EAGER: Confining biofouling using sticky stripes
EAGER:使用粘性条纹限制生物污垢
基本信息
- 批准号:1719747
- 负责人:
- 金额:$ 10万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2017
- 资助国家:美国
- 起止时间:2017-03-01 至 2019-09-30
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Ultrafiltration membranes are the state of the art for water treatment. With time, however, bacteria colonize on the surface of the ultrafiltration membranes in a process known as biofouling. Biofouling decreases the transport of purified water across the membrane, requires expensive and time consuming methods to remove the accumulated bacteria, and ultimately, increase the costs, energy consumption of the water purification process, and shortens the lifetime of the membrane. Current strategies to prevent biofouling include use of designer materials that prevent fouling, either via use of new polymers or incorporation of biocides into the existing membrane material. These existing strategies lead to materials that are either expensive, unstable, and/or have decreased performance relative to the precursor membrane. The research will provide evidence that materials chemistry can immobilize a nanomaterial onto a porous antifouling polymer ultrafiltration membrane. This project explores synthesis of a novel membrane hierarchical structure, which utilizes a hydrophilic polymer to increase the flux of pure water across the membrane by confining the hydrophilic polymer layer to an ultrathin upper layer, without blocking pores. Secondly, sacrificial antifouling strips with biocidal properties will be electronspun onto this layer to localize fouling and antimicrobial properties to certain regions of the membrane. In this one year project, the PI will demonstrate that the antifouling fibers will adhere to the ultrathin hydrophilic layer, to alleviate concerns of the high risk nature of the concept. The first method to be explore for deposition of the fibers is electrospinning, while contingency plans include additive manufacturing and 3D printing.
超滤膜是水处理的最新技术。然而,随着时间的推移,细菌会在超滤膜表面定居,这一过程被称为生物污染。生物污染减少了纯净水在膜上的传输,需要昂贵且耗时的方法来去除积累的细菌,最终增加了水净化过程的成本和能耗,并缩短了膜的寿命。目前防止生物污染的策略包括使用防止污染的设计材料,通过使用新的聚合物或将杀菌剂掺入现有的膜材料中。这些现有的策略导致材料要么昂贵,不稳定,和/或相对于前体膜的性能下降。该研究将为材料化学可以将纳米材料固定在多孔防污聚合物超滤膜上提供证据。该项目探索了一种新型膜分层结构的合成,该结构利用亲水性聚合物将亲水性聚合物层限制在超薄的上层,从而增加纯水在膜上的通量,而不会阻塞毛孔。其次,具有生物杀灭性能的牺牲防污条将被电子纺到这一层上,以将污染和抗菌性能定位到膜的某些区域。在这个为期一年的项目中,PI将证明防污纤维将粘附在超薄亲水性层上,以减轻对该概念高风险性质的担忧。要探索的第一种沉积纤维的方法是静电纺丝,而应急计划包括增材制造和3D打印。
项目成果
期刊论文数量(5)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Ultrafiltration Membranes Enhanced with Electrospun Nanofibers Exhibit Improved Flux and Fouling Resistance
- DOI:10.1021/acs.iecr.7b00631
- 发表时间:2017-05-17
- 期刊:
- 影响因子:4.2
- 作者:Dobosz, Kerianne M.;Kuo-Leblanc, Christopher A.;Schiffman, Jessica D.
- 通讯作者:Schiffman, Jessica D.
Fouling-Resistant Hydrogels Prepared by the Swelling-Assisted Infusion and Polymerization of Dopamine
- DOI:10.1021/acsabm.8b00001
- 发表时间:2018-07-16
- 期刊:
- 影响因子:4.7
- 作者:Kolewe, Kristopher W.;Dobosz, Kerianne M.;Schiffman, Jessica D.
- 通讯作者:Schiffman, Jessica D.
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Jessica Schiffman其他文献
Jessica Schiffman的其他文献
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{{ truncateString('Jessica Schiffman', 18)}}的其他基金
BRITE Synergy: Chemically Resilient, Fouling Resistant Separation Membranes Manufactured Using Aqueous Phase Inversion
BRITE Synergy:采用水相转化技术制造的化学弹性、防污分离膜
- 批准号:
2227307 - 财政年份:2023
- 资助金额:
$ 10万 - 项目类别:
Standard Grant
Establishing the Mechanoselective Adhesion of Microorganisms to Biomaterials
建立微生物对生物材料的机械选择性粘附
- 批准号:
1904901 - 财政年份:2020
- 资助金额:
$ 10万 - 项目类别:
Standard Grant
EAGER: Collaborative Research: Detection and analysis of airborne coronavirus with bioinspired membranes
EAGER:合作研究:利用仿生膜检测和分析空气中的冠状病毒
- 批准号:
2029371 - 财政年份:2020
- 资助金额:
$ 10万 - 项目类别:
Standard Grant
Collaborative Research: Bioinspired liquid-gated membranes reduce biofouling
合作研究:仿生液体门控膜减少生物污垢
- 批准号:
1930610 - 财政年份:2019
- 资助金额:
$ 10万 - 项目类别:
Standard Grant
Electrospinning Nanofiber Mats from Aqueous Polyelectrolyte Solutions
用聚电解质水溶液静电纺丝纳米纤维垫
- 批准号:
1727660 - 财政年份:2017
- 资助金额:
$ 10万 - 项目类别:
Standard Grant
BRIGE: Engineering Antifouling Ultrafiltration Membranes Using Polycationic Nanofibers
BRIGE:使用聚阳离子纳米纤维工程防污超滤膜
- 批准号:
1342343 - 财政年份:2013
- 资助金额:
$ 10万 - 项目类别:
Standard Grant
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