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-
- Description:
- The opposing activities of phosphatases and kinases determine the phosphorylation status of proteins, yet kinases have received disproportionate attention in studies of cellular processes, with the roles of phosphatases remaining less understood. This dissertation describes the use of self-assembled monolayer laser desorption/ionization mass spectrometry (SAMDI-MS) together with peptide arrays to...
- Keyword:
- SAMDI-MS, Phosphatases, High-Throughput Experiments, Enzyme Specificity, β-Catenin, and Peptide Arrays
- Subject:
- Chemistry, Biochemistry, and Cellular biology
- Creator:
- Huang, Che-Fan
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 06/28/2021
- Date Created:
- 2021-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_819016 and http://dissertations.umi.com/northwestern:15570
-
- Description:
- Two-dimensional (2D) covalent organic frameworks (COFs) are a class of crystalline polymer networks that polymerize and crystallize into layered structures, characterized by their atomically precise structure, permanent porosity and high modularity. Imine-linked COFs are one of the most important and promising classes of macromolecular sheets, which form by the condensation...
- Keyword:
- Covalent organic frameworks
- Subject:
- Polymer chemistry and Chemistry
- Creator:
- Ji, Woojung
- 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:15494 and etdadmin_upload_799668
-
- Description:
- Organic photovoltaics offer an opportunity to make solar cells more affordable and widely accessible using cheap, solution-processable light-absorbing layers. In order to realize new technologies, a fundamental understanding of organic chromophore photophysics is required to overcome efficiency limitations. Throughout this doctoral work, I investigated the kinetic and physical characteristics of...
- Keyword:
- non-linear spectroscopy, charge separation, singlet fission, environmental justice, and organic photovoltaic
- Subject:
- Physical chemistry, Chemistry, and Energy
- Creator:
- Ramirez, Carolyn E.
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 09/22/2022
- Date Created:
- 2022-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_916673 and http://dissertations.umi.com/northwestern:16153
-
- Description:
- Molecular-oriented single-site heterogeneous catalysis is a powerful approach to address the long-lasting challenge of the structure-activity relationship in catalysis, as it allows molecular level control of the catalytic centers and thus the elucidation of reaction mechanisms. In this dissertation, single-site molybdenum-dioxo species have been immobilized on carbon supports, i.e. activated...
- Keyword:
- Molybdenum-oxo, Carbon support, and Single-site heterogeneous catalysis
- Subject:
- Chemistry
- Creator:
- Li, Jiaqi
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 06/28/2021
- Date Created:
- 2022-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:15519 and etdadmin_upload_813943
-
- Description:
- Over the past 15 years, there have been significant developments in expanding the singlet fission (SF) library and understanding the SF mechanism. SF has been a topic of interest in recent years due to its potential applications in organic photovoltaics. During SF, a singlet exciton energetically down-converts into two triplet...
- Subject:
- Physical chemistry and Chemistry
- Creator:
- Chen, Michelle
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/01/2021
- Date Created:
- 2020-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_768182 and http://dissertations.umi.com/northwestern:15313
-
- Description:
- Part I: Design of Photo-Responsive Molecules towards Biomedical ApplicationsThe use of light to control systems provides numerous advantages such as spatiotemporal precision, non-invasive penetration, and precise energy input. Specifically, molecules that undergo photoinduced cleavage, photoremovable protecting groups (PPGs) have emerged as an active area of research due to their broad...
- Subject:
- Polymer chemistry, Chemistry, and Materials Science
- Creator:
- Wang, Xiaodi
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/01/2021
- Date Created:
- 2020-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:15393 and etdadmin_upload_780358
-
- Description:
- The idea that structure determines the properties of a material is a powerful concept in chemistry and in all fields in which chemistry is important, including engineering, medicine, and materials science. My research aims to better understand the structure-property relationships of a class of materials known as metal–organic frameworks (MOFs)....
- Keyword:
- structure property relationships, contrast media, diamond anvil cell , metal–organic framework, nanomaterials, and materials chemistry
- Subject:
- Nanotechnology, Chemistry, and Materials Science
- Creator:
- Robison, Lee
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 06/28/2021
- Date Created:
- 2020-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_795236 and http://dissertations.umi.com/northwestern:15463
-
- Description:
- This work examines important heterogeneous processes of organic molecules on surfaces, in the contexts of atmospheric and indoor environments. In large forest ecosystems, biogenic secondary organic aerosols (SOAs) constitute a dominant fraction of organic particulate matter in the atmosphere. The formation of SOAs starts from the emission of volatile organic...
- Subject:
- Physical chemistry, Chemistry, and Environmental science
- Creator:
- Liu, Yangdongling
- 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:15742 and etdadmin_upload_844595
-
- 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
-
- Description:
- Molecular self-assembly is a process in which molecules spontaneously form ordered aggregates, the process of which is important in the natural world, considering those ordered systems and complex architectures contained in a living cell. The goal of chemists is to design simple molecules or chemical systems that can undergo molecular...
- Keyword:
- self-assembly, host-guest chemistry, and homophilic recognition
- Subject:
- Chemistry
- Creator:
- gong, xirui
- 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:14747 and etdadmin_upload_675818
-
- Description:
- Formed through self-assembly of polynuclear node clusters and multitopic organic linkers, metal–organic frameworks (MOFs) are a class of three-dimensional crystalline materials. Due to their exceptional porosity, high surface areas, amenability to construction, chemical diversity, uniformly arrayed metal-containing nodes, and highly modular nature, MOFs are an ideal class of materials for...
- Keyword:
- Chemical Separation, Gas Storage and Delivery, Metal–Organic Frameworks, Heterogeneous Catalysis Mechanism, Porous Materials, and Degradation of Nerve Agent and Simulant
- Subject:
- Chemistry
- Creator:
- Liao, Yijun
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/01/2021
- Date Created:
- 2020-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:15116 and etdadmin_upload_743673
-
- Description:
- Understanding the photophysical processes of organic materials is important for utilizing them as functional photonic materials. Typical photophysical processes include intersystem crossing, charge transfer (CT), symmetry-breaking charge separation (SB-CS), singlet fission (SF), etc. There are serval factors that can lead to different photophysical processes, such as the molecular energy levels,...
- Subject:
- Physical chemistry and Chemistry
- Creator:
- Lin, Chenjian
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/16/2023
- Date Created:
- 2022-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_947331 and http://dissertations.umi.com/northwestern:16377
-
- Description:
- Industrial processes heavily rely on catalysts to control product selectivity and lower energy barriers required for chemical transformations. Catalysts are most commonly solid heterogeneous catalysts that facilitate separations from reaction mixtures and enhance recyclability. Heterogeneous catalysts used in industrial processes exhibit efficacious results, but in certain instances drawing structure-function relationships...
- Keyword:
- Polymerization, Oligomerization, Metal–Organic Frameworks, Structure-property relationships, and Heterogeneous catalysis
- Subject:
- Chemistry and Materials Science
- Creator:
- Goetjen, Timothy
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/16/2023
- Date Created:
- 2022-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_938937 and http://dissertations.umi.com/northwestern:16320
-
- Description:
- The invention of GdIII-based magnetic resonance imaging (MRI) probes substantially expanded the capability of MRI in visualizing details in tissue. Building upon the achievement of GdIII-based complexes, more ideal probes should feature contrast that is responsive to biomarkers, such as redox status and ion concentrations. The abnormality of these biomarkers...
- Keyword:
- Responsive probes, PARACEST, Paramagnetic NMR, MRI contrast agents, Inorganic Chemistry, and Bioinorganic Chemistry
- Subject:
- Chemistry
- Creator:
- Du, Kang
- 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:14394 and etdadmin_upload_615839
-
- Description:
- In the design of efficient adsorbents for the sequestration of toxic molecules and the separation of volatile organic compounds, two important criteria are: high porosity and high density of sorptive sites. The work in this thesis showcases how metal-organic frameworks (MOFs) can be used as porous adsorbent templates where many...
- Subject:
- Chemistry
- Creator:
- Audu, Cornelius Okatahi
- 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:14503 and etdadmin_upload_636835
-
- Description:
- The study of solid-state organic chromophores has been soaring in the last decade owing to their wide applications in organic photovoltaics. These organic chromophores can absorb light in the visible region and form free charge carriers with proper design in molecular structure and device fabrication. In solid state, chromophores are...
- Subject:
- Chemistry
- Creator:
- Chen, Su
- 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:15882 and etdadmin_upload_864439
-
- Description:
- The translation of proteins as effective intracellular drug candidates is limited by the challenge of cellular entry and their vulnerability to degradation. To advance their therapeutic potential, cell-impermeable proteins can be readily transformed into protein spherical nucleic acids (ProSNAs) or encapsulated into liposomal spherical nucleic acids (L-SNAs), structures defined by...
- Keyword:
- Intracellular Delivery, Enzyme, Spherical Nucleic Acid, Cancer Vaccine, Biologic, and Blood-Brain Barrier
- Subject:
- Chemistry
- Creator:
- Kusmierz, Caroline Danielle
- 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:15666 and etdadmin_upload_837502
-
- Description:
- Continuous and coordinated materials discovery efforts have amassed a wealth of knowledge concerning many general classes of materials. The number of known phases of all structure-types, however, is far less than number of possible materials dictated by the elements on the periodic table. Recently, with improved computational abilities and well-developed...
- Keyword:
- Materials Discovery, Solid-State Chemistry, Crystallography, and Synthesis
- Subject:
- Chemistry and Materials Science
- Creator:
- Flynn, Steven Matthew
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 04/15/2021
- Date Created:
- 2020-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:15456 and etdadmin_upload_794308
-
- Description:
- The discovery of abundant reserves of shale gas over this past decade has reshaped the world’s energy landscape. It has renewed interests in the activation and conversion of methane as well as other light alkanes. While the oxidative coupling of methane (OCM) and oxidative dehydrogenation (ODH) of ethane and propane...
- Keyword:
- methane, ethane, sulfur, ethylene, and mechanism
- Subject:
- Chemistry
- Creator:
- LIU, SHANFU
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/01/2021
- Date Created:
- 2020-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:15196 and etdadmin_upload_756397
-
- Description:
- Proteins are a class of nanoscale building block with remarkable chemical complexity and sophistication: their diverse functions, shapes and symmetry, and atomically monodisperse structures far surpass the range of nanoparticles that can be accessed synthetically. The chemical topology of proteins that drive their assembly into higher order materials are central...
- Subject:
- Chemistry
- Creator:
- McMillan, Janet
- 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:14624 and etdadmin_upload_662062
-
- Description:
- Peptides consists of a series of amino acids connected via an amide type of covalent chemical bond. A diverse field of applications such as biosensors,2 catalysis,4 and biomedicine6 include the oligomeric forms of peptides due to their genuine features comparing to other biomacromolecules. Particularly, peptides in the field of biomedical...
- Subject:
- Chemistry
- Creator:
- Choi, Wonmin
- 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:15787 and etdadmin_upload_849083
-
- Description:
- Chemical modifications of oligonucleotides (ONs) have advanced these molecules towards clinical approvals. On their own, native ONs have poor pharmacokinetic properties, such as rapid degradation by nucleases and poor cell uptake, which limit their potential therapeutic applications. Chemical modifications of ONs can increase their stability, alter their interactions with cells,...
- Subject:
- Chemistry
- Creator:
- Skakuj, Kacper
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/01/2021
- Date Created:
- 2020-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_769294 and http://dissertations.umi.com/northwestern:15317
-
- Description:
- Despite the increasing interest in biogenic secondary organic aerosols (SOAs), their role in the climate system remains the greatest source of uncertainty in global models. Cloud formation, critical for the net cooling effect provided by cloud cover, is dependent on the abundance of SOA particles and their ability to activate...
- Subject:
- Physical chemistry, Atmospheric chemistry, and Chemistry
- Creator:
- Bellcross, Aleia
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 08/23/2023
- Date Created:
- 2023-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:16628 and etdadmin_upload_993914
-
- Description:
- The development of new catalytic methodologies for the precision synthesis of carbon-carbon bonds is central to the advancement of synthetic organic chemistry. Significant focuses of these efforts are made on the enantio- and diastereoselective synthesis of carbon frameworks, especially as chemists and biologists become more aware of the impact of...
- Keyword:
- cooperative, tetrahydropyranoindole, catalysis, chemoenzymatic, chiral phosphoric acid, and lactone
- Subject:
- Organic chemistry and Chemistry
- Creator:
- Maskeri, Mark Andrew
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/01/2021
- Date Created:
- 2020-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_749341 and http://dissertations.umi.com/northwestern:15159
-
- Description:
- Synthesis opens the pathway to examine a plethora of complex structures. Whether the target is a naturally occurring compound or a proposed molecule never observed before, synthetic routes can be developed to help understand a variety of properties that the molecule can contain. Synthetic efforts have helped elucidate the absolute...
- Subject:
- Chemistry
- Creator:
- Vega, Marvin Marcus
- 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:14544 and etdadmin_upload_641529
-
- Description:
- As the interest in rational synthesis for solid-state materials accelerates, there is an urgent need to understand the design principles concealed within these reactions. In situ material synthesis provides such an avenue to not only uncover these assembling rules, but also for finding new materials even in seemingly familiar phase...
- Keyword:
- Material Synthesis, Heteroanionic, In Situ, X-ray Diffraction, Solid-State Synthesis, and Rational Design
- Subject:
- Chemistry and Materials Science
- Creator:
- McClain, Rebecca
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 06/22/2022
- Date Created:
- 2021-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:15949 and etdadmin_upload_880527
-
- 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
-
- Description:
- The use of light to understand detailed electronic structure and chemical properties of a molecule through light-matter interaction is fundamentally essential to design and analyze any chemical system. Over the past decades, rapid developments on optics and laser techniques improved the detection efficiency of multiphoton processes with more detailed chemical...
- Keyword:
- Single-molecule Spectroscopy, Two-photon Absorption, Raman Spectroscopy, Electrochemistry, Spectroelectrochemistry, and Quantum Optics
- Subject:
- Chemistry
- Creator:
- Kang, Gyeongwon
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 10/07/2021
- Date Created:
- 2021-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_828620 and http://dissertations.umi.com/northwestern:15617
-
- Description:
- Metalloenzymes catalyze remarkable reactions in Nature using transition metal ions. Common earth-abundant metals like copper, iron, zinc, and magnesium catalyze reactions that are the basis of life. These metal sites lend their chemistries to facilitate these reactions, making studying the structure and properties important in understanding the enzymes' abilities and...
- Keyword:
- Metalloenzymes, Computations, Biochemistry, Physical Chemistry, Inorganic Chemistry, and Paramagnetic Spectroscopy
- Subject:
- Chemistry
- Creator:
- Jodts, Richard Jacob
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 08/23/2023
- Date Created:
- 2023-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:16659 and etdadmin_upload_1001514
-
- Description:
- This thesis presents results on photophysics and spin dynamics of photoactive organic molecules that possess one unpaired electron spin in the ground state and two or three unpaired spins upon photoexcitation. The excited state dynamics of the systems were studied using transient optical absorption spectroscopies and non-Boltzmann population on the...
- Subject:
- Physical chemistry and Chemistry
- Creator:
- Mao, Haochuan
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/16/2023
- Date Created:
- 2022-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_946833 and http://dissertations.umi.com/northwestern:16364
-
- Description:
- This dissertation seeks to explore how physical forces, notably through the use of magnetic nanoparticles and applied fields, can influence the structural outcomes of colloidal crystals engineered with DNA. Chapter 1 describes how both DNA and magnetic fields can direct the assembly of nanoparticles into periodic and sometimes crystalline materials....
- Keyword:
- colloidal crystal engineering with DNA, iron oxide nanoparticles, and magnetic field assembly
- Subject:
- Chemistry
- Creator:
- Urbach, Zachary James
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 04/15/2021
- Date Created:
- 2020-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_790857 and http://dissertations.umi.com/northwestern:15441
-
- Description:
- Proteins are known to have diverse biomedical functions and excellent catalytic performance; however, they are also fragile outside living cells, challenging their use in industrial applications. Metal-organic frameworks (MOFs) are highly porous crystalline materials that consist of metal cluster nodes and organic linkers. With their rigid structures, MOFs can effectively...
- Keyword:
- Drug Delivery, Protein Stabilization, and Biocatalysis
- Subject:
- Chemistry
- Creator:
- Chen, Yijing
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 10/07/2021
- Date Created:
- 2021-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_835507 and http://dissertations.umi.com/northwestern:15658
-
- Description:
- Noble metal nanoparticles (NPs) have shown promise as imaging agents, drug delivery platforms, and plasmonic sensors. Anisotropic gold NPs, such as gold nanostars, have particularly received attention due to their shape-dependent optical and spectral properties. With their 3D anisotropic structure with branches protruding into different directions and high surface areas,...
- Keyword:
- Nanoparticle, Nanostar, Electron Tomography, and DIC Microscopy
- Subject:
- Chemistry
- Creator:
- Choo, Priscilla
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 10/07/2021
- Date Created:
- 2021-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_837616 and http://dissertations.umi.com/northwestern:15668
-
- Description:
- Recent progress in the field of nanomaterials has enabled significant advances in optoelectronic devices such as solar cells, light-emitting diodes, photocatalysts, and sensors. Nanoparticles feature superior optical and electronic properties that arise from quantum confinement and therefore cannot be attained used bulk materials. However, further developments in the field of...
- Keyword:
- ultrafast spectroscopy, transient absorption, nanoparticles, two-dimensional, nanoplatelets, and electronic processes
- Subject:
- Chemistry
- Creator:
- Brumberg, Alexandra
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 10/07/2021
- Date Created:
- 2021-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_845490 and http://dissertations.umi.com/northwestern:15773
-
- Description:
- Metallic conductivity and broken inversion symmetry were long thought to be contraindicated properties, under the assumption that long-range Coulombic interactions (screened by free charge carriers) were necessary for coordinated polar displacements. Within the past decade, the discovery of polar metals has prompted a rethinking of the relationship between metallicity and...
- Keyword:
- first principles, contraindicated, polar, phase, ferroelectric, and metal
- Subject:
- Physics, Chemistry, and Materials Science
- Creator:
- Hickox-Young, Daniel Timothy
- 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:15762 and etdadmin_upload_845260
-
- Description:
- Two-dimensional (2D) covalent organic frameworks (COFs) are a class of crystalline polymer networks that polymerize and crystallize into layered structures, characterized by their atomically precise structure, permanent porosity and high modularity. Imine-linked COFs are one of the most important and promising classes of macromolecular sheets, which form by the condensation...
- Keyword:
- Covalent organic frameworks
- Subject:
- Polymer chemistry and Chemistry
- Creator:
- Ji, Woojung
- 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:15494 and etdadmin_upload_799668
-
- Description:
- This thesis describes the synthesis and photophysical characterization of low-dimensionalmaterials—including thin-film semiconductors, colloidal quantum dots, and molecules—with the broader motivation of integrating them into mixed-dimensional heterostructures with novel responses to external stimuli. Due to their high surface area to volume ratio and incomplete dielectric screening, mixed-dimensional heterostructures have high sensitivity...
- Subject:
- Physics, Chemistry, and Materials Science
- Creator:
- Olding, Jack Nicklaus
- 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:15691 and etdadmin_upload_840718
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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
-
- Description:
- While Li-ion batteries are currently the preferred energy storage technology, multivalent alternatives such as Mg should be considered. Magnesium metal has a high volumetric capacity and has been shown to cycle with no dendrite formation. However, the highly charged Mg2+ ion cannot easily diffuse into the oxide cathodes favored in...
- Keyword:
- Solid State Chemistry, Multivalent Batteries, Magnesium Cathodes, and Hydrothermal Synthesis
- Subject:
- Inorganic chemistry and Chemistry
- Creator:
- Wustrow, Allison
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2019-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_662066 and http://dissertations.umi.com/northwestern:14625
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- Description:
- Nanoparticles (NPs) are emerging as attractive drug carriers in therapeutic and diagnostic applications. The physiochemical properties of NPs, such as particle size, shape, and surface chemistry, play important roles in the functions of engineered nanoconstructs−NP cores with surface ligands. Recent work has screened these properties by monitoring cellular uptake and/or...
- Subject:
- Chemistry
- Creator:
- Liu, Tingting
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 10/07/2021
- Date Created:
- 2021-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_844987 and http://dissertations.umi.com/northwestern:15753
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- Description:
- The building blocks of life are proteins. These incredible nanostructures are responsible for forming the diverse infrastructure of living systems and for performing countless biological functions. In Nature, these materials and systems achieve structural complexity and function through highly regulated and controlled assembly of protein building blocks, driven by specific...
- Keyword:
- Hierarchical, Supramolecular , Proteins, and Self-assembly
- Subject:
- Nanotechnology and Chemistry
- Creator:
- Hayes, Oliver George
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 10/07/2021
- Date Created:
- 2021-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_835884 and http://dissertations.umi.com/northwestern:15660
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- Description:
- Recent progress in semiconductor synthesis and photophysics has revealed a host of new materials with exciting properties for applications in optoelectronic devices such as sensors, photovoltaics, solid state lighting, and more. One of the most significant recent additions to the field is the class of hybrid and inorganic materials that...
- Subject:
- Physical chemistry, Chemistry, and Materials Science
- Creator:
- Cuthriell, Shelby A
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 08/23/2023
- Date Created:
- 2023-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:16650 and etdadmin_upload_1000360
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- Description:
- Realizing electromagnetic metamaterials which operate in the optical regime requires creating precise arrangements of sub-100 nm building blocks. As such, fabricating these materials using conventional lithographic methods is extremely costly. On the other hand, bottom-up assembly of nanoparticles into crystalline superlattices offers opportunities to explore the scalable fabrication of 2-...
- Subject:
- Chemistry
- Creator:
- Zheng, Cindy Yizhe
- 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:15883 and etdadmin_upload_864457
-
- Description:
- Amyloid beta oligomers (AβOs) are a key instigator of neurodegeneration in Alzheimer’s disease (AD). The work presented in this thesis includes three disease-modifying approaches to disrupt pathological AβO-related mechanisms in AD: (1) inhibiting AβO buildup, (2) blocking AβO-induced tau phosphorylation, and (3) neutralizing AβOs. These three approaches were tested in...
- Keyword:
- Amyloid beta oligomer
- Subject:
- Chemistry
- Creator:
- Johnson, Elizabeth Anne
- 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:16421 and etdadmin_upload_962600
-
- Description:
- Gold nanoparticles (AuNPs) display unique characteristics compared to their macro-counterparts that are dependent on shape, size, and attached surface molecules. Methods have been developed to precisely control both size and shape of AuNPs for specific applications. The biocompatibility, plasmonic properties, and ease of functionalization with thiolated molecules, make gold nanoparticles...
- Keyword:
- gold nanopaticles, therapeutics, DNA, cancer vaccine, and plasmonics
- Subject:
- Nanotechnology, Chemistry, and Biology
- Creator:
- Coughlin, Emma
- 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:15532 and etdadmin_upload_815702
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- Description:
- Functional electronic materials have transformed modern society toward a highly digitized and interconnected global community. The ever-growing demand for electronic devices with superior functionality poses a great challenge to the state-of-the-art field-effect transistors owing to the limited charge density afforded by silicon. Materials scientists and chemists have been working closely...
- Keyword:
- Bayesian optimization, Gaussian processes, deep neural network, computational materials science, and metal-insulator transition
- Subject:
- Chemistry
- Creator:
- Wang, Yiqun
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 06/28/2021
- Date Created:
- 2021-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_815597 and http://dissertations.umi.com/northwestern:15531
-
- Description:
- Biomedical imaging is an essential part of medicine that enables the non-invasive observation of biological phenomena. This, in turn, allows for more accurate and earlier diagnoses, monitoring of therapies, and even fundamental research into biological processes. Molecular imaging, a fast-growing subdiscipline of biomedical imaging, seeks to image biochemical processes at...
- Keyword:
- Theranostic, Gadolinium, Bioresponsive, Chemotherapy, MRI, and Platinum
- Subject:
- Inorganic chemistry and Chemistry
- Creator:
- Adams, Casey
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 06/22/2022
- Date Created:
- 2021-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_864932 and http://dissertations.umi.com/northwestern:15884
-
- Description:
- Amyloid beta oligomers (AβOs) are a key instigator of neurodegeneration in Alzheimer’s disease (AD). The work presented in this thesis includes three disease-modifying approaches to disrupt pathological AβO-related mechanisms in AD: (1) inhibiting AβO buildup, (2) blocking AβO-induced tau phosphorylation, and (3) neutralizing AβOs. These three approaches were tested in...
- Keyword:
- Amyloid beta oligomer
- Subject:
- Chemistry
- Creator:
- Johnson, Elizabeth Anne
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 03/24/2023
- Date Created:
- 2023-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:16421 and etdadmin_upload_962600
-
- Description:
- The construction of new C–C bonds remains a central facet of organic chemistry due to its critical role in the synthesis of pharmaceutical compounds and organic materials. Mild and selective methodologies are often required for efficient formation of these bonds in natural product total synthesis, medicinal chemistry campaigns, and more....
- Keyword:
- carbene, photochemistry, catalysis, ketone, photoredox, and NHC
- Subject:
- Organic chemistry and Chemistry
- Creator:
- Bay, Anna Victoria
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 09/22/2022
- Date Created:
- 2022-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_929370 and http://dissertations.umi.com/northwestern:16269
-
- Description:
- Understanding the mechanisms associated with chemical catalysis is vital for not only the rational improvement of their capabilities, but also for the advancement of the fundamental knowledge affiliated with the systems in question. These new insights can help predict new reactivities towards more challenging substrates which will allow for easier...
- Keyword:
- Catalysis, Lanthanides, Borylation, and Chemodivergent
- Subject:
- Chemistry
- Creator:
- Rothbaum , Jacob Olasov
- 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:16303 and etdadmin_upload_936040