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- 02. My Life with Polymer Science (2)
- 19. How Pearls are made (2)
- 21. From the Congress in Vienna (Metternich) to the Pacific Polymer Federation (2)
- 22. Chirality and Handedness (2)
- Apoptosis (2)
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- 18. Degradadation, Aging and Stabilization (1)
- 20. Solid State Chemical Reactions and Polymerizations (1)
- All polymer solar cells (1)
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- Anhydrous Proton Transport (1)
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Articles 1 - 21 of 21
Full-Text Articles in Entire DC Network
Crystallization And Polymerization, Otto Vogl, Frank T. Traceski, Eric G. Vogl
Crystallization And Polymerization, Otto Vogl, Frank T. Traceski, Eric G. Vogl
Otto Vogl
No abstract provided.
Breaking The Barriers Of All-Polymer Solar Cells: Solving Electron Transporter And Morphology Problems, Nagarjuna Gavvalapalli
Breaking The Barriers Of All-Polymer Solar Cells: Solving Electron Transporter And Morphology Problems, Nagarjuna Gavvalapalli
Open Access Dissertations
All-polymer solar cells (APSC) are a class of organic solar cells in which hole and electron transporting phases are made of conjugated polymers. Unlike polymer/fullerene solar cell, photoactive material of APSC can be designed to have hole and electron transporting polymers with complementary absorption range and proper frontier energy level offset. However, the highest reported PCE of APSC is 5 times less than that of polymer/fullerene solar cell. The low PCE of APSC is mainly due to: i) low charge separation efficiency; and ii) lack of optimal morphology to facilitate charge transfer and transport; and iii) lack of control over …
Allosteric Regulation Of Caspase-6 Proteolytic Activity, Elih M. Velazquez-Delgado
Allosteric Regulation Of Caspase-6 Proteolytic Activity, Elih M. Velazquez-Delgado
Open Access Dissertations
Caspases are cysteine proteases best known for their controlling roles in apoptosis and inflammation. Caspase-6 has recently been shown to play a key role in the cleavage of neurodegenerative substrates that causes Huntington and Alzheimer's Disease, heightening interest in caspase-6 and making it a drug target. All thirteen human caspases have related specificities for binding and cleaving substrate, so achieving caspase-specific regulation at the active site has been extremely challenging if not impossible. We have determined the structures of four unliganded forms of caspase-6, which attain a novel helical structure not observed in any other caspases. In this conformation, rotation …
Studies In The Atomic Spectrometric Determination Of Selenium, Mercury, And Rare Earth Elements, Lindsay Rhae Harris
Studies In The Atomic Spectrometric Determination Of Selenium, Mercury, And Rare Earth Elements, Lindsay Rhae Harris
Open Access Dissertations
The field of analytical chemistry is very important to today's society as more and more regulations and legislations emerge regarding trace elements in food, consumer products, medicines, and the environment. Like many areas of science, the current goals of trace elemental measurements and speciation are to increase knowledge on the subject and to improve upon current techniques by enhancing the figures of merit, such as accuracy and reproducibility, meanwhile balancing with the cost and time of analysis.
The topics covered in this work were investigated primarily through the use of inductively coupled plasma mass spectrometry (ICP-MS) and inductively coupled plasma …
Determination Of Metallic Constituents In Environmental And Biological Materials, Monique Erica Johnson
Determination Of Metallic Constituents In Environmental And Biological Materials, Monique Erica Johnson
Open Access Dissertations
Studies of the interaction of the relevant metal, metalloid or nanoparticulate species with biological systems are underpinned by the provision of reliable information about chemical composition of the relevant materials. Often, no methods of chemical analysis are available. The work described in this dissertation centers on developing methods to help with studies for a variety of analytes and samples. A method was developed for the determination of 11 trace elements (As, Cd, Co, Cr, Cu, Fe, Mg, Mn, Pb, Ti, and Zn) in human breast milk and infant formulas by inductively coupled plasma optical emission spectrometry (ICP-OES) following microwave-assisted digestion. …
Determination And Speciation Of Arsenic In Environmental And Biological Samples, Tiffany Berg
Determination And Speciation Of Arsenic In Environmental And Biological Samples, Tiffany Berg
Open Access Dissertations
A method was developed for the determination of total arsenic in rice grain by microwave-assisted digestion inductively coupled plasma mass spectrometry. Standard calibration solutions were matrix-matched with respect to acid concentration and carbon content post-digest. The importance of eliminating the drying step during sample preparation procedures was investigated. The method was validated with spikes containing standard arsenate solutions into the rice matrix, and with certified reference material SRM1568a (rice flour) from NIST. The method was successfully applied to a commercially available rice sample. Four arsenic species [arsenate (As(V)), arsenite (As(III)), dimethylarsinic acid (DMA) and monomethylarsonic acid (MMA)] were extracted from …
Pictures From My Life With Polymer Science: Album 12, Otto Vogl
Pictures From My Life With Polymer Science: Album 12, Otto Vogl
Otto Vogl
No abstract provided.
Solid State Chemical Reactions And Polymerizations: The Initial Synthesis Of Dna?, Otto Vogl, Frank T. Traceski
Solid State Chemical Reactions And Polymerizations: The Initial Synthesis Of Dna?, Otto Vogl, Frank T. Traceski
Otto Vogl
A Proposal for Covering individual Macromolecules with Macromolecules including a Realistic Chiral Synthesis of Nucleic Acids.
Regulation Of Caspase-9 By Natural And Synthetic Inhibitors, Kristen L. Huber
Regulation Of Caspase-9 By Natural And Synthetic Inhibitors, Kristen L. Huber
Open Access Dissertations
Tight regulation of caspase-9, a key initiator of apoptosis, is required to uphold cellular homeostasis. Although it is controlled on a multifactorial level, misregulation of this process does occur, which is a characteristic of a variety of diseases from ischemic injury to cancer. Therefore it remains important to gain a detailed understanding of the mechanisms behind native caspase-9 regulatory pathways and harness these mechanisms for therapeutic purposes.
Based on known mechanisms, such as the unique inhibitory complex of caspase-9 and XIAP-BIR3, development of synthetic regulators can be envisioned, while other mechanisms such as zinc-mediated inhibition and CARD activation of caspse-9 …
Engineering Surface Functionality Of Gold Nanoparticles For Therapeutic Applications, Chaekyu Kim
Engineering Surface Functionality Of Gold Nanoparticles For Therapeutic Applications, Chaekyu Kim
Open Access Dissertations
Over the past few decades, tremendous efforts have been made to develop nanomaterials for biotechnological applications such as therapeutics. Understanding and engineering interfaces between biomacromolecules and nanomaterials is a key to the creation of successful therapeutic systems. My research has been oriented toward developing therapeutic systems using gold nanoparticles (AuNPs) incorporating material science, organic synthesis, and biology. For this purpose, mixed monolayer protected AuNPs (~2 nm core size) with various functional groups have been employed for triggering therapeutic effects. Several strategies have been accomplished using anticancer drugs that non-covalently and covalently incorporate onto AuNPs as a drug delivery carrier. Alternatively, …
Functional Polymers For Anhydrous Proton Transport, Nagamani Chikkannagari
Functional Polymers For Anhydrous Proton Transport, Nagamani Chikkannagari
Open Access Dissertations
Anhydrous proton conducting polymers are highly sought after for applications in high temperature polymer electrolyte membrane fuel cells (PEMFCs). N-heterocycles (eg. imidazole, triazole, and benzimidazole), owing to their amphoteric nature, have been widely studied to develop efficient anhydrous proton transporting polymers. The proton conductivity of N-heterocyclic polymers is influenced by several factors and the design and development of polymers with a delicate balance among various synergistic and competing factors to provide appreciable proton conductivities has been a challenging task. In this thesis, the proton transport (PT) characteristics of polymers functionalized with two diverse classes of functional groups - N-heterocycles and …
Organic Materials As Templates For The Formation Of Mesoporous Inorganic Materials And Ordered Inorganic Nanocomposites, Christopher Ryan Ziegler
Organic Materials As Templates For The Formation Of Mesoporous Inorganic Materials And Ordered Inorganic Nanocomposites, Christopher Ryan Ziegler
Open Access Dissertations
Hierarchically structured inorganic materials are everywhere in nature. From unicellular aquatic algae such as diatoms to the bones and/or cartilage that comprise the skeletal systems of vertebrates. Complex mechanisms involving site-specific chemistries and precision kinetics are responsible for the formation of such structures. In the synthetic realm, reproduction of even the most basic hierarchical structure effortlessly produced in nature is difficult. However, through the utilization of self-assembling structures or "templates", such as polymers or amphiphilic surfactants, combined with some favorable interaction between a chosen inorganic, the potential exists to imprint an inorganic material with a morphology dictated via synthetic molecular …
Design Of Hybrid Conjugated Polymer Materials: 1) Novel Inorganic/Organic Hybrid Semiconductors And 2) Surface Modification Via Grafting Approaches, Joseph J. Peterson
Design Of Hybrid Conjugated Polymer Materials: 1) Novel Inorganic/Organic Hybrid Semiconductors And 2) Surface Modification Via Grafting Approaches, Joseph J. Peterson
Open Access Dissertations
The research presented in this dissertation focuses on the design and synthesis of novel hybrid conjugated polymer materials using two different approaches: 1) inorganic/organic hybrid semiconductors through the incorporation of carboranes into the polymer structure and 2) the modification of surfaces with conjugated polymers via grafting approaches. Hybrid conjugated polymeric materials, which are materials or systems in which conjugated polymers are chemically integrated with non-traditional structures or surfaces, have the potential to harness useful properties from both components of the material to help overcome hurdles in their practical realization in polymer-based devices. This work is centered around the synthetic challenges …
Pictures From My Life With Polymer Science: Album 11, Otto Vogl
Pictures From My Life With Polymer Science: Album 11, Otto Vogl
Otto Vogl
No abstract provided.
Synthesis Of Monomers For New Conjugated Polymers, Kedar Girish Jadhav
Synthesis Of Monomers For New Conjugated Polymers, Kedar Girish Jadhav
Masters Theses 1911 - February 2014
ABSTRACT
SYNTHESIS OF MONOMERS FOR NEW CONJUGATED POLYMERS
This dissertation addresses the problem of synthesis of different monomers for donor and acceptor polymers in photovoltaic applications. In general, functionalization of conjugated polymers and understanding of molecular packing of electron donors and electron acceptors are very important to produce efficient solar cells. As a result, it is important to design and synthesize novel monomers which will require making new π-conjugated donors and acceptors polymers and understand the influence of these new polymers in bulk heterojunction to design polymer solar cells. In this study, two different monomers were synthesized. The first monomer …
A Paleoclimate Modeling Experiment To Calculate The Soil Carbon Respiration Flux For The Paleocene-Eocene Thermal Maximum, David M. Tracy
A Paleoclimate Modeling Experiment To Calculate The Soil Carbon Respiration Flux For The Paleocene-Eocene Thermal Maximum, David M. Tracy
Masters Theses 1911 - February 2014
The Paleocene-Eocene Thermal Maximum (PETM) (55 million years ago) stands as the largest in a series of extreme warming (hyperthermal) climatic events, which are analogous to the modern day increase in greenhouse gas concentrations. Orbitally triggered (Lourens et al., 2005, Galeotti et al., 2010), the PETM is marked by a large (-3‰) carbon isotope excursion (CIE). Hypothesized to be methane driven, Zeebe et al., (2009) noted that a methane based release would only account for 3.5°C of warming. An isotopically heavier carbon, such as that of soil and C3 plants, has the potential to account for the …
Improving The Accuracy And Precision Of An Arsenic Field Test Kit: Increased Reaction Time And Digital Image Analysis, James Kearns, Julian Tyson
Improving The Accuracy And Precision Of An Arsenic Field Test Kit: Increased Reaction Time And Digital Image Analysis, James Kearns, Julian Tyson
Chemistry Department Faculty Publication Series
No abstract provided.
Chirality And Handedness, Otto Vogl, Frank T. Traceski
Chirality And Handedness, Otto Vogl, Frank T. Traceski
Otto Vogl
No abstract provided.
How Pearls Are Made: A New Perspective, Otto Vogl
Degradadation, Aging And Stabilization, Otto Vogl
From The Congress In Vienna (Metternich) To The Pacific Polymer Federation, Otto Vogl, Frank T. Traceski
From The Congress In Vienna (Metternich) To The Pacific Polymer Federation, Otto Vogl, Frank T. Traceski
Otto Vogl
No abstract provided.