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Chemical & Petroleum Engineering Scholarly Works: Recent submissions
Now showing items 101-120 of 182
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Stem Cells in Aggregate Form to Enhance Chondrogenesis in Hydrogels
(Public Library of Science, 2015-12-31)There are a variety of exciting hydrogel technologies being explored for cartilage regenerative medicine. Our overall goal is to explore whether using stem cells in an aggregate form may be advantageous in these applications. ... -
Recent Patents Pertaining to Immune Modulation and Musculoskeletal Regeneration with Wharton's Jelly Cells
(Bentham Science Publishers, 2013)Umbilical cord mesenchymal stromal cells (UCMSCs) are isolated from Wharton's jelly in the umbilical cord at birth, and offer advantages over adult mesenchymal stromal cells (MSCs) such as highly efficient isolation, faster ... -
Role of Tunable Acid Catalysis in Decomposition of α-Hydroxyalkyl Hydroperoxides and Mechanistic Implications for Tropospheric Chemistry
(Royal Society of Chemistry, 2014-09-18)Electronic structure calculations have been used to investigate possible gas-phase decomposition pathways of α-hydroxyalkyl hydroperoxides (HHPs), an important source of tropospheric hydrogen peroxide and carbonyl compounds. ... -
Towards highly selective ethylene epoxidation catalysts using hydrogen peroxide and tungsten- or niobium-incorporated mesoporous silicate (KIT-6)
(Royal Society of Chemistry, 2014-08-05)Significant ethylene epoxidation activity was observed over Nb- and W-incorporated KIT-6 materials with aqueous hydrogen peroxide (H2O2) as the oxidant and methanol as solvent under mild operating conditions (35 °C and 50 ... -
Spectroscopic Determination of Chromium(VI) during the Reduction of Chromium(VI) to Chromium(III)
(Society for Applied Spectroscopy, 1991-07)Reduction of chromium(VI) to chromium(III) by thiourea between pH 3.0 and 5.5 is a key aspect of the chromium(VI)/thiourea/polyacrylamide gel polymer system used in enhanced oil recovery processes. A method has been developed ... -
Cycloaddition reaction of furan with Si(100)-2×1
(American Institute of Physics, 2001)The adsorption configuration of furan on Si(100)-2×1 at 125 K has been investigated using x-ray photoelectron spectroscopy(XPS), ultraviolet photoelectron spectroscopy (UPS), high resolution electron energy loss spectroscopy ... -
Covalent attachment of acetonitrile on Si(100) through Si–C and Si–N linkages
(American Institute of Physics, 2001)The covalent binding and adsorption states of acetonitrile on Si(100) have been investigated using temperature programmed desorption(TPD),x-ray photoelectron spectroscopy(XPS), high-resolution electron energy loss spectroscopy ... -
Selective attachment of benzonitrile on Si 111 -7Ã7: Configuration, selectivity, and mechanism
(American Physical Society, 2002-02-21)The cycloaddition of benzonitrile with Si(111)-7×7 has been investigated as a model system for understanding the interaction of conjugated π-electron systems with Si(111)-7×7 using high-resolution electron energy loss ... -
Tetra-σ attachment of allyl cyanide on Si(111)−7×7
(American Physical Society, 2002-07-31)The investigation of allyl cyanide adsorption on Si(111)−7×7 using high-resolution electron-energy-loss spectroscopy (HREELS), x-ray photoelectron spectroscopy (XPS), and ultraviolet photoelectron spectroscopy (UPS) reveals ... -
Adsorption of phenylacetylene on Si(100)-2×1: Reaction mechanism and formation of a styrene-like π-conjugation system
(American Physical Society, 2003-03-27)The interactions of phentylacetylene and phenylacetylene−α−d1 with Si(100)−2×1 have been studied as a model system to mechanistically understand the adsorption of conjugated π-electron aromatic substitutions on Si(100)−2×1. ... -
Multiple configurations of N-methylpyrrole binding on Si(111)−7×7
(American Physical Society, 2003-06-06)Abstract available in the PDF. -
A new scanning tunneling microscope reactor used for high-pressure and high-temperature catalysis studies
(American Institute of Physics, 2008-01)We present the design and performance of a homebuilt high-pressure and high-temperature reactor equipped with a high-resolution scanning tunneling microscope STM for catalytic studies. In this design, the STM body, ... -
Nanoscale surface chemistry in self- and directed-assembly of organic molecules on solid surfaces and synthesis of nanostructured organic architectures
(International Union of Pure and Applied Chemistry, 2008-01)This article briefly reviews the interplay of weak noncovalent interactions involved in the formation of self-assembled monolayers of organic molecules and the strong chemical binding in directed-assembly of organic molecules ... -
Integration of surface science, nanoscience, and catalysis
(International Union of Pure and Applied Chemistry, 2010-12)This article briefly reviews the development of surface science and its close relevance to nanoscience and heterogeneous catalysis. The focus of this article is to highlight the importance of nanoscale surface science for ... -
Autoxidation of 2,6-di-tert-butylphenol with cobalt Schiff base catalysts by oxygen in CO2-expanded liquids
(Royal Society of Chemistry, 2004-02-04)CO2-expanded acetonitrile and methylene chloride have been used in this first detailed study of catalytic O2 oxidations in these remarkably effective reaction media. The autoxidation of 2,6-di-tert-butylphenol (DTBP) with ... -
Immobilized metal complexes in porous hosts: catalytic oxidation of substituted phenols in CO2 media
(Royal Society of Chemistry, 2006-08-14)Development of processes that utilize heterogeneous catalysis in environmentally beneficial media is of fundamental and practical importance. The oxidation of 2,6-di-tert-butylphenol (DTBP) to 2,6-di-tert-butyl-1,4-benzoquinone ... -
Isobutane/butene alkylation on microporous and mesoporous solid acid catalysts: probing the pore transport effects with liquid and near critical reaction media
(Royal Society of Chemistry, 2008-11-13)The alkylation of isobutane with 1-butene was investigated on microporous (β-zeolite) and mesoporous (silica supported heteropolyacids) catalysts in a slurry reactor. The reaction was investigated in the range of 25–100 ... -
High-pressure phase equilibria with compressed gases
(American Institute of Physics, 2007)An apparatus is described that is capable of determining high-pressure vapor-liquid equilibrium, liquid-liquid equilibrium, solid-liquid-vapor equilibrium, vapor-liquid-liquid equilibrium, and mixture critical points and ... -
Kinetics and solvent effects in the synthesis of ionic liquids: imidazolium
(Royal Society of Chemistry, 2009-02-26)Ionic liquids (ILs) are being considered as a promising class of potentially environmentally-friendly (“green”) solvents and materials for use in a variety of applications. However, ionic liquids are conventionally synthesized ... -
Superior Therapeutic Potential of Young Bone Marrow Mesenchymal Stem Cells by Direct Intramyocardial Delivery in Aged Recipients with Acute Myocardial Infarction: In Vitro and In Vivo Investigation
(SAGE Publications, 2011-10-06)Bone-marrow-derived mesenchymal stem cells (MSCs) have been studied for treatment of myocardial infarction (MI). Since MSCs from older donors show quantitative and qualitative senescent changes, we hypothesized that a ...