Index Catalog // ScholarsArchive@OSU

The development of aminal radicals for the synthesis of nitrogen-rich natural products

Creator:: Schiedler, David A.
Abstract:: Organic compounds which contain one or more nitrogen atoms are especially important as they are disproportionately represented among biologically active molecules. As a result, significant effort has been focused on the development of methods for the synthesis of nitrogenous molecules. We identified the aminal as an under-explored functional group. Despite...
Resource Type:: Dissertation
Full Text:: ) Pramod, G.; Mohan, H.; Manoj, P.; Manojkumar, T. K.; Manoj, V. M.; Mittal, J. P.; Aravindakumar, C. T

Gold Nanostars: Spectroscopic and Physical Properties

Creator:: Zhou, Lixia
Abstract:: Tethering fluorophores on metal nanoparticles for metal enhanced fluorescence (MEF) has attracted a lot of attention from scientists interested in fluorescence based approaches. MEF has many benefits in fluorescence related techniques, because the analytical signal increases and enables potentially lower detection limits or better sensitivity. Many types of nanoparticles have...
Resource Type:: Dissertation
Full Text:: Sean M. Burrows Tethering fluorophores on metal nanoparticles for metal enhanced

Electrochemical Micro-sensors for Probing Bacterial Metabolic Behavior with Scanning Electrochemical Microscopy

Creator:: Jayathilake, Nadeeshani M.
Abstract:: Dental plaque is one of the well-characterized biofilms in the human body. Oral bacterial species play vital roles in maintaining healthy bacterial homeostasis as well as causing oral infections. Many of the oral diseases are caused by opportunistic pathogens, and therefore, the bacterial metabolic activities become important in dictating their...
Resource Type:: Dissertation
Full Text:: (mol m-3), and r is the radius (m) of the electrode. Equation 1.1 𝐼"" = 4𝑛𝐹𝐷𝐶𝑟

Centrifugal Partition Chromatography, Microfabrication, and a Smartphone-based Detection Platform : Analytical Chemistry from Preparative-scale Separation to Micro-scale Analysis

Creator:: Boonloed, Anukul
Abstract:: Analytical chemistry is an area of chemistry primarily focused on the study and use of instruments for separation, identification, and quantification of an analyte of interest. Specifically, separation science within analytical chemistry often refers to the process of dividing mixtures into their small component parts based on differences in their...
Resource Type:: Dissertation
Full Text:: , Vrushali Joshi, Ommi Cawley, Zach Kasten, AJ Mason, Rika Suzuki, Seira Tokutake, Kota Muto, Mizuho

Efficient Fabrication of Nanoporous Si and Si/Ge Enabled by a Heat Scavenger in Magnesiothermic Reactions

Creator:: Luo, Wei, Wang, Xingfeng, Meyers, Colin, Wannenmacher, Nick, Sirisaksoontorn, Weekit, Lerner, Michael M., and Ji, Xiulei
Abstract:: Magnesiothermic reduction can directly convert SiO₂ into Si nanostructures. Despite intense efforts, efficient fabrication of highly nanoporous silicon by Mg still remains a significant challenge due to the exothermic reaction nature. By employing table salt (NaCl) as a heat scavenger for the magnesiothermic reduction, we demonstrate an effective route to...
Resource Type:: Article
Full Text:: Wannenmacher2, Weekit Sirisaksoontorn1, Michael M. Lerner1 & Xiulei Ji1 1Department of Chemistry, 2Department

Electrochemical Advancement of Solid State Ion Selective Electrodes

Creator:: Bahro, Christopher
Abstract:: The general theme of this dissertation is the development of new analytical sensors to quantitatively study biological and environmental samples in aqueous and non-aqueous environments. A platinum ultramicroelectrode (UME) and a unique carbon-based pH microprobe were used to design a new SECM-based electrochemical bioassay. The Pt UME was used to...
Resource Type:: Dissertation
Full Text:: bacterial biofilms. A 25 μm Pt electrode was used as an SECM probe to quantitatively map the morphology

Development of Carbon-based Ion Selective Microsensors as Scanning Electrochemical Microscopy (SECM) Probes

Creator:: Ummadi, Jyothir Ganeshwar Reddy
Abstract:: The general theme of this dissertation is the application of novel carbon based micro sensors with the scanning electrochemical microscopy (SECM). SECM allows positioning of the probe without touching the substrate while mapping the chemical parameters in 3D space above the substrate. The main focus of the dissertation is the...
Resource Type:: Dissertation
Full Text:: high urea (10 g/L) brine solution at 23C. The Ca2+ concentration profiles were extended up to 600 m

Analytical Platform to Study Bacterial Metabolism and their Interactions with Biomaterials using SECM

Creator:: Sheet, Partha S.
Abstract:: The microbial communities play a crucial role in maintaining human health and cause diseases through very complex microbial chemical interactions. Therefore, these microbial communities have drawn much attention to the scientific communities. To elucidate these complex microbial communities and the chemical interactions within it, one or more isolated species of...
Resource Type:: Dissertation
Full Text:: to Dr. Vrushali S. Joshi, Suji Park, Dr. Jyothir Ganesh Ummadi, Dr. Nadeeshani M. Jayathilake

The relation of a soluble factor to phosphorylation during the oxidation of reduced nicotinamide adenine dinucleotides

Creator:: Smith, Karin Ann
Resource Type:: Masters Thesis
Full Text:: Hogeboom and Schneider (16, p. 513-519) as modified by Crane et al. (8, p. 475-487) with 0. 25 M sucrose

Alternating Between Amperometric Copper Detection and Potentiometric Calcium Detection on a Carbon-based Ion-selective Electrode

Creator:: Park, Suji
Abstract:: The unique capability of carbon-based ion-selective electrode (ISE) to perform highly sensitive anodic stripping voltammetry, while maintaining all the properties of an ISE, is demonstrated in terms of sensitivity, detection limit, response time and selectivity. Square wave anodic stripping voltammetry involves deposition and dissolution steps of metal ions, which means...
Resource Type:: Masters Thesis
Full Text:: wave voltammogram of 0.5, 1, 1.5, 2, 2.5, and 3 mM Ruhex in 0.1 M KCl on Ca2+-µISE. (B) Plot of Ruhex

ScholarsArchive@OSU

The development of aminal radicals for the synthesis of nitrogen-rich natural products

Gold Nanostars: Spectroscopic and Physical Properties

Electrochemical Micro-sensors for Probing Bacterial Metabolic Behavior with Scanning Electrochemical Microscopy

Centrifugal Partition Chromatography, Microfabrication, and a Smartphone-based Detection Platform : Analytical Chemistry from Preparative-scale Separation to Micro-scale Analysis

Efficient Fabrication of Nanoporous Si and Si/Ge Enabled by a Heat Scavenger in Magnesiothermic Reactions

Electrochemical Advancement of Solid State Ion Selective Electrodes

Development of Carbon-based Ion Selective Microsensors as Scanning Electrochemical Microscopy (SECM) Probes

Analytical Platform to Study Bacterial Metabolism and their Interactions with Biomaterials using SECM

The relation of a soluble factor to phosphorylation during the oxidation of reduced nicotinamide adenine dinucleotides

Alternating Between Amperometric Copper Detection and Potentiometric Calcium Detection on a Carbon-based Ion-selective Electrode

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