子:
    5.5
  • 作者:
    Juntao Zhu;Yang-jian Zhang;Xian Yang;Ning Chen;Shaopeng Li;Pandeng Wang;Lin Jiang
  • 通讯作者:
    Juntao Zhu;Yang-jian Zhang;Xian Yang;Ning Chen;Shaopeng Li;Pandeng Wang;Lin Jiang
Influence of the Exclusion-Enrichment Effect on Ion Transport in Two-Dimensional Molybdenum Disulfide Membranes
排阻富集效应对二维二硫化钼膜中离子传输的影响
  • DOI:
    10.1021/acsami.1c03832
  • 发表时间:
    2021
  • 期刊:
  • 影响因子:
    9.5
  • 作者:
    Tong, Xin;Liu, Su;Zhao, Yangying;Chen, Yongsheng;Crittenden, John
  • 通讯作者:
    Crittenden, John
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Lin Jiang其他文献

Dynamics And Energetics Associated With Ligand Photodissociation From Co Bound Chloroperoxidase
与钴结合氯过氧化物酶的配体光解相关的动力学和能量学
  • DOI:
  • 发表时间:
    2009
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Simona Horsa;Lin Jiang;Xiaotang Wang;J. Miksovska
  • 通讯作者:
    J. Miksovska
Experimental study of carriage fire in a tunnel: Evolution of flame geometry characteristics under relative strong crosswinds
隧道运输火灾实验研究:较强侧风下火焰几何特征的演变
  • DOI:
    10.1016/j.proci.2020.07.084
  • 发表时间:
    2021
  • 期刊:
  • 影响因子:
    3.4
  • 作者:
    Fei Tang;Qing He;Xiepeng Sun;Lin Jiang;Peng Hu;Longhua hu
  • 通讯作者:
    Longhua hu
A new source‐filter model audio bandwidth extension using high frequency perception feature for IoT communications
使用高频感知功能进行物联网通信的新源滤波器模型音频带宽扩展
span style=font-family:#39;Times New Roman#39;,#39;serif#39;;color:black;font-size:10.5pt;Epigenetic code and potential epigenetic-based therapies against chronic diseases in developmental origins/span
表观遗传密码和针对发育起源的慢性疾病的潜在表观遗传疗法
  • DOI:
  • 发表时间:
    2014
  • 期刊:
  • 影响因子:
    7.4
  • 作者:
    Qinqin Gao;Jiaqi Tang;Jie Chen;Lin Jiang;Xiaolin Zhu;Zhice Xu
  • 通讯作者:
    Zhice Xu
The Effectiveness of the Continuation Task on Second Language Learning of English Articles.
英语文章第二语言学习延续任务的有效性。
  • DOI:
    10.5539/elt.v8n11p79
  • 发表时间:
    2015
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Lin Jiang
  • 通讯作者:
    Lin Jiang

Lin Jiang的其他文献

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{{ truncateString('Lin Jiang', 18)}}的其他基金

The Role of Phylogenetic Relatedness and Diversity on Community Assembly and Ecosystem Functioning: Experimental Tests Using Laboratory Protist Microcosms
系统发育相关性和多样性对群落组装和生态系统功能的作用:使用实验室原生生物微观世界进行的实验测试
  • 批准号:
    1856318
  • 财政年份:
    2019
  • 资助金额:
    $ 32.25万
  • 项目类别:
    Standard Grant
Combined Heat and Photo Voltaics (CHPV)
热电联产和光伏发电 (CHPV)
  • 批准号:
    EP/M507192/1
  • 财政年份:
    2014
  • 资助金额:
    $ 32.25万
  • 项目类别:
    Research Grant
Dimensions US-China: Collaborative Research: Phylogenetic, Functional, and Genetic Diversity and Ecosystem Functions in a Fragmented Landscape
维度 中美:合作研究:碎片化景观中的系统发育、功能和遗传多样性以及生态系统功能
  • 批准号:
    1342754
  • 财政年份:
    2014
  • 资助金额:
    $ 32.25万
  • 项目类别:
    Standard Grant
Collaborative Research: Relative Controls of Niche vs. Neutral Microbial Community Assembly Processes Over Ecosystem Function Post-Disturbance
合作研究:生态位与中性微生物群落组装过程对扰乱后生态系统功能的相对控制
  • 批准号:
    1257858
  • 财政年份:
    2013
  • 资助金额:
    $ 32.25万
  • 项目类别:
    Standard Grant
Nonlinear Adaptive Control of Doubly-fed Induction Generator for Variable Speed Wind Turbine
变速风力机双馈感应发电机非线性自适应控制
  • 批准号:
    EP/J014249/1
  • 财政年份:
    2012
  • 资助金额:
    $ 32.25万
  • 项目类别:
    Research Grant
The role of phylogenetic diversity on community assembly and ecosystem functioning: experimental tests using laboratory microcosms
系统发育多样性对群落组装和生态系统功能的作用:使用实验室微观世界的实验测试
  • 批准号:
    1120281
  • 财政年份:
    2011
  • 资助金额:
    $ 32.25万
  • 项目类别:
    Standard Grant
Competition for Biotic Resources and Coexistence in Variable Environments
生物资源的竞争与多变环境中的共存
  • 批准号:
    0640416
  • 财政年份:
    2007
  • 资助金额:
    $ 32.25万
  • 项目类别:
    Standard Grant

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