| 项目编号: | 1604398
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| 项目名称: | Characterization of the Dynamic Behavior of Particle Contact Angle at an Oil/Water Interface |
| 作者: | Craig Snoeyink
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| 承担单位: | Texas Tech University
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| 批准年: | 2016
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| 开始日期: | 2016-09-01
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| 结束日期: | 2019-08-31
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| 资助金额: | 336094
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| 资助来源: | US-NSF
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| 项目类别: | Standard Grant
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| 国家: | US
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| 语种: | 英语
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| 特色学科分类: | Engineering - Chemical, Bioengineering, Environmental, and Transport Systems
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| 英文关键词: | interface
; three-dimensional particle
; packed particle
; current contact angle measurement technique
; contact angle
; particle dynamics
; small colloidal particle
; well-controlled interface deformation
; particle shape
; contact angle distribution
; overall behavior
; colloidal particle
; nonspherical particle
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| 英文摘要: | CBET - 1604398
PI: Snoeyink, Craig
Immiscible liquid drops that are coated with small colloidal particles are known as colloidosomes. They are used in a variety of technological applications, including drug delivery, tissue engineering, and food preservation. Water colloidosomes in air are used in gas sensing and as ball bearings. The goal of this project is to develop a new experimental technique to determine how the contact angles between the surfaces of the particles and the interface influence the dynamics of the interface and the overall behavior of the colloidosomes. The results will be useful to practitioners to design better and more robust colloidsomes for use in biomedical, sensing, and consumer products. The project will provide opportunities for students, especially those from underrepresented groups, to participate in the research, and the researchers will develop a class in soft matter for a summer camp for grade five through eleven girls.
Three-dimensional particle locating Bessel Beam microscopy will be built into an interfacial rheometer to allow real-time monitoring of the three-dimensional position of colloidal particles at an interface under highly controlled interfacial deformations including steady and oscillatory shear. Images obtained from the microscope will be analyzed to determine the position and orientation of nonspherical particles with twenty nanometer resolution. The effects of particle shape, interfacial microstructure, and interfacial flow on the contact angle distribution and particle dynamics will be determined. This method represents a significant improvement over current contact angle measurement techniques, because it will provide real-time data on the locations and orientations of densely packed particles under well-controlled interface deformations. |
| 资源类型: | 项目
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/91032
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| Appears in Collections: | 全球变化的国际研究计划
科学计划与规划
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| Recommended Citation: | |
Craig Snoeyink. Characterization of the Dynamic Behavior of Particle Contact Angle at an Oil/Water Interface. 2016-01-01.
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