Index Catalog // Arch : Northwestern University Institutional Repository

Driving Symmetry-Breaking Charge-Separation through Self-Assembly of Organic Chromophores

Description:: Organic chromophores show great promise for energy and optoelectronic devices, due to their synthetic tunability and low production costs. In order to achieve this potential, their fundamental photophysical processes must be better understood. It has long been documented that chromophore packing at the molecular level has dramatic effect on electronic...
Keyword:: Transient Absorption, X-ray scattering, Symmetry-Breaking Charge-Separation, Photoactive nanoparticle, and Self-Assembly
Subject:: Chemistry
Creator:: Powers Riggs, Natalia Elise
Owner:: Scholarly Digital Publishing
Language:: en
Date Uploaded:: 02/01/2021
Date Created:: 2020-01-01
Resource Type:: Dissertation
Alternate Identifier:: etdadmin_upload_772355 and http://dissertations.umi.com/northwestern:15337

Hierarchical Assembly by Peptide Amphiphiles and Their Use in Cartilage Repair

Description:: In nature, materials with complex architectures are formed through hierarchical self-assembly. Therefore, the study and design of hierarchically assembling materials is important in producing materials that mimic biological structures and is a key challenge in biomaterials science and engineering. In articular cartilage, hierarchical assembly of extracellular matrix (ECM) components provides...
Keyword:: Supramolecular Chemistry, Peptide Amphiphile, Cartilage Engineering, Biomaterials, Self-Assembly, and Hierarchical Assembly
Subject:: Biomedical engineering
Creator:: Lewis, Jacob Alexander
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:15237 and etdadmin_upload_763197

Control of Hierarchical Order and Development of Stimuli-Responsive Self-Assembled Materials Across Multiple Length Scales

Description:: One of the grand challenges in materials chemistry and nanochemistry is the development of functional materials through ordered, hierarchical structures using synthetic building blocks. Nature has done this through evolution of molecular components such as nucleic acids, saccharides, lipids, amino acids, and inorganic crystals. The precise spatial positioning of these...
Keyword:: Hierarchical Order, Responsive Materials, Peptide Amphiphiles, Self-Assembly, Materials chemistry, and Nanochemistry
Subject:: Chemistry and Materials Science
Creator:: Chin, Stacey Megan
Owner:: Scholarly Digital Publishing
Language:: en
Date Uploaded:: 02/12/2020
Date Created:: 2019-01-01
Resource Type:: Dissertation
Alternate Identifier:: etdadmin_upload_639807 and http://dissertations.umi.com/northwestern:14525

Expanding the Properties and Utility of DNA-Engineered Nanoparticle Superlattices through Monodispersity, Metallization, and Interfacing with Electronic Circuitry

Description:: Colloidal crystal engineering with DNA offers new opportunities for materials scientists to build and program the structures of superlattices beyond what can be accomplished in Nature with atomic crystal lattices. Thus far, such materials primarily have been studied for their optical properties due to the insulating nature of the DNA...
Keyword:: Nanoparticles, Self-Assembly, Surface Modification, and Colloidal Crystal Engineering
Subject:: Nanotechnology, Nanoscience, and Materials Science
Creator:: Oh, Taegon
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:14533 and etdadmin_upload_640128

Tuning Non-Covalent Interactions to Optimize Supramolecular Biomaterials

Description:: Built from non-covalent interactions, supramolecular biomaterials are highly dynamic and tunable, and recent work has shown that they are uniquely capable of mimicking functional biological structures. In this work, supramolecular biomaterials built from self-assembling peptide amphiphiles (PA) were investigated with the goal of precisely tuning their cohesive interactions to optimize...
Keyword:: Bone Regeneration, Biomaterials, Self-Assembly, and Supramolecular Biomaterials
Subject:: Bioengineering
Creator:: Chen, Charlotte Hui
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:14828 and etdadmin_upload_686118

Single Crystal Engineering with DNA

Description:: The work of this dissertation seeks to enhance the understanding of DNA-driven nanoparticle assembly and introduce kinetic routes to control mesoscale crystal habit and size. Chapter 1 describes the state of the art in the field of nanoparticle assembly and, specifically, DNA- mediated nanoparticle assembly, where the concept of a...
Keyword:: Single Crystal, Nanoparticle, Nucleation and Growth, Crystallization, , DNA, and Self-Assembly
Subject:: Chemistry
Creator:: So Young Eileen Seo
Owner:: Scholarly Digital Publishing
Date Uploaded:: 11/25/2019
Date Modified:: 11/25/2019
Date Created:: 2018-01-01
Resource Type:: Dissertation

Patterning and Characterization of Reconfigurable Nanoparticle Assemblies

Description:: The assembly of nanoscale building blocks into larger ensembles with well-defined architecture has the potential to create entirely new classes of designer photonic and plasmonic metamaterials with unique properties not found in nature. Electromagnetic metasurfaces, or 2D metamaterials, operating at optical wavelengths are of particular interest due to ease of...
Keyword:: Nanotechnology, Nanoparticles, Nanopatterning, Directed Assembly, Self-Assembly, and Electron Microscopy
Subject:: Materials Science and Engineering
Creator:: BENJAMIN MYERS
Owner:: Scholarly Digital Publishing
Date Uploaded:: 10/08/2019
Date Modified:: 10/08/2019
Date Created:: 2018-01-01
Resource Type:: Dissertation

Probing the Relationship between Structure and Function of Self-Assembling Conjugated Molecules

Description:: This thesis discusses the synthesis, self-assembly, and conductivity properties of novel oligothiophene derivatives with an emphasis on how molecular structure effects the assembly. In order to facilitate self-assembly in conjugated molecules, specific non-covenant forces were included into the molecular design of several derivatives. First, an amphiphilic oligothiophene derivative consisting of...
Keyword:: organogel, oligothiophene, conductivity, Self-Assembly, and hydrogel
Subject:: Chemistry
Creator:: David Alfred Stone
Owner:: Scholarly Digital Publishing
Date Uploaded:: 10/02/2018
Date Modified:: 10/02/2018
Date Created:: 2008-12-05
Resource Type:: Dissertation

Effects of Patterning and Spatial Confinement on Order in Self-Assembling Systems

Description:: Supramolecular chemistry has proven to be an effective strategy for bottom-up fabrication of monodisperse, functional nanostructures. However, most applications require these nanostructures to be spatially or orientationally ordered. This thesis investigates patterning and spatial confinement as tools for controlling order in self-assembling systems. We first look to improve the ordering...
Keyword:: Alignment, Order, Lithography, and Self-Assembly
Subject:: Materials Science and Engineering
Creator:: Albert M Hung
Owner:: Scholarly Digital Publishing
Date Uploaded:: 06/27/2018
Date Modified:: 06/27/2018
Date Created:: 2007-05-11
Resource Type:: Dissertation

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Driving Symmetry-Breaking Charge-Separation through Self-Assembly of Organic Chromophores

Hierarchical Assembly by Peptide Amphiphiles and Their Use in Cartilage Repair

Control of Hierarchical Order and Development of Stimuli-Responsive Self-Assembled Materials Across Multiple Length Scales

Expanding the Properties and Utility of DNA-Engineered Nanoparticle Superlattices through Monodispersity, Metallization, and Interfacing with Electronic Circuitry

Tuning Non-Covalent Interactions to Optimize Supramolecular Biomaterials

Single Crystal Engineering with DNA

Patterning and Characterization of Reconfigurable Nanoparticle Assemblies

Probing the Relationship between Structure and Function of Self-Assembling Conjugated Molecules

Effects of Patterning and Spatial Confinement on Order in Self-Assembling Systems

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