Collaborative Research: Understanding Plasma-Liquid Interactions Through Controlled Plasma-Microdroplet Experiments and Modeling

合作研究：通过受控等离子体-微滴实验和建模了解等离子体-液体相互作用

• 批准号: 1902878
• 负责人: Mark Kushner
• 金额: $ 20万
• 依托单位: Regents of the University of Michigan - Ann Arbor
• 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: 2019-08-01 至 2024-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1902878&HistoricalAwards=false
• 关键词: Collaborative; Research; Understanding; Plasma; Liquid

This collaborative research project between University of Minnesota-Twin Cities and University of Michigan-Ann Arbor will study the interaction of a water droplet with an atmospheric pressure plasma - a reactive gas of neutral atoms and molecules, charged radicals and ions, and electrons. Chemically reactive liquids are used throughout society, from cleaning fluids in the home to customized solutions for pharmaceutical manufacturing; and now increasingly in biomedical applications. Customizing the reactivity of these liquids is a challenge, particularly when the active species have short lifetimes. Atmospheric pressure plasmas are an ideal medium to produce chemical reactivity; and plasma-liquid interactions leverage the ability to generate chemically reactive species in plasmas to produce unique chemical reactivity in the liquid. This project will also develop and support an annual one-week US Low Temperature Plasma School aimed to provide opportunities for graduate students from across the country to be immersed in low temperature plasma science and learn from leading researchers in their field.In this research project, the interaction of a single water droplet with a controlled diffuse cold atmospheric pressure plasma will be investigated with the goal of quantifying the reaction of plasma produced species with liquids. The reaction kinetics occurring near the boundary between the gas plasma and liquid, resulting in interfacial transport, becomes increasingly complex when transport and reactivity are highly coupled. This is often the case when transport includes short-lived highly reactive species as in both the plasma and liquid phases, and species transfer is transport limited. Plasma activation of aerosols and small liquid droplets interspersed in the gas plasma provides opportunities to reduce transport limits to a minimum. The experimental apparatus at University of Minnesota will uniquely enable the investigation of plasma interactions with a single droplet of known initial and final composition, passing through a well-characterized plasma. Multi-phase plasma modeling at University of Michigan will comprehensively address this complex system. The anticipated results will, in particular, elucidate droplet charging, plasma induced droplet evaporation, transport mechanisms of short-lived species and convective transport effects.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.

明尼苏达大学两国城市与密歇根大学 - 安纳尔大学之间的合作研究项目将研究水滴与大气压力等离子体的相互作用 - 中性原子和分子，带电的自由基和离子和电子的反应性气体。化学反应性液体在整个社会中都使用，从在家中的清洁液到定制的药物制造解决方案；现在在生物医学应用中越来越多。 自定义这些液体的反应性是一个挑战，尤其是当活性物种的寿命短时。大气压等离子体是产生化学反应性的理想培养基。血浆液相互作用利用了在等离子体中产生化学反应性物种的能力，从而在液体中产生独特的化学反应性。 该项目还将开发和支持一年一度的一周低温血浆学校，旨在为来自全国各地的研究生提供浸入低温血浆科学的机会，并向其领域的领先研究人员学习。在这项研究项目中，单滴与受控的弥漫性冷藏压力的相互作用将与量化物种的量化物种相互作用。 当高度耦合运输和反应性时，导致气体血浆和液体之间的边界附近发生的反应动力学会变得越来越复杂。当运输包括短寿命高反应性物种（如等离子体和液体相中，物种转移受到限制）时，通常是这种情况。气溶胶和散布在气体血浆中的小液滴的血浆激活提供了将运输极限降低至最低限度的机会。 明尼苏达大学的实验仪器将独特地与已知的初始和最终组成的单滴进行血浆相互作用，并通过特征良好的等离子体。密歇根大学的多相等离子体建模将全面解决这个复杂的系统。预期的结果尤其将阐明液滴充电，等离子体诱导的液滴蒸发，短寿命物种的运输机制和对流的运输效应。该奖项反映了NSF的法定任务，并被认为是通过基金会的知识分子和更广泛的影响来评估通过评估来获得支持的。

项目成果

The transport dynamics of tens of micrometer-sized water droplets in RF atmospheric pressure glow discharges

射频大气压辉光放电中数十微米大小的水滴的输运动力学

• DOI: 10.1088/1361-6595/acc54a
• 发表时间: 2023
• 期刊: Plasma Sources Science and Technology
• 影响因子: 3.8
• 作者: Nayak, Gaurav;Meyer, Mackenzie;Oinuma, Gaku;J Kushner, Mark;J Bruggeman, Peter
• 通讯作者: J Bruggeman, Peter

Propagation of atmospheric pressure plasmas through interconnected pores in dielectric materials

• DOI: 10.1063/5.0045706
• 发表时间: 2021-04
• 期刊: Journal of Applied Physics
• 影响因子: 3.2
• 作者: Juliusz Kruszelnicki;Runchu Ma;M. Kushner

Guided plasma jets directed onto wet surfaces: angular dependence and control

引导等离子体射流定向到潮湿表面：角度依赖性和控制

• DOI: 10.1088/1361-6463/abbf1a
• 发表时间: 2021
• 期刊: Journal of Physics D: Applied Physics
• 作者: Parsey, Guy;Lietz, Amanda M;Kushner, Mark J
• 通讯作者: Kushner, Mark J

Atmospheric pressure plasma functionalization of polystyrene

• DOI: 10.1116/6.0001850
• 发表时间: 2022-07-01
• 期刊: JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A
• 影响因子: 2.9
• 作者: Polito, Jordyn;Denning, Mark;Kushner, Mark J.
• 通讯作者: Kushner, Mark J.

Interactions between atmospheric pressure plasmas and metallic catalyst particles in packed bed reactors

• DOI: 10.1088/1361-6463/abcc92
• 发表时间: 2021-03-11
• 期刊: JOURNAL OF PHYSICS D-APPLIED PHYSICS
• 影响因子: 3.4
• 作者: Kruszelnicki, Juliusz;Engeling, Kenneth W.;Kushner, Mark J.
• 通讯作者: Kushner, Mark J.