SusChEM: Collaborative Research: Identification of the critical length scales and chemistries responsible for the anti-fouling properties of heterogeneous surfaces

SusChEM：合作研究：确定负责异质表面防污性能的临界长度尺度和化学成分

• 批准号: 1508049
• 负责人: Ayse Asatekin
• 金额: $ 10.2万
• 依托单位: Tufts University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2015
• 资助国家: 美国
• 起止时间: 2015-11-15 至 2019-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1508049&HistoricalAwards=false
• 关键词: SusChEM; Collaborative; Research; Identification; critical

In this project funded by the Environmental Chemical Sciences Program in the Chemistry Division at the National Science Foundation, Professors Meagan S. Mauter of Carnegie Mellon University and Ayse Asatekin of Tufts University characterize the fundamental mechanisms of foulant adhesion to naturally occurring surfaces. The ability to prevent soiling of a surface (prevent fouling) has many practical applications in both biomedical and marine applications. This research is leading to a new class of fouling resistant surfaces that enable energy savings. The ability to use anti-fouling membranes (i.e., filters that do not become clogged) to remove salt from sea water (desalinization) is also a potential benefit of this research. Two graduate and several undergraduate students involved in this research gain interdisciplinary knowledge and skills, and disseminate their work through publications and presentations. This work involves polymer synthesis, colloidal force and deposition experiments, and modeling to evaluate the relative importance of domain size, domain hydrophobicity/hydrophilicity contrast, and domain chemistry in determining foulant adsorption. A library of copolymer films with surface heterogeneity on the length scale of 1 to 10 nm are synthesized and characterized. The material properties are used to model the attachment efficiency of colloids to these heterogeneous surfaces using three models of increasing complexity. These models are validated using colloidal force microscopy and mass-based deposition measurements using a quartz crystal microbalance with dissipation monitoring. Finally, this project explores the role of nanopatterning on colloidal release as a function of shear velocity. Both Professors Mauter and Asatekin are active advocates of broadening the participation of women in science and engineering fields, and incorporate this research into their classes which includes topics in environmental policy, polymer science, and separations.

在这个由美国国家科学基金会化学部环境化学科学项目资助的项目中，卡内基梅隆大学的 Meagan S. Mauter 教授和塔夫茨大学的 Ayse Asatekin 教授描述了污染物粘附到自然表面的基本机制。 防止表面污染（防止结垢）的能力在生物医学和海洋应用中具有许多实际应用。 这项研究正在开发出一种新型的防污表面，可以实现节能。 使用防污膜（即不会堵塞的过滤器）从海水中去除盐（脱盐）的能力也是这项研究的潜在好处。 参与这项研究的两名研究生和几名本科生获得了跨学科知识和技能，并通过出版物和演示传播他们的工作。 这项工作涉及聚合物合成、胶体力和沉积实验以及建模，以评估域尺寸、域疏水性/亲水性对比和域化学在确定污染物吸附中的相对重要性。 合成并表征了长度范围为 1 至 10 nm 的表面异质性共聚物薄膜库。 材料特性用于使用三个复杂性不断增加的模型来模拟胶体与这些异质表面的附着效率。 这些模型通过胶体力显微镜和基于质量的沉积测量（使用带有耗散监测的石英晶体微天平）进行验证。最后，该项目探讨了纳米图案对胶体释放作为剪切速度函数的作用。 毛特教授和阿萨特金教授都是扩大女性在科学和工程领域参与的积极倡导者，并将这项研究纳入他们的课程，其中包括环境政策、聚合物科学和分离等主题。

项目成果

High Flux Membranes with Ultrathin Zwitterionic Copolymer Selective Layers with ∼1 nm Pores Using an Ionic Liquid Cosolvent

使用离子液体共溶剂制备具有孔径≤1 nm 的超薄两性离子共聚物选择性层的高通量膜

• DOI: 10.1021/acsapm.9b00409
• 发表时间: 2019-07
• 期刊: ACS Applied Polymer Materials
• 影响因子: 5
• 作者: Bengani;Sadeghi, Ilin;Lounder, Samuel J.;Panzer, Matthew J.;Asatekin, Ayse
• 通讯作者: Asatekin, Ayse

Zwitterion-containing polymer additives for fouling resistant ultrafiltration membranes

用于防污超滤膜的含两性离子聚合物添加剂

• DOI: 10.1016/j.memsci.2017.03.034
• 发表时间: 2017-07
• 期刊: Journal of Membrane Science
• 影响因子: 9.5
• 作者: Kaner, Papatya;Rubakh, Emil;Kim, Do Hyun;Asatekin, Ayse
• 通讯作者: Asatekin, Ayse

Responsive filtration membranes by polymer self-assembly

聚合物自组装响应过滤膜

• DOI: 10.1142/s2339547816500096
• 发表时间: 2016-12
• 期刊: TECHNOLOGY
• 作者: Kaner, Papatya;Bengani;Sadeghi, Ilin;Asatekin, Ayse
• 通讯作者: Asatekin, Ayse

Simple Surface Modification of Poly(dimethylsiloxane) via Surface Segregating Smart Polymers for Biomicrofluidics

通过用于生物微流体的表面隔离智能聚合物对聚（二甲基硅氧烷）进行简单的表面改性

• DOI: 10.1038/s41598-019-43625-5
• 发表时间: 2019-05-14
• 期刊: Scientific Reports
• 影响因子: 4.6
• 作者: A. Gokaltun;A. Gokaltun;A. Gokaltun;Young Bok Abraham Kang;M. Yarmush;M. Yarmush;O. B. Usta;A. Asatekin
• 通讯作者: A. Asatekin

Extremely fouling resistant zwitterionic copolymer membranes with ~ 1 nm pore size for treating municipal, oily and textile wastewater streams

孔径约为 1 nm 的极防污两性离子共聚物膜，用于处理市政、含油和纺织废水流

• DOI: 10.1016/j.memsci.2017.08.058
• 发表时间: 2017-12
• 期刊: Journal of Membrane Science
• 影响因子: 9.5
• 作者: Bengani;Zaf, Ruken Dilara;Culfaz;Asatekin, Ayse
• 通讯作者: Asatekin, Ayse