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Articles 1 - 5 of 5
Full-Text Articles in Chemistry
Impact Of Chemical Doping On The Thermoelectric Charge Transport Of Organic Semiconductors, Connor J. Boyle
Impact Of Chemical Doping On The Thermoelectric Charge Transport Of Organic Semiconductors, Connor J. Boyle
Doctoral Dissertations
The thermoelectric properties of organic semiconductors allow them to directly convert heat into electricity without the use of moving parts and to directly convert electricity into heat without the use of working fluids. These properties offer opportunities for the generation of electricity from non-conventional or renewable sources of heat and for refrigeration without the risk of leaking harmful working fluids at any length scale down to the nanoscale. Since organic materials are lightweight, flexible, and made from abundant resources, these opportunities could one day become affordable for widespread use and could be expanded to include specialized and otherwise difficult to …
Study Of Self-Assembly And Stimuli Responsive Behavior In Polymeric And Dendritic Amphiphiles, Poornima Rangadurai
Study Of Self-Assembly And Stimuli Responsive Behavior In Polymeric And Dendritic Amphiphiles, Poornima Rangadurai
Doctoral Dissertations
Natural processes are intricately detailed and able to convert molecular-level events into macroscopic or visually observable properties. This is made possible through multiple interactions at the molecular level, signaling due to covalent and non-covalent interactions, and supramolecular networks that rely on dynamic, non-equilibrium structures. Detailing processes in this manner is the current quest for material science research and designing materials for this purpose is usually via a key process known as self-assembly. Self-assembly is a process in which a material with varied components organizes itself into a particular pattern due to various specific inter and intra molecular interactions. By understanding …
Formulation And Characterization Of Lipogels As A Tunable Delivery Scaffold, Celia Homyak
Formulation And Characterization Of Lipogels As A Tunable Delivery Scaffold, Celia Homyak
Doctoral Dissertations
Nanomedicines within the clinic commonly utilize lipid-based scaffolds due to their aqueous assembly and non-covalent dual-guest loading capabilities. Nevertheless, poor stability in vivo and premature guest release remains a challenge with these systems. Polymeric nanomaterials are a popular alternative due to their good stability in vivo with controllable guest release. A caveat to polymeric scaffolds though, is the excess synthetic effort involved for non-covalent dual-drug encapsulation. Benefit lies in harnessing advantages of lipid and polymeric materials via lipid-polymer hybrid scaffold. Such materials have promise due to their dual-encapsulation and dual-stimuli-sensitive characteristics. The need to better understand these materials led us …
Design And Synthesis Of Stimuli-Responsive Polymeric Nanogels Towards Therapeutic Translation, Mallory R. Gordon
Design And Synthesis Of Stimuli-Responsive Polymeric Nanogels Towards Therapeutic Translation, Mallory R. Gordon
Doctoral Dissertations
In the application of delivery of therapeutics, nanostructures of various composition have been employed due to their capacity to act as a host for lipophilic payloads. Advances in the synthetic preparation, size, morphology, and chemical or physical characteristics of polymers have impacted their development and versatility. A detailed understanding of polymeric nanoparticle host-guest properties is crucial to their practical translation to specific delivery applications. Further, these features must be highly tailorable to overcome biological barriers, stably encapsulate their therapeutic contexts, and exhibit payload release selectively in the target environment. In this dissertation, we aim to rationally design polymeric nano-scale assemblies …
Light-Harvesting And Light-Responsive Materials For Optoelectronic And Biological Applications, Youngju Bae
Light-Harvesting And Light-Responsive Materials For Optoelectronic And Biological Applications, Youngju Bae
Doctoral Dissertations
In photodynamic therapy, several critical standards are required of photosensitizers including high singlet oxygen quantum yield, biocompatibility in dark, and long term photochemical stability. In addition, current PDT systems lack active targeting strategies to tumor cells, and instead mainly rely on the natural distribution of PS in the body following injection and application of near-infrared light treatment in the tumor region. This thesis describes a series of BODIPY-based molecules that were designed, synthesized and studied as photosensitizers with high singlet oxygen generation capacity through utilizing the heavy atom effect. Additionally, aqueous solubility and active targeting capability were introduced by photosensitizer …