Browsing Science (Faculty of) by Title
Now showing items 2698-2717 of 3042
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Symmetry and Topology in Disordered Systems
(University of Waterloo, 2023-06-14)Global symmetries greatly enrich the landscape of topological quantum phases, playing an essential role from symmetry-protection of topological insulators to symmetry charge fractionalization on anyons in fractional quantum ... -
Symmetry Breaking, Order-by-Disorder, Fragmentation, and Spin-Liquids in the Magnetic Pyrochlore Lattice with Anisotropic Interactions
(University of Waterloo, 2023-01-26)Within the study of frustrated magnetism, the pyrochlore lattice is deemed a fruitful ground where phenomena such as quantum and thermal order-by-disorder, moment fragmentation, and spin-liquids, both quantum and classical, ... -
Symmetry of the Charge Ordering Phases in Hole-Doped Cuprates Studied by Resonant X-Ray Absorption and Scattering
(University of Waterloo, 2019-05-23)In the underdoped cuprates, superconductivity coexists with a rich variety of other electronic orders. Understanding the nature of these orders, how they interact with one another, and the mechanisms that produce them is ... -
Symmetry, Asymmetry and Quantum Information
(University of Waterloo, 2012-09-28)It is impossible to overstate the importance of symmetry in physics and mathematics. Symmetry arguments play a central role in a broad range of problems from simplifying a system of linear equations to a deep role in ... -
Synergistic pH effect for reversible shuttling aptamer-based biosensors between graphene oxide and target molecules
(Royal Society of Chemistry, 2011-06-07)DNA aptamers are known to desorb from graphene oxide (GO) surface in the presence of target molecules. We demonstrate herein that the binding equilibrium can be shifted by simply tuning the solution pH. At lower pH, the ... -
Syntheses and Applications of Vinylstannanes
(University of Waterloo, 2009-08-10)The development of methods for the synthesis of vinylstannanes is reported. The applications of these useful compounds are highlighted in a variety of total syntheses of natural products. -
Synthesis and Characterisation of Chiral Nanomaterials and their Influence on Stem Cell Differentiation
(University of Waterloo, 2017-08-11)Tissue engineering is a field related to regenerative medicine which aims at replacing or regenerating a patient’s tissue, usually using a combination of cells and a bioactive material which is designed to influence cell ... -
Synthesis and Characterization of Cyclopentadienyl Dicarbonyldiphenylphosphinopropyliron for Migratory Insertion Polymerization
(University of Waterloo, 2013-04-29)Metal-containing polymers (MCPs) are emerging as a class of interesting materials with promising properties and functions. Although many techniques are available for their synthesis, the range of main-chain MCPs available ... -
Synthesis and Characterization of Dissymmetric Gemini Surfactants for Gene Delivery Application
(University of Waterloo, 2016-08-29)The lack of safe and efficient gene- delivery methods has been constantly a limiting obstacle to human gene therapy. Viral vectors have been superior in delivering exogenous DNA or RNA into a foreign cell due to their ... -
Synthesis and Characterization of Ethylene Carbonate Modified Polyisobutylene Succinimide Dispersants
(University of Waterloo, 2010-05-19)Succinimide-based dispersants are the most commonly used dispersants in the oil industry. They are used in engine oil to prevent the aggregation of carbon-rich particles generated during engine operation, and consequently ... -
Synthesis and Characterization of Furan-Based Non-ionic Surfactants (FBNIOS)
(University of Waterloo, 2021-01-27)A series of furan-based non-ionic surfactants (fbnios) derived from 5-(chloromethyl)furfural (5-CMF), a feedstock prepared by Origin Materials through a carbon negative process, were prepared from commercially available ... -
Synthesis and Characterization of Iron-Amide and Iron-Imide-Sulfide Clusters
(University of Waterloo, 2011-08-30)The iron-molybdenum cofactor (FeMo cofactor) is the catalytic center of nitrogen fixation in molybdenum-dependent nitrognease enzymes. The resting state cofactor is a complex [MoFe7S9X] cluster, in which the central ligand ... -
Synthesis and Characterization of Macrocycles via Migration Insertion Polymerization (MIP)
(University of Waterloo, 2021-09-30)Migration insertion polymerization (MIP) of organometallic monomers, ᴾFpCₓ [ᴾFp = (PPh₂(CH₂)₃Cp)Fe(CO)₂, Cₓ = (CH₂)ₓ₋₁CH₃, X = 12 or 18] were performed ether in bulk or solution. This MIP exclusively produced ring molecules ... -
Synthesis and Characterization of Multiband Neutral Radicals
(University of Waterloo, 2014-12-05)The notion that an array of free radicals might behave like metallic sodium was first suggested by McCoy and Moore in 1911. While the hypothesis represents an important historical landmark, there are many synthetic challenges ... -
Synthesis and Characterization of New Solid-State Li-Superionic Conductors
(University of Waterloo, 2017-11-08)Compared with lithium ion batteries which use liquid electrolyte, all solid-state lithium batteries (ASSLBs) show great potential in improving the safety and achieving both high power and energy densities. This has driven ... -
Synthesis and Characterization of Oil-soluble Dispersants
(University of Waterloo, 2007-02-19)Oil-soluble dispersants are some of the most important additives used by the oil industry. Their function is to reduce the aggregation of carbonaceous deposits produced during the normal operation of the engine. This project ... -
Synthesis and Characterization of Thermoresponsive Starch Nanoparticles
(University of Waterloo, 2016-08-31)Thermoresponsive polymers (TRPs) are polymers that exhibit an abrupt change in their physical properties, such as solubility, with a change in temperature. The vast majority of TRPs produced to date are synthetic and ... -
Synthesis and Characterization of Two Pyrene Labeled Gemini Surfactants and their Interactions with Oppositely Charged Molecules
(University of Waterloo, 2022-06-09)Cationic gemini surfactants (GS) have attracted the attention of the scientific community as potential carriers of genetic cargo for gene transfection applications. These GS/polynucleotides complexes have been extensively ... -
Synthesis and Chemistry of Carbocyclic Mimics of β-Lactams as β-Lactamase Inhibitors
(University of Waterloo, 2014-10-23)Antibiotics are very important chemical substances, which have saved millions of lives. However, bacterial resistance towards antibiotics, especially the β-lactams, is becoming increasingly serious. Currently, the β-lactam ... -
Synthesis and Chemistry of Isoprekinamycin and Analogues
(University of Waterloo, 2009-01-22)A methodology was studied to set up the benzo[a]fluorene skeleton, which provides a potential route to the total synthesis of isoprekinamycin (IPK) (1-112) and analogues of this natural product that contains an unusual ...