Browsing Chemistry by Title
Now showing items 530-549 of 826
-
Observations of Atmospheric Gases Using Fourier Transform Spectrometers
(University of Waterloo, 2007-10-23)Remote sensing of atmospheric gases improves our understanding of the state and evolution of the Earth’s environment. At the beginning of the thesis, the basic principles for the retrieval of concentrations of atmospheric ... -
Oligomerization and hemolytic properties of the C-terminal domain of pyolysin, a cholesterol-dependent cytolysin
(NRC Research Press, 2013-04)Pyolysin (PLO) belongs to the homologous family of the cholesterol-dependent cytolysins (CDCs), which bind to cell membranes containing cholesterol to form oligomeric pores of large size. The CDC monomer structure consists ... -
Oligonucleotide-functionalized hydrogels as stimuli responsive materials and biosensors
(Royal Society of Chemistry, 2011-08-07)Hydrogels are crosslinked hydrophilic polymers that undergo swelling in water. The gel volume is affected by many environmental parameters including temperature, pH, ionic strength, and solvent composition. Therefore, these ... -
On The Role of Sphingomyelinase in CAMP-factor Membrane insertion and Oligomerisation
(University of Waterloo, 2009-08-14)ABSTRACT CAMP factor is a 25kDa extracellular protein from Streptococcus agalactiae (Group B streptococci) that contains 226 amino acid residues. CAMP factor has been characterized as a pore-forming toxin (PFT). The ... -
On-site Sample Preparation and Introduction to Ion Mobility Spectrometry
(University of Waterloo, 2009-12-22)Solid phase microextraction (SPME), needle trap device (NTD), and membrane extraction with a sorbent interface (MESI) are solvent-free sample preparation techniques that were developed to perform the rapid routine analysis ... -
On-Site Sampling and Determination of Aliphatic Amines in Industrial Waste Water using SPME
(University of Waterloo, 2012-01-06)In any oil production company, one of the problems that is faced on a daily basis and which sometimes hinders the operation is corrosion. In the presence of dissolved oxygen in the water inside any vessel, tank, or pipeline, ... -
One-dimensional Nanostructures of Hafnium Oxides: Fabrication with and without Ti/Fe Doping, and Magnetic Properties
(University of Waterloo, 2022-01-10)Since the discovery of giant magnetoresistance (GMR) in the late 1980s, which marked the emergence of spintronic technology, the integration of conventional semiconductor-based electronics with spintronics has always been ... -
Open Port Probe Sampling Interface for the Direct Coupling of Biocompatible Solid-Phase Microextraction to Atmospheric Pressure Ionization Mass Spectrometry
(American Chemical Society, 2017-04-04)In recent years, the direct coupling of solid phase microextraction (SPME) and mass spectrometry (MS) has shown its great potential to improve limits of quantitation, accelerate analysis throughput, and diminish potential ... -
Optimization of a Needle Trap Device
(University of Waterloo, 2011-09-30)Various needle trap devices (NTDs) with different designs for different applications have been developed during the past decade. A theoretical model on the fundamentals of the NTD was recently proposed, which employed the ... -
Optimization of Capillary Electrophoresis With Imaging Detection for Estimation of Diffusion Coefficients
(University of Waterloo, 2015-05-19)The diffusion coefficient, D, is an important physico-chemical property of the proteins. While it can be measured using various analytical techniques, capillary electrophoresis (CE) is widely used for this purpose. CE ... -
Optimization of Solid Phase Microextraction for Determination of Disinfection By-products in Water
(University of Waterloo, 2012-04-17)A new technique for sample preparation and trace analysis of organic pollutants in water using mixed-phase thin film (MPTF) devices, combined with direct thermal desorption, cold trapping, gas chromatography-mass spectrometry ... -
Optimization of SPME coating characteristics for metabolomics and targeted analysis with LC/MS
(University of Waterloo, 2015-09-23)Metabolomics data provides complementary information to proteomics, genomics, and transcriptomics, in addition to enabling the tracking of the dynamic reactions in living systems. Metabolomics is widely used in various ... -
Optimization of Thermoelectric Chalcogenides
(University of Waterloo, 2015-01-23)Thermoelectric (TE) materials can convert heat into electricity when a temperature gradient is applied (Seebeck effect), and can pump heat from the cold end to the hot end using electricity (Peltier effect). These materials ... -
Optimization of Tin Selenide Thermoelectric Properties
(University of Waterloo, 2023-01-27)The high performance thermoelectric material tin selenide is of notable interest to the field of thermoelectric materials; since breaking the record for being the most efficient thermoelectric material due to the ultralow ... -
Optimization of Type-I Clathrates for Thermoelectric Properties
(University of Waterloo, 2012-10-04)The increase in waste heat after consuming energy or burning fossil fuels is an issue environmentally and economically. Thermoelectric (TE) materials are developed to use in various applications because of their ability ... -
Organocatalytic Asymmetric Conjugate Addition of Heteroaryl Moieties to α,β-Unsaturated Enones Using Boronates and 3,3ʹ-Disubstituted Binaphthols
(University of Waterloo, 2012-04-30)Asymmetric conjugate addition is an important methodology for carbon-carbon bond formation in organic synthesis. While there is extensive literature on the asymmetric conjugate addition of a wide selection of donors to ... -
Orthogonal Adsorption Onto Nano-Graphene Oxide Using Different Intermolecular Forces for Multiplexed Delivery
(Wiley, 2013-05-31)Nano-graphene oxide can adsorb both doxorubicin and zwitterionic dioleoyl-sn-glycero-3-phosphocholine (DOPC) liposomes in an orthogonal and non-competing manner with high capacities based on different surface and intermolecular ... -
Oxidation Level-Dependent Zwitterionic Liposome Adsorption and Rupture by Graphene-based Materials and Light-Induced Content Release
(Wiley, 2013-04-08)Liposomes may be stably adsorbed or ruptured on graphene-based materials, depending on the oxidation state of graphene. IR-induced liposome leakage is achieved, since graphene oxide does not induce liposome leakage spontaneously. -
Parallel Polyadenine Duplex Formation at Low pH Facilitates DNA Conjugation onto Gold Nanoparticles
(University of Waterloo, 2017-04-20)DNA-functionalized gold nanoparticles (AuNPs) have been extensively used in sensing, drug delivery, and materials science. A key step is to attach DNA onto AuNPs forming a stable and functional conjugate. While the traditional ... -
Parallel Polyadenine Duplex Formation at Low pH Facilitates DNA Conjugation onto Gold Nanoparticles
(American Chemical Society, 2016-11-15)DNA-functionalized gold nanoparticles (AuNPs) have been extensively used in sensing, drug delivery, and materials science. A key step is to attach DNA to AuNPs, forming a stable and functional conjugate. Although the ...