Explore the Nano World
Wen's Research Group
Wen Zhang, Ph.D., P.E., BCEE
Principal Investigator
Professor
Phone: (973) 596-5520
Fax: (973) 596-5790
Email: wen.zhang@njit.edu
Office Location: Colton Hall 211
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主要作者介绍
Dr. Shan Xue, a graduate of the year 2023 from the Department of Civil and Environmental Engineering under the guidance of Professor Wen Zhang at the New Jersey Institute of Technology. Presently, she continues to contribute to the research endeavors of Professor Zhang's team as a postdoctoral researcher. Her primary focus areas encompass a diverse range of investigations, including: (1) Exploring the colloidal behavior and properties of nanobubble in water and other liquid mediums; (2) Pioneering the development of nanobubble-based irrigation technology aimed at optimizing nutrient dispersion, fostering enhanced plant growth, and advancing eco-friendly and precision farming practices; and (3) Employing nanobubble technology to cleanse oil-contaminated soils.
薛珊 (Shan Xue) 博士2023年毕业于新泽西理工学院(New Jersey Institute of Technology)土木与环境工程系张文教授课题组。目前她继续在张文教授课题组从事博士后研究，具体包括 (1) 纳米气泡在水和其他液体介质中的胶体行为和特性；（2）纳米气泡在农业中的应用，研究纳米气泡促进植物的生长机理, 推动生态友好和精准农业实践；以及（3）纳米气泡在土壤修复中的应用。联系邮箱：sx59@njit.edu
Shan Xue's STOTEN paper
文章摘要
新泽西理工大学土木与环境工程系张文教授课题组近期于Science of The Total Environment 发表研究论文，报道了纳米气泡对番茄早期生长和土壤性质的影响。
纳米气泡已经被证明对于植物生长和种子发芽具有积极的影响，同时还有潜在的节水和减肥效应。为了深入解析NBs对植物生长的促进机制，本研究对自来水中的纳米气泡进行了特性分析，并研究了其对番茄早期生长、土壤化学特性、酶活性以及植物根系的电化学特性的影响。研究发现，氧气纳米气泡能够显著提高种子的发芽率达10%，并且可促使植物生长率提高30%至50%（例如茎的高度和直径等），而氮气纳米气泡仅对植物高度有7%至34%的显著促进作用。此外，与对照组（自来水）相比，使用氧气纳米气泡水浇灌可以使番茄叶片中过氧化物酶的活性提高500%至1000%，这可能会增加过氧化物酶基因的表达，从而进一步促进细胞增殖和植物生长。此外，电阻抗谱的研究结果显示，氧气纳米气泡可以降低界面阻抗，这是由于氧气纳米气泡促进了根部的生长从而增加了根部活性表面积和电导率。这些发现为我们深入了解纳米气泡如何影响植物生长机制提供了重要的科学依据，也为未来利用纳米气泡来改善农作物生产和土壤健康提供了新的思路。
揭示纳米气泡在水中的潜力：对番茄早期生长和土壤性质的影响
第一作者：薛珊
通讯作者：张文
通讯单位：新泽西理工学院
论文link： https://doi.org/10.1016/j.scitotenv.2023.166499
Abstract
Nanobubbles (NBs) in water have been proven to improve plant growth and seed germination, potentially reducing both water and fertilizer consumption. To unravel the promotion mechanism of NBs on plant growth, this study investigated the characterization of NBs in tap water and their impacts on tomato's early growth, soil chemical properties, enzymatic activity and electrochemical properties of plant roots. Oxygen NBs (ONB) were found to increase the seed germination by 10 % and plant growth by 30 %–50 % (e.g., stem height and diameter), whereas nitrogen NB (NNB) only had a significant promotion (7 %–34 %) on plant height. Additionally, compared to control group, irrigation with ONB increased the peroxidase activities by 500 %–1000 % in tomato leaves, which may increase the expression of genes for peroxidase and promote cell proliferation and plant growth. Moreover, electrical impedance spectroscopy (EIS) revealed that the ONBs could reduce the interfacial impedance due to the increased active surface area and electrical conductivity of root.
Unveiling the potential of nanobubbles in water: Impacts on tomato's early growth and soil properties