Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 102 for “"SPPs"”.
-
Applications of ROMP Polymers
… polymer, named solvent programmable polymers (SPPs), was developed by ring-opening metathesis polymerization (ROMP) based on monomers containing recognition groups that display restricted rotation. We could modulate the binding properties of the SPPs by heating in polar or non-polar solvents …
-
Factors affecting the Strategic Planning Process : case studies from Libyan public manufacturing companies
… in the area of Strategic Planning Processes (SPPs) inwestern contexts and especially in public organisations. Although such organisationsdiffer significantly from business companies, their need for improved 'operability' isthe same and since their difference in character means it is not …
-
Response of chromium and chromium-aluminum coatings on zircaloy-2 to high temperature steam
… the dissolution of second phase particles (SPPs) during HTS exposure. The stability of intermetallic SPPs in coated Zircaloy-2 was studied in 700C steam environment. Hydrogen generated from the steam oxidation of uncoated Zr were absorbed and formed δ-hydrides in Zircaloy matrix. Synchrotron …
-
Contribution à l'étude des effets psychologiques, psychophysiologiques et neuro-endocriniens de l'exposition humaine à des champs magnétiques 50 Hz et des problèmes soulevés par la variabilité interindividuelle
Effets sur la santé. Champs électromagnétiques. SPPS HH/012/21
-
Polarization Conversion Mediated Surface Plasmon Polaritons in Extraordinary Optical Transmission through a Nanohole Arrays
… on the role of surface plasmon polaritons (SPPs) in EOT. While the energy and momentum conditions have become clear, no consensus has been reached on the role of incident light polarization. This study presents a simple model that captures Bloch-SPP excitation, including the role of …
-
Chemical Synthesis Of Peptides And Peptide Thioesters
… thioesters. A direct approach for the Fmoc-SPPS of peptidyl thioesters is also delineated in this thesis.</p> <p>In the first part of chapter one, the difficulty and importance of chemical synthesis of peptides is explained, and a brief survey of available methods is given. The second part …
-
Characterization of D-boroala as a novel Broad-spectrum antibacterial agent targeting D-Ala-D-Ala ligase & designer linkers : model reactions and linear free energy relationships in the reactivity and design of solid-phase linkers
… using classical solid-phase peptide synthesis (SPPS) in the classical C-to-N direction. However, this strategy is not generally useful for preparing C-terminally modified peptide derivatives, which are of high interest as bioactive agents and drugs. SPPS in the N-to-C direction inverse SPPS …
-
Chemical Synthesis of Novel Calcium-Dependent Lipopeptide Antibiotics
… B utilising solid-phase peptide synthesis (SPPS). Chapter 1 gives an introduction to the problem of antibacterial resistance and an overview of clinically relevant AMPs and AMPs discovered in recent years. A summary of SPPS techniques is also provided. Chapter 2 gives an overview of CDLAs …
-
Light and Single-molecule Coupling in Plasmonic Nanogaps
… within metals termed surface plasmon polaritons (SPPs). SPPs are confined in nanometre gaps formed between two metallic surfaces which creates an optical resonance. This optical resonance of the system is controlled by the geometry and the material of the nanogap. The focus of this work is to …
-
Total Synthesis of Naturally Occurring Antimicrobial Peptides
… via Fmoc-solid-phase peptide synthesis (SPPS). The key noncanonical (methyl)lanthionine residues were synthesized in solution phase via an improved synthetic route and subsequently assembled to construct the peptide backbone using Fmoc-SPPS. N-Terminal truncated analogues of tikitericin …
-
Development of New Synthetic Approaches to Biologically-Active Peptides
… where the latter was suited for automated SPPS. It was found that replacement of piperidine by DABCO for Fmoc-deprotections was equally efficient and suitable for automated SPPS. The scavenging of acrylamide-tagged deletions was performed making use of a thiol-resin, of which the rate was …
-
Excitation, Interaction, and Scattering of Localized and Propagating Surface Polaritons
… emphasis is put on surface plasmon polaritons (SPPs). Such propagating surface waves can be excited directly by plane waves only at patterned interfaces. This process is studied for the case of a groove. The groove breaks the translational invariance, so that the SPPs can be launched locally at …
-
Metal-insulator-insulator-metal plasmonic waveguides and devices
… and coupling of surface plasmon polaritons (SPPs) within finite planar MIM plasmonic waveguides are examined both theoretically and experimentally. Gain (dye-doped polymer)-assisted MIM waveguides and terahertz quantum cascade laser MIM waveguides are numerically analyzed. The numerical …
-
Mechanistic and synthetic studies on the prochlorosin and cytolysin families of lanthipeptides
… kinetic control. Solid phase peptide synthesis (SPPS) was used to generate the substrates to study ProcM, and is also a flexibile tool to access non-native lanthipeptide analogues. Interestingly, a lanthipeptide, cytolysin S (CylLS”), exhibited cytolytic activity in synergy with cytolysin L …
-
Investigation and application of heterochiral proteins enabled by flow-based peptide synthesis
… structures. Solid-phase peptide synthesis (SPPS) and native chemical ligation enable the total chemical synthesis of proteins. Using these techniques, it is possible to design and study polypeptides foreign to Nature. Herein, I describe the investigation and application of proteins …
-
Nonreciprocal and Exotic Radiative Transfer in Type-I Magnetic Weyl Semimetals
… that nonreciprocal surface plasmon polaritons (SPPs) excited on this interface drive the nonreciprocity in the radiative heat transfer. In addition, we propose a physical mechanism for the nonreciprocity in terms of the forces felt by electrons as a result of the Berry curvature. Further …
-
Investigation of Synthetic Proteins Produced via Automated Fast-Flow Peptide Synthesis
… introduction of solid phase peptide synthesis (SPPS), the peptide community has endeavored to combine the convenience of flow chemistry with the iterative steps associated with peptide elongation in SPPS. Nearly one decade ago, members of the Pentelute lab envisioned and developed a flow-based …
-
Molecularly Imprinted Polymers--New Insights and Strategies
<p>Solvent programmable polymers (SPPs) were developed based on restricted rotation with the ability to respond and remember the stimuli-induced properties. The SPP was prepared via Ring Opening Metathesis Polymerization (ROMP). The recognition properties of SPPs can be modulated by heating in …
-
Capturing irradiation-enhanced corrosion of zircaloy-4 with a charge-based diffusion/drift phase field model
… to Fe depletion from secondary phase particles (SPPs) as the culprit in enhancing Zircaloy-4 corrosion rates in PWRs. These new findings have been incorporated in a mechanistic finite-element phase field model of Zircaloy-4 corrosion called HOGNOSE. It accounts for both diffusion-and drift-based …
-
Discovery and bioactivity assessment of a peptide, QUB-1976, from the skin secretion of the Senegal running frog, (Kassina senegalensis)
… sequenced. The peptide was synthesised by SPPS and was proven to be synthesised correctly by HPLC and MALDI-TOF MS. Finally, several bioactivity assessments were performed to discover the potential value of QUB-1976. QUB-1976 had antimicrobial activity against S. aureus and showed no …
Page 1 of 6