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Full-Text Articles in Engineering
Investigation Of The Encapsulation Efficiency Of Hexanal In Y-Cyclodextrin Metal Organic Frameworks, Travis J. Lang
Investigation Of The Encapsulation Efficiency Of Hexanal In Y-Cyclodextrin Metal Organic Frameworks, Travis J. Lang
Materials Engineering
Nanoporous materials have been extensively studied for applications such as drug delivery and organic compound storage. The nanoporous material of this study is a metal organic framework (MOF) which is a coordination of metal ions with organic binders. The structure created by this coordination can be used to absorb organic compounds, such as plant growth regulators, and subsequently release the organic compounds over a prolonged period to extend the storage life of foods. This study is examining the encapsulation efficiency of hexanal in γ-cyclodextrin metal organic frameworks (γ-CDMOFs) as a mechanism for potential active packaging applications. γ-CDMOFs were synthesized by …
Weld Fracture Between C450 Stainless And C300 Maraging Steels In Golf Club Heads, Emily Oreste, Shea Costner
Weld Fracture Between C450 Stainless And C300 Maraging Steels In Golf Club Heads, Emily Oreste, Shea Costner
Materials Engineering
This project studied fractures along the weld on the face of TaylorMade metalwood golf clubs. The weld joint investigated was between investment cast C450 stainless steel and hot rolled C300 maraging steel that had been joined by plasma arc welding (PAW). Cracking in the welds between these two metals was discovered during in-house prototype testing. To understand the differences between the clubs with intact weld joints and clubs with fractured weld joints, the microstructures throughout the weld zones were imaged and a grid of microhardness values of the entire sample cross-section was generated. The images and hardness values were analyzed …
The Production And Characterization Of Chitosan Based Microgels Using A Novel Microfluidic Device To Promote Cell Survival, Kaileen Shevchuk
The Production And Characterization Of Chitosan Based Microgels Using A Novel Microfluidic Device To Promote Cell Survival, Kaileen Shevchuk
Williams Honors College, Honors Research Projects
The purpose of this project is to synthesize and characterize perfluorocarbon modified methacrylamide chitosan (MACF) microgels produced with the use of a capillary-based microfluidic device. Since cell survival and development is highly related to particles physical properties, analysis of microgels set out to determine the particle’s physical properties. I hypothesize that the viscosity of the MACF polymer as well as the amount of photo initiator influence the physical properties of synthesized particles and as a result can generate particles with various features for cell culture in terms of shape, size, charge and swelling abilities. This hypothesis was validated through the …
Polyurea Aerogels: From Nanoscopic To Macroscopic Properties, Tahereh Taghvaee
Polyurea Aerogels: From Nanoscopic To Macroscopic Properties, Tahereh Taghvaee
Doctoral Dissertations
"The morphology of a material is intrinsically a qualitative property and in order to relate nanomorphology to synthetic conditions, it is necessary to express nano/micro-structure quantitatively. In this context, polyurea aerogels were chosen as a model system with demonstrated potential for rich nanomorphology and being guided by a statistical Design-of-Experiments model, a large array of materials (208) with identical chemical composition, but quite different nanostructures were prepared. By reflecting upon the SEM images, it was realized that our first pre-verbal impression about a nanostructure is related to its openness and texture; the former is quantified by porosity (Π), and the …