Browsing Chemistry by Title
Now showing items 496-515 of 826
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Nano-confined water within the membrane of self-assembled vesicles
(University of Waterloo, 2021-10-01)The hydrophobic metal carbonyl complexes, known as FpR (Fp = (Cp)Fe(PPh3)(CO)(CO−), Cp = cyclopentadiene, R = C3Bithiophene, C6Pyrene, C6Azobenzene or C6), self-assembles into stable colloids in water. The colloids are ... -
Nanochemistry on Si(100): Surface Biofunctionalization by Amino-containing Bifunctional Molecules, and Shape Control of Copper Core-Shell Nanoparticles
(University of Waterloo, 2009-08-19)The present research involves two projects: a surface science study of the room-temperature adsorption and thermal evolution of allylamine and ethanolamine on Si(100)2×1, studied by using temperature-dependent X-ray ... -
Nanodiamond decorated liposomes as highly biocompatible delivery vehicles and a comparison with carbon nanotubes and graphene oxide
(Royal Society of Chemistry, 2013-12-21)Studying interactions between nano-carbons and lipid membranes is important for multiplexed drug delivery, device fabrication and for understanding toxicity. Herein, we report that nanodiamond (ND, sp3 carbon) forms a ... -
Nanostructured Carbons and Additives for Improvement of the Lithium-Sulfur Battery Positive Electrode
(University of Waterloo, 2013-04-19)Large specific gravimetric/volumetric energy density, environmental benignity and safe low working voltage. All of these points have been used to describe the lithium sulfur (Li-S) battery in the past, but often times it ... -
Nanostructured Materials for Energy Storage and Conversion
(University of Waterloo, 2009-11-19)Efficient, cost effective, and environmentally friendly energy storage and conversion systems are highly desirable to meet ever increasing demands. Nanostructured materials have attracted great interest due to their many ... -
Nanostructured Materials for Pseudocapacitors and Single-Electron Devices
(University of Waterloo, 2014-05-21)As a result of increasing demand of power in the modern society, energy storage/consumption is playing a more important role on future economics. Therefore energy storage systems which are more environmentally friendly, ... -
Nanostructured Materials for Tactile and Catalytic Applications
(University of Waterloo, 2018-04-26)In response to the needs of the modern information-rich society, there is an increasing demand for multifunctional materials with novel properties to advance the development of the new-generation electronics. To synthesize ... -
Nanostructured Non-carbonaceous Materials for Improvement of Sulfur Cathode in Lithium-Sulfur Battery
(University of Waterloo, 2014-04-28)Lithium-sulfur battery based on sulfur cathode has the advantages of high specific capacity, high energy density, environmental benignity and natural abundance of sulfur. These advantages over conventional lithium-ion ... -
Near real-time determination of B.1.1.7 in proportion to total SARS-CoV-2 viral load in wastewater using an allele-specific primer extension PCR strategy
(Elsevier, 2021-10-15)"The coronavirus disease 2019 (COVID-19) pandemic caused by the severe acute respiratory syndrome corona- virus 2 (SARS-CoV-2) has claimed millions of lives to date. Antigenic drift has resulted in viral variants ... -
Needle Trap Device and Solid Phase Microextraction Combined with Portable GC-MS for On-Site Applications
(University of Waterloo, 2011-06-21)Needle trap device (NTD) is a technique that is useful for a wide variety of applications involving the sample preparation of compounds with a wide range of chemico-physico properties, and varying volatilities. A newly ... -
Neutral Radicals as Strongly Correlated Materials: Insights from Theory and Experiment
(University of Waterloo, 2014-12-19)Neutral organic radicals have been pursued for conductive and magnetic solid state properties associated with their unpaired electron. Historically, synthetic challenges and design limitations restricted these materials ... -
A new and efficient Solid Phase Microextraction approach for analysis of high fat content food samples using a matrix-compatible coating
(Elsevier, 2017-05-15)The current work presents the optimization of a protocol enabling direct extraction of avocado samples by a new Solid Phase Microextraction matrix compatible coating. In order to further extend the coating life time, ... -
New approaches to characterize polymeric oil additives in solution based on pyrene excimer fluorescence
(Wiley, 2017-01-01)Maleated polyolefins (MaPOs) such as maleated ethylene propylene copolymers or polyisobutylene terminated at one end with a succininic anhydride can be used as polymeric dispersants in engine oils after reaction with ... -
New Arsenides and Antimonides as Thermoelectric Materials and Chalcogenides with Distorted Square Nets
(University of Waterloo, 2010-09-22)Thermoelectric (TE) materials can be ranked by their figure-of-merit, ZT, which is defined as ZT = (S2σT)/κ. Herein, T is the average temperature between the cold (TC) and hot sides (TH) of the thermoelectric device, S is ... -
New Calibration Approaches in Solid Phase Microextraction for On-Site Analysis
(University of Waterloo, 2004)Calibration methods for quantitative on-site sampling using solid phase microextraction (SPME) were developed based on diffusion mass transfer theory. This was investigated using adsorptive polydimethylsiloxane/divinylbenzene ... -
New Generation of Solid-Phase Microextraction Coatings for Complementary Separation Approaches: A Step toward Comprehensive Metabolomics and Multiresidue Analyses in Complex Matrices
(American Chemical Society, 2017-04-04)In this work, a new generation of solid-phase microextraction (SPME) coatings based on polytetrafluoro-ethylene amorphous fluoroplastics (PTFE AF 2400) as a particle binder is presented. The developed coating was tested ... -
A New Na(+)-specific DNAzyme Mutant from in Vitro Selection
(University of Waterloo, 2017-09-08)Sodium is one of the most ubiquitous metal ions in both intracellular and extracellular fluids. Many fluorescent sensors have been designed to measure Na+ concentrations. However, Na+ binding to biomolecules such as DNA ... -
A New Na+-Dependent RNA-Cleaving DNAzyme with over 1000-fold Rate Acceleration by Ethanol
(Wiley, 2016-01-15)Enzymes working in organic solvents are important for analytical chemistry, catalysis, and mechanistic studies. Although a few protein enzymes are highly active in organic solvents, little is known regarding nucleic ... -
New PNHN Pincer-Type Ligands and Their Complexes for Transfer Hydrogenation
(University of Waterloo, 2009-08-28)The ligand tBu2PC2H4NHCH2Py (PNHN) was synthesized starting from 2-pyridinecarboxaldehyde and 2-chloroethanamine. Initial attempts for coordination of the PNHN ligand to a metal center was performed using [IrCl(COE)2]2, ... -
New strategies for analysis of particulate loaded water
(University of Waterloo, 2016-05-16)This thesis describes the application of thin film solid phase microextraction (TF-SPME) for monitoring of time weighted average (TWA) concentrations and for investigating partitioning of UV filters and biocides in aquatic ...