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-
- Description:
- Natural gas is likely to become one of the main sources of carbon-based chemicals in the next century due to rapidly increasing natural gas production levels. This has created new incentives to find materials that are active and selective towards alkane partial oxidation reactions that are relevant for natural gas...
- Keyword:
- metal-organic frameworks, light alkanes, catalysis, oxidation, natural gas, and density functional theory
- Subject:
- Chemistry, Chemical engineering, and Engineering
- Creator:
- Barona, Melissa
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 01/21/2021
- Date Created:
- 2020-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_720147 and http://dissertations.umi.com/northwestern:15018
-
- Description:
- Protein-based biomaterials are widely used in biomedical applications and mechanical support because of their novel structural flexibility, biocompatibility and mechanical properties. Protein-based biomaterials outperform traditional synthetic materials in various environments as traditional materials lack the diverse chemical functionalities that proteins offer. Novel bioinspired techniques such as directed evolution offer the...
- Subject:
- Bioengineering, Materials Science, and Chemical engineering
- Creator:
- Chen, Yusu
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 09/22/2022
- Date Created:
- 2022-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:16130 and etdadmin_upload_912201
-
- Description:
- Metal-organic frameworks (MOFs) are porous, crystalline materials synthesized by combining metal nodes and organic linkers through self-assembly. The diverse range of building blocks available allows for extensive tunability of MOFs, enabling the optimization of these materials for various applications, such as gas storage, separations, and catalysis. This study aimed to...
- Keyword:
- Molecular modeling, Xylene Separation, Monte carlo simulation, Chemical engineering, and Metal-organic framework
- Subject:
- Chemistry and Chemical engineering
- Creator:
- Li, Zhao
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 08/23/2023
- Date Created:
- 2023-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_1013711 and http://dissertations.umi.com/northwestern:16763
-
- Description:
- Protein-protein interactions are ubiquitous in living systems, and mediate important cellular processes from decision making to immunity against pathogens. Furthermore, protein-protein interactions are key to many protein therapeutics, pathogen diagnostics, and numerous synthetic biology applications. As a result, there has been significant effort to develop methods to express potential protein...
- Keyword:
- Minibinder, Antibodies, Diagnostics, Protein Protein Interactions, High-Throughput Screening, and Cell-Free Protein Synthesis
- Subject:
- Bioengineering and Chemical engineering
- Creator:
- hunt, Andrew
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 09/22/2022
- Date Created:
- 2022-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_911343 and http://dissertations.umi.com/northwestern:16125
-
- Description:
- Conventional cross-linked polymers are widely used owing to their outstanding stability and performance. However, permanent cross-links in these polymer networks prevent them from being recycled or reprocessed at the end of life, leading to major sustainability and economic losses. The recycling issue associated with polyurethane (PU) thermoset wastes exemplifies such...
- Keyword:
- Cross-linked polymers, Covalent adaptable networks, Sustainability, Reprocessable polymer networks, Dynamic chemistry, and Polyurethane
- Subject:
- Chemical engineering
- Creator:
- Chen, Xi
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 01/21/2021
- Date Created:
- 2020-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_742695 and http://dissertations.umi.com/northwestern:15099
-
- Description:
- Complex fluids are ubiquitous, from natural materials to manufactured products. Understanding their behavior under flow is vital for engineering these materials. Extensional flow, despite being industrially relevant and often producing dominant impacts upon complex fluids, is an underserved topic compared to shear flow due to a lack of reliable apparatuses...
- Keyword:
- cross-slot flow, carbon nanotube suspension, wormlike micelle, x-ray scattering, planar extensional flow, and lamellar surfactant
- Subject:
- Chemical engineering
- Creator:
- Luo, Binbin
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2018-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_624324 and http://dissertations.umi.com/northwestern:14431
-
- Description:
- No two cells in a population are identical to each other. Cell populations are almost universally heterogeneous, with their heterogeneity or variability often underlying complex emergent behavior and phenotypes. Heterogeneity presents a challenge to the discovery, characterization, and control of multicellular systems. Heterogeneity exists across multiple scales, ranging from the...
- Keyword:
- Circadian Rhythms, Systems Biology, Control Theory, Dynamical Systems, and Mathematical Modeling
- Subject:
- Bioengineering and Chemical engineering
- Creator:
- Balakrishnan, Narasimhan
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 06/22/2022
- Date Created:
- 2022-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_879749 and http://dissertations.umi.com/northwestern:15942
-
- Description:
- Metal–organic frameworks (MOFs) are a class of crystalline materials composed of metal nodes connected by organic linkers. Due to their high degree of synthetic tunability, MOFs have been considered for a wide range of applications, including many that rely on a change in oxidation state. While most MOFs are generally...
- Keyword:
- Computational screening, Density functional theory, Machine learning, and Metal-organic framework
- Subject:
- Chemical engineering
- Creator:
- Rosen, Andrew Scott
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 10/07/2021
- Date Created:
- 2021-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_838355 and http://dissertations.umi.com/northwestern:15675
-
- Description:
- Metal-organic frameworks (MOFs) are a class of nanoporous materials with highly tunable pore shape and chemistry. They are synthesized in a "building block" approach to form crystalline porous materials, which have been explored for diverse applications including gas storage and separations. Given the enormous size of the MOF design space,...
- Keyword:
- Molecular modeling, Adsorption, Cheminformatics, Database, Data science, and Metal-organic framework
- Subject:
- Chemical engineering
- Creator:
- Bucior, Benjamin James
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2019-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_679201 and http://dissertations.umi.com/northwestern:14767
-
- Description:
- Interpenetrating polymer networks (IPNs) are multicomponent materials that enhance the compatibility of otherwise immiscible polymers by trapping the microstructure in a non-equilibrium state. By combining polymers with vastly different moduli, IPNs effectively disperse rigid polymers within a soft matrix, resulting in a reinforced elastomer. This approach significantly increases the modulus...
- Keyword:
- Phase Seperation, Polymer Physics, Silicone Elastomer, Interpenetrating Polymer Networks, and Single Molecule Localization Microscopy
- Subject:
- Polymer chemistry, Plastics, and Chemical engineering
- Creator:
- Heyl, Tyler
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 08/23/2023
- Date Created:
- 2023-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_1001901 and http://dissertations.umi.com/northwestern:16662
-
- Description:
- From energy to materials, hydrocarbon chemistry drives our world. Stemming from the petrochemical industry, our understanding of CxHy combinations has allowed society to flourish, and hydrocarbons will likely remain valuable species in our future even as we transition to greener carbon and hydrogen sources. Currently, one of the most efficient...
- Keyword:
- nickel, catalysis, modeling, DFT, oligomerization, and acid zeolite
- Subject:
- Chemical engineering
- Creator:
- Koninckx, Elsa
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 06/22/2022
- Date Created:
- 2022-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_900740 and http://dissertations.umi.com/northwestern:16036
-
- Description:
- Efficient and sustainable utilization of global resources represents a grand but achievablechallenge. By leveraging biology, we can transform abundant, but recalcitrant resources like lignin to products ranging from fuel to medicine to polymers. Efforts to do so are expansive, but challenges remain, due in no small part to the difficulty...
- Keyword:
- Microbiology, Metabolic Engineering, Acinetobacter baylyi ADP1, Scale-Up, Industrial Microbiology, and Lignin
- Subject:
- Chemical engineering
- Creator:
- Arvay, Erika
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 05/31/2023
- Date Created:
- 2023-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_970840 and http://dissertations.umi.com/northwestern:16448
-
- Description:
- Conventionally cross-linked polymers, which comprise the vast majority of commercial thermosets, cannot be decross-linked after curing or flow upon heating. Therefore, they cannot be effectively recycled into high-value products at end-of-life. Their lack of recyclability is due to the permanent cross-links, which restrict the flow of the chains in the...
- Keyword:
- Dynamic, Polymers, Sustainability, Plastics, Recycling, and Crosslinking
- Subject:
- Materials Science, Sustainability, and Chemical engineering
- Creator:
- Bin Rusayyis, Mohammed Abdulaziz
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 05/31/2023
- Date Created:
- 2023-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_986182 and http://dissertations.umi.com/northwestern:16581
-
- Description:
- Biological therapeutics have revolutionized the way we treat cancer due to their ability to target tumors discriminately, leaving healthy cells unaffected. However, our inability to tailor the structure of biologics may hamper their optimization for efficacy. This lack of programmability contributes to factors such as immunogenic responses, inability to penetrate...
- Keyword:
- Nanotechnology, Cancer therapy, Synthetic biology, Synthetic chemistry, Protein engineering, and Protein scaffolds
- Subject:
- Bioengineering, Chemistry, and Chemical engineering
- Creator:
- Kimmel, Blaise Russel
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/02/2022
- Date Created:
- 2021-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_852716 and http://dissertations.umi.com/northwestern:15804
-
- Description:
- Biological systems comprise diverse collections of cellular and non-cellular components with intricate relationships and dynamic interactions. To gain system-level understanding, we must be able to accurately model these systems, both experimentally and computationally. Agent-based models (ABMs) in particular are a uniquely intuitive, modular, and flexible framework capable of supporting multi-scale,...
- Keyword:
- emergent behavior, systems biology, and agent-based modeling
- Subject:
- Biology, Chemical engineering, and Computer science
- Creator:
- Yu, Jessica
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 01/21/2021
- Date Created:
- 2020-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_743010 and http://dissertations.umi.com/northwestern:15106
-
- Description:
- Oil paintings are complex works of art, even on the molecular level. Drying oils cure into a solid film through autoxidation and polymerization reactions and then degrade, leading to changes in material properties and film stability. This chemistry can be captured in a computational model and used by researchers in...
- Keyword:
- Pyrolysis, Polyolefin, Autoxidation, Kinetic modeling, Linseed oil, and Polymer reaction engineering
- Subject:
- Polymer chemistry and Chemical engineering
- Creator:
- Harmon, Rebecca E
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 06/22/2022
- Date Created:
- 2022-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_900742 and http://dissertations.umi.com/northwestern:16037
-
- Description:
- Conventional polymer networks are composed of strong, fixed covalent cross-links. The covalent cross-links render polymer networks with outstanding mechanical properties, heat stability, and chemical resistance; however, they also prevent polymer networks from being decross-linked or/and recycled into similar-value products at the end of their life, leading to environmental and economic...
- Subject:
- Chemical engineering
- Creator:
- Hu, Sumeng
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 09/22/2022
- Date Created:
- 2022-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_912132 and http://dissertations.umi.com/northwestern:16129
-
- Description:
- This thesis focuses on identifying structure-property-performance relationships in supported nanoparticle catalysts, where an active catalyst material is supported on a high surface area substrate. Identifying these relationships in supported nanoparticle catalysts can be quite challenging, as the complex structure of these catalysts results in numerous potential sources for changes to...
- Keyword:
- Surfaces, Catalysis, Nanoparticles, Interfaces, Density Functional Theory, and Electron Microscopy
- Subject:
- Materials Science and Chemical engineering
- Creator:
- Mansley, Zachary Ryan
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/02/2022
- Date Created:
- 2021-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:15855 and etdadmin_upload_862543
-
- Description:
- Biomass has the potential to be our country’s leading renewable source of energy. Specifically, fast pyrolysis is a promising method for the conversion of biomass to valuable fuels and chemicals. Given that fast pyrolysis has a residence time of about two seconds, computational methods are particularly useful in obtaining product...
- Keyword:
- lignin structure, Markov Chain Monte Carlo, microkinetic model, zeolite, catalytic upgrading, and biomass
- Subject:
- Chemical engineering
- Creator:
- Dellon, Lauren
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2019-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_670422 and http://dissertations.umi.com/northwestern:14723
-
- Description:
- Enzyme substrate promiscuity has significant implications for metabolic engineering. The ability to predict the space of possible enzymatic side reactions is crucial for elucidating underground metabolic networks in microorganisms, as well as harnessing novel biosynthetic capabilities of enzymes to produce desired chemicals. Reaction rule-based cheminformatics platforms have been implemented to...
- Subject:
- Chemical engineering
- Creator:
- Ni, Zhuofu
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 06/22/2022
- Date Created:
- 2022-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_883948 and http://dissertations.umi.com/northwestern:15963
-
- Description:
- Chimeric antigen receptor (CAR) T-cell therapies marry advances in cellular engineering with personalized medicine to provide patient-specific, targeted cancer treatments. Though current CAR T-cell therapies successfully target blood cell cancers, treating solid tumors has proven to be more challenging. Solid-tumor CAR designs must overcome several challenges, including tumor microenvironment barriers...
- Keyword:
- agent-based model, CAR T-cell therapy, social justice, anti-racism diversity equity and inclusion, computational biology, and engineering education
- Subject:
- Bioengineering, Education, and Chemical engineering
- Creator:
- Prybutok, Alexis Nicole
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 06/22/2022
- Date Created:
- 2022-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:16073 and etdadmin_upload_902739
-
- Description:
- Supported transition metal oxides are an important class of catalysts with a wide range of industrially relevant applications. However, commonly used synthesis techniques to prepare these catalysts often result in a complex mixture of surface species. This inhomogeneity makes it difficult to understand what specific structures might be responsible for...
- Keyword:
- Nanoshapes, Catalysis, Ceria, Emission catalysis, and Cobalt Oxide
- Subject:
- Chemical engineering
- Creator:
- Savereide, Louisa
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2018-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:14481 and etdadmin_upload_627632
-
- Description:
- One of the greatest challenges in heterogeneous catalysis is the rational design and development of new catalytic systems, due to synthetic limitations in the design of solid catalysts and inhomogeneity of chemical sites at solid surfaces. This obfuscates understanding of catalyst behavior and slows improvements of processes. One approach to...
- Subject:
- Inorganic chemistry, Chemistry, and Chemical engineering
- Creator:
- Hicks, Kenton
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 08/23/2023
- Date Created:
- 2023-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_996080 and http://dissertations.umi.com/northwestern:16635
-
- Description:
- Organismal development depends upon countless cell decisions to adopt particular fates at the appropriate time and place. These decisions are executed by systems of biochemical reactions called regulatory networks. Elucidating the general principles underlying the structure and function of these networks is vital to understanding all developmental processes, as well...
- Keyword:
- Development, Quantitative Biology, Cell Decisions, Mosaic Analysis, Drosophila, and Metabolism
- Subject:
- Chemical engineering and Developmental biology
- Creator:
- Bernasek, Sebastian Michal
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2019-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_663067 and http://dissertations.umi.com/northwestern:14676
-
- Description:
- This thesis centers around the development and application of novel high throughput lithography tools. These advances help: 1) establish the field of nanocombinatorics, where massive libraries (termed megalibraries) of materials can be prepared in a positionally encoded manner and then screened for functional activity, and 2) advance stereolithographic 3D printing...
- Keyword:
- Scanning Probe, Nanolithography, 3D Printing, Lithography, Combinatorial Libraries, and Additive Manufacturing
- Subject:
- Nanotechnology, Materials Science, and Chemical engineering
- Creator:
- Hedrick, James Lupton
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2019-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_662564 and http://dissertations.umi.com/northwestern:14647
-
- Description:
- Mixing by cutting-and-shuffling (like that for a deck of cards or a Rubik's cube) is a paradigm that has not been studied in detail even though it can be applied in a variety of situations including the mixing of granular materials. Mathematically, cutting- and-shuffling is described by piecewise isometries (PWIs),...
- Keyword:
- granular materials, mixing, machine learning, piecewise isometries, cutting-and-shuffling, and interval exchange transforms
- Subject:
- Applied mathematics, Chemical engineering, and Mechanical engineering
- Creator:
- Lynn, Thomas Ferguson
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 06/22/2022
- Date Created:
- 2022-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_881325 and http://dissertations.umi.com/northwestern:15951
-
- Description:
- Currently, platelet transfusions, possessing profound clinical importance in the clotting of blood and healing of wounds, are entirely derived from human volunteer donors. This approach is limited by a 5-day shelf life, the potential risk of contamination, and differences in donor/recipient immunology. In vivo, platelets are formed when bone marrow...
- Keyword:
- Applied sciences, Biological sciences, Megakaryocyte, Cell therapies, Computational fluid dynamics, and Microfluidic bioreactor
- Subject:
- Bioengineering, Chemical engineering, and Cellular biology
- Creator:
- Martinez, Andres Felipe
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2019-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_657405 and http://dissertations.umi.com/northwestern:14571
-
- Description:
- Molybdenum oxides and sulfides are earth-abundant materials known to catalyze a wide array of reactions, including dehydrogenation, hydrotreating, and higher alcohols synthesis. In particular, alkane and alcohol dehydrogenation are of interest given recent shifts in the energy landscape away from traditional petroleum feedstocks and towards natural gas and renewable energy...
- Keyword:
- metal sulfides, metal oxides, alkane dehydrogenation, heterogeneous catalysis, and molybdenum
- Subject:
- Chemical engineering
- Creator:
- Cheng, Emily
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 10/07/2021
- Date Created:
- 2021-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:15616 and etdadmin_upload_828616
-
- Description:
- By 2030, up to half of the world’s population is projected to suffer from water insecurity: a chronic scarcity of potable water due to rapidly warming temperatures, increased agricultural demand, and pollution. The health impacts of contaminated water are profound: hundreds of thousands of global deaths each year are ascribed...
- Keyword:
- diagnostics, water quality, cell-free, and synthetic biology
- Subject:
- Bioengineering, Chemical engineering, and Public health
- Creator:
- Silverman, Adam Daniel
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 06/28/2021
- Date Created:
- 2021-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:15551 and etdadmin_upload_817796
-
- Description:
- Metal nanoparticles supported on oxides are versatile systems. Ordered arrays of multimetallic nanoparticles of different sizes and surface densities can be synthesized using block copolymer-mediated nanolithography techniques. Metal nanoparticles on planar supports like silica can be utilized for catalyst discovery. Under reaction conditions and at high temperatures, the changing surface...
- Keyword:
- High Temperature, Thermal Entrenchment, Silica nanopores, Suzuki Reaction, Nanopores, and Metal nanoparticles
- Subject:
- Nanotechnology, Nanoscience, and Chemical engineering
- Creator:
- Gosav, Abha Anand
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2019-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_673365 and http://dissertations.umi.com/northwestern:14732
-
- Description:
- Interfacial effects play a critical role in perturbing the properties of polymeric materials. The average properties of polymer materials with substantial specific interfacial area, e.g., ultrathin films, nanorods, and polymer nanocomposites, often deviate significantly from the bulk responses. Much of the past research has focused on systems in which free...
- Keyword:
- Polymer Nanocomposites, Nanoconfinement effects, Interfacial Effects, and Polymer Thin films
- Subject:
- Chemical engineering
- Creator:
- Wei, Tong
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/01/2021
- Date Created:
- 2020-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_751511 and http://dissertations.umi.com/northwestern:15170
-
- Description:
- While metabolic engineering can enable the sustainable bioproduction of new materials, efforts are often impeded by pathway bottlenecks. To mitigate the effects of toxic or reactive intermediates and resource competition resulting from heterologous pathway incorporation, bacterial microcompartments (MCPs) have recently been considered for engineered compartmentalization in bacterial host organisms. MCPs...
- Keyword:
- Tag Engineering, Metabolic Engineering, Cargo Encapsulation, Bacterial Microcompartments, and Genomic Integration
- Subject:
- Bioengineering and Chemical engineering
- Creator:
- Nichols, Taylor Marie
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 06/28/2021
- Date Created:
- 2021-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_802174 and http://dissertations.umi.com/northwestern:15500
-
- Description:
- Two-step, solar thermochemical water splitting using nonstoichiometric oxides has emerged as an attractive approach for large-scale hydrogen production. Perovskite-structured oxides, with their wide tunability, offer the potential for high fuel productivity at moderate operating temperatures. Given the vast chemical space, the materials development effort is carried out here in combination...
- Keyword:
- Redox Thermodynamics and Material's Kinetics, Thermochemical Hydrogen Production, Oxygen Nonstoichiometry, DFT Computational Predictions, Inorganic Perovskites, and Thermo-kinetic Controlled Dynamics
- Subject:
- Materials Science, Chemical engineering, and Energy
- Creator:
- Qian, Xin
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 04/15/2021
- Date Created:
- 2021-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_797495 and http://dissertations.umi.com/northwestern:15479
-
- Description:
- Nucleic acids not only are the building blocks of life but also a class of attractive macromolecular therapeutics. However, the delivery of therapeutic oligonucleotides into cells has been a major challenge due to their large size and highly negatively charged backbone. Spherical nucleic acids (SNAs) are a class of emerging...
- Keyword:
- Nanomedicine, Gene regulation, and Drug delivery
- Subject:
- Materials Science, Biomedical engineering, and Chemical engineering
- Creator:
- Zhu, Shengshuang
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2019-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_672179 and http://dissertations.umi.com/northwestern:14728
-
- Description:
- The need to rapidly develop and produce life-saving vaccines and therapeutics is critical for overcoming pandemics in a global economy. Recent advances in automation and cell-free systems have opened new avenues for expediting optimization and production of biologic vaccines and therapeutics. A key consideration for the development of protein biologics...
- Keyword:
- biotechnology, bioproduction, glycosylation, vaccines, cell-free protein synthesis, and synthetic biology
- Subject:
- Chemical engineering
- Creator:
- Hershewe, Jasmine Marie
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/01/2021
- Date Created:
- 2020-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_780613 and http://dissertations.umi.com/northwestern:15396
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- Description:
- Conventional polymer network materials, e.g., rubber tires, cannot be efficiently recycled for high-value applications because of their permanent network structures. Therefore, at the end of use, none or only a small fraction of the economic value can be recovered from these materials. Scrapped tires demonstrate well this issue along with...
- Keyword:
- Reprocessable, Recyclable, Cross-linked polymer network, Adaptable covalent network, Dynamic chemistry, and Polymer
- Subject:
- Chemical engineering
- Creator:
- Li, Lingqiao
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2019-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_675178 and http://dissertations.umi.com/northwestern:14741
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- Description:
- The effective capture and detoxification of chemical warfare agents (CWAs) is a pressing need in the modern world. Materials are needed for both the destruction of weapon stockpiles and personal protection via fabric coatings or respirators. Attractive candidates for these applications include metal–organic frameworks (MOFs) – highly crystalline materials composed...
- Keyword:
- metal−organic framework, nerve agent, hydrolysis, density functional theory, quantitative structure-activity relationship, and chemical warfare agent
- Subject:
- Chemistry, Chemical engineering, and Computational chemistry
- Creator:
- Mendonca, Matthew Lee
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 01/21/2021
- Date Created:
- 2020-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:15063 and etdadmin_upload_739036
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- Description:
- Cells are primarily comprised of metal ions, small molecules, proteins, lipids, and nucleic acids. The ability to probe these molecules in single living cells can shed new light on chemical processes inside of cells or allow disease diagnosis based on molecular profiling. However, there exists a lack of tools that...
- Subject:
- Chemical engineering
- Creator:
- Ebrahimi, Sasha
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 10/06/2021
- Date Created:
- 2021-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_829912 and http://dissertations.umi.com/northwestern:15624
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- Description:
- Metal-organic frameworks are crystalline, nanoporous materials formed by metal nodes connected by organic ligands. MOFs represent an exciting approach to materials design where a material with desired properties can be made by choosing the compatible nodes, linkers and topologies independently. MOFs are highly porous and have high surface areas...
- Keyword:
- metal-organic frameworks, adsorption, n-alkanes, zeolitic imidazolate framework, and molecular simulations
- Subject:
- Chemical engineering
- Creator:
- Gopalan, Arun
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 10/07/2021
- Date Created:
- 2021-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:15622 and etdadmin_upload_829815
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- Description:
- Recent advances in combinatorial chemistry, synthetic biology, and ‘omics’ research require high-throughput methods for performing and analyzing thousands to millions of reactions in one day. However, it is a challenge to engineer high-throughput systems that can autonomously conduct and analyze such a large number of reactions in a generalizable and...
- Keyword:
- Self-assembled monolayers, Kinetics, Spatiotemporal, SAMDI Mass Spectrometry, MALDI Imaging Mass Spectrometry, and Microfluidics
- Subject:
- Bioengineering, Chemistry, and Chemical engineering
- Creator:
- Grant, Jennifer
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2018-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:14444 and etdadmin_upload_625853
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- Description:
- Pollution-intensive industrial manufacturing processes threaten the health of ecosystems and societies through toxic waste streams and energy intensive processes that lead to greenhouse gas emissions. Biological systems present more sustainable routes to many useful industrial chemicals by using enzymes at low temperatures, but the time and effort required to optimized...
- Keyword:
- Cell-free, Synthetic biology, Metabolic engineering, and Biomanufacturing
- Subject:
- Molecular biology and Chemical engineering
- Creator:
- Rasor, Blake
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 08/23/2023
- Date Created:
- 2023-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_994770 and http://dissertations.umi.com/northwestern:16630
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- Description:
- The Escherichia coli ribosome is a molecular machine capable of sequence-defined polymerization of -amino acids into proteins, a feat unmatched by any other current synthetic catalyst. It is complex in its structure, comprised of 3 RNA parts (the 5S, 16S, and 23S ribosomal RNAs) and 54 ribosomal proteins (r-proteins). Efforts...
- Keyword:
- Synthetic Biology, RNA Design, and Ribosome Engineering
- Subject:
- Bioengineering, Bioinformatics, and Chemical engineering
- Creator:
- Kim, Do Soon
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 10/06/2021
- Date Created:
- 2020-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_831423 and http://dissertations.umi.com/northwestern:15634
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- Description:
- Label-free assays, and particularly those based on the combination of mass spectroscopy with surface chemistries, enable high-throughput experiments of a broad range of reactions. However, these methods can still require the incorporation of functional groups that allow immobilization of reactants and products to surfaces prior to analysis. In this thesis,...
- Keyword:
- Nanotechnology, SAMDI, Surface chemistry, Microarray, Mass Spectrometry, and Reactions
- Subject:
- Chemistry, Biomedical engineering, and Chemical engineering
- Creator:
- Helal, Kazi Yasin
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 04/28/2020
- Date Created:
- 2019-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:15011 and etdadmin_upload_719318
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- Description:
- As the global population grows, consumption of water, energy, and food will also increase, placing stresses on these sectors, raising the importance of the Water-Energy-Food Nexus (WEFN). However, operation of WEFN systems are currently not sustainable. It is thus crucial to design WEFN systems to be sustainable from local to...
- Keyword:
- Life Cycle Analysis, Ecology, Economics, Sustainability, Optimization, and Modeling
- Subject:
- Chemical engineering
- Creator:
- Garcia, Daniel
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2019-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:14526 and etdadmin_upload_639822
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- Description:
- Cellular translation is responsible for the synthesis of proteins, a highly diverse class of macromolecules that form the basis of biological function. In Escherichia coli, harnessing and engineering of the biomolecular components of translation, such as ribosomes, transfer RNAs (tRNAs) and aminoacyl-tRNA synthetases, has led to both biotechnology products (i.e.,...
- Keyword:
- Genome engineering, Directed evolution, Synthetic biology, and Cell chassis development
- Subject:
- Bioengineering and Chemical engineering
- Creator:
- Gowland, Samuel Luke Walker
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/16/2023
- Date Created:
- 2022-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:16336 and etdadmin_upload_943800
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- Description:
- Polymers permeate almost all facets of modern life. For end use applications, these materials are typically processed into products at elevated temperatures under which molten polymers are subjected to flow. Particular interest lies in the flow-induced crystallization behavior of polymer melts under extensional flow, which is a flow type dominant...
- Keyword:
- x-ray scattering, flow-induced crystallization, and extensional flow
- Subject:
- Chemical engineering
- Creator:
- Kweon, Mu Sung
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2019-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:14529 and etdadmin_upload_639972
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- Description:
- Supported vanadium oxide materials have been extensively studied for alkane oxidative dehydrogenation (ODH) reactions due to their high activity and selectivity. The catalytic activity of supported VOx materials is influenced by the surface coverage of VOx sites and hence the distribution of V=O, V-O-V, and V-O-S (S, support) bonds. The...
- Keyword:
- vanadium oxide, oxidative dehydrogenation, heterogeneous catalysis, and atomic layer deposition
- Subject:
- Chemical engineering
- Creator:
- Samek, Izabela Anna
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2019-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_675097 and http://dissertations.umi.com/northwestern:14740
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- Description:
- Nanotechnology research broadly encompasses the exploration of the unique chemical,optical, electronic, or biological properties of materials with dimensions < 1 µm. Inorganic nanoparticles are one such class of materials, with properties that are exceptionally sensitive to particle size and structure. This is especially evident in the field of heterogeneous chemical...
- Keyword:
- Parallelized, Catalysis, Nanoreactor, Nanoparticle, and Synthesis
- Subject:
- Nanotechnology, Materials Science, and Chemical engineering
- Creator:
- Jibril, Liban
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 06/22/2022
- Date Created:
- 2022-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:16023 and etdadmin_upload_899605
-
- Description:
- Segregation of polydisperse granular materials remains to be a challenging problem in many industrial processes. However, most studies have focused either on bidisperse (two different particle size species) materials, which are not representative of most real mixtures, or on polydisperse materials in an idealized simple geometry. Additionally, most studies have...
- Keyword:
- Segregation, Polydisperse, and Particle flow
- Subject:
- Chemical engineering and Engineering
- Creator:
- Deng, Zhekai
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2019-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_687531 and http://dissertations.umi.com/northwestern:14851
-
- Description:
- Heterogeneous catalysts based on metal oxides are of significant interest for many industrial chemical reactions. These catalysts, however, often suffer from ill-defined structures that preclude better understanding of the surface phenomena. Thus, structurally well-defined catalysts have received growing attention by making it feasible to understand the kinetics and reaction mechanisms....
- Subject:
- Chemical engineering
- Creator:
- Ahn, Sol
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2019-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:14583 and etdadmin_upload_659552
-
- Description:
- Granular mixing has received less attention than fluid mixing due to the unique properties of granular materials and the complexity of their flow behaviors. Unlike fluid flows, where a continuum perspective accurately captures flow behavior, neither a continuum nor a discrete perspective by itself can describe the global behaviors of...
- Keyword:
- Granular materials, Mixing and segregation, and tumbler flow
- Subject:
- Chemical engineering
- Creator:
- Yu, Mengqi
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/01/2021
- Date Created:
- 2020-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_780245 and http://dissertations.umi.com/northwestern:15389
-
- Description:
- Shale gas is a critical energy resource that is comprised primarily of light gases that are expensive to transport. Because these gases are geographically spread-out and there is insufficient capacity to transport them to centralized processing facilities, they must often be flared, leading to great sources of resource waste and...
- Keyword:
- active site proximity, density functional theory, shale gas, zeolite catalysis, degree of rate control, and microkinetic modeling
- Subject:
- Nanoscience, Chemical engineering, and Computational chemistry
- Creator:
- Marsden, Grant Thomas
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 05/31/2023
- Date Created:
- 2023-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:16512 and etdadmin_upload_983488
-
- Description:
- The fields of metabolic engineering and synthetic biology have emerged in recent years with the heavily overlapping goals of sustainable bioproduction of chemical goods and predictable and precise engineering of biological function.1 However, efforts to reach commercially relevant titers have stalled.2 Many challenges arise during optimization of each production platform,...
- Keyword:
- Synthetic Biology, Limonene, Non-growth Metabolism, and Metabolic Engineering
- Subject:
- Chemical engineering
- Creator:
- Bothfeld, William Henry
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2018-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_621404 and http://dissertations.umi.com/northwestern:14420
-
- Description:
- When attached to another species (e.g. a nanoparticle), the sequence specificity of DNA can be repurposed to program interactions between such entities and to direct their formation into ordered structures. The research presented in this thesis aims to push the boundaries of structures that can be made via this approach....
- Keyword:
- image analysis, nanoparticle, DNA, symmetry breaking, high-throughput, and crystal engineering
- Subject:
- Nanotechnology, Chemistry, and Chemical engineering
- Creator:
- Laramy, Christine
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2018-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_617692 and http://dissertations.umi.com/northwestern:14404
-
- Description:
- Since their introduction nearly a century ago, protein vaccines and therapeutics have revolutionized our ability to prevent and treat human disease. However, existing production processes for biopharmaceuticals are technically complex and rely on living cells, which necessitates highly centralized manufacturing in large-scale production facilities, specialized equipment, and cold-chain distribution. With...
- Keyword:
- glycoprotein therapeutics, cell-free protein synthesis, decentralized biomanufacturing, synthetic biology, STEM education, and conjugate vaccines
- Subject:
- Chemical engineering
- Creator:
- Stark, Jessica C
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Modified:
- 02/12/2020
- Date Created:
- 2019-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_686044 and http://dissertations.umi.com/northwestern:14826