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5,177 full-text articles. Page 1 of 103.

Development Of Anti-Fouling, Anti-Microbial Membranes By Chemical Patterning, Steven Weinman, Na Li, Viatcheslav Freger, Moshe Herzberg, Scott Husson 2015 Clemson University

Development Of Anti-Fouling, Anti-Microbial Membranes By Chemical Patterning, Steven Weinman, Na Li, Viatcheslav Freger, Moshe Herzberg, Scott Husson

Chemical and Biomolecular Graduate Research Symposium

Over 1 billion people lack access to clean drinking water. Membranes are a tool that can help provide clean water to these people. However, treatment of impaired waters for beneficial use exposes the membranes to feed waters containing biological and abiotic species, which leads to fouling and loss of membrane productivity over time. Since reduction in flux due to fouling is one of the largest costs associated with membrane processes in water treatment, new coatings that limit fouling would have significant economic and societal impacts. Developing these advanced coatings is the focus of our work.


Density Functional Theory Simulations Of Mofs Encapsulated-Catalyzed Systems, Jiazhou Zhu, Rachel B. Getman 2015 Clemson University

Density Functional Theory Simulations Of Mofs Encapsulated-Catalyzed Systems, Jiazhou Zhu, Rachel B. Getman

Chemical and Biomolecular Graduate Research Symposium

The research is mainly on Computational Design of Highly Selective Transition Metal Catalysts Encapsulated by Metal-­‐Organic Frameworks for Butane Oxidation to 1-­‐Butanol. Metal Organic Framework (MOF) grown over a heterogeneous catalyst. Pores of framework allow only certain molecules of correct size, orientation, or chemical properties to access catalyst. The framework will force molecule into desired orientation where only the terminal atoms will “see” the catalyst. In our simulation we would like to use the helium ring to simulate the MOFs pores, since He is inert and exhibits the no chemical reactivity. The reaction we are looking into is ...


Modification Of Liposome Release Characteristics With Metal Nanoparticles, Saptarshi Chakraborty, Christopher L. Kitchens 2015 Clemson University

Modification Of Liposome Release Characteristics With Metal Nanoparticles, Saptarshi Chakraborty, Christopher L. Kitchens

Chemical and Biomolecular Graduate Research Symposium

Gold nanoparticles have been getting increasing amount of attention due to their stability, optical properties and low toxicity in the field of consumer products and biomedicines. Gold nanoparticles with various surface chemistries have been synthesized in order to take advantage of the size, shape and morphology dependent properties of the nanoparticles which vary greatly from the bulk properties. These properties of gold nanoparticles have made them attractive in optical sensing, targeted drug delivery, bio imaging, chemical, catalytic and photo thermal applications. These surface functionalized nanoparticles were used to study nanoparticle-lipid bilayer interactions using lipid bilayer permeability studies, where permeability of ...


Alternative Sample Loading Preparation For Thermal Ionization Mass Spectrometry, Scott M. Husson, Brian Powell, Glenn Fugate, David Locklair, Joseph Mannion 2015 Clemson University

Alternative Sample Loading Preparation For Thermal Ionization Mass Spectrometry, Scott M. Husson, Brian Powell, Glenn Fugate, David Locklair, Joseph Mannion

Chemical and Biomolecular Graduate Research Symposium

This contribution describes a new sample loading method for Thermal Ionization Mass Spectrometry (TIMS), which is used in nuclear safeguards and non-proliferation efforts worldwide and is known as the “gold standard” in isotopic ratio measurements of plutonium. TIMS analysis is used to determine grades of nuclear material and the extent of enrichment at production sites. The current sample loading method for TIMS analysis is known as “bead-loading”. While it provides the lowest detection limit of any known method for plutonium analysis, bead-loading is a difficult, time consuming, and expensive method that results in up to 20% sample loss. The major ...


Dendrimer-Guest Interactions: Challenging Conventional Wisdom, Ryan S. DeFever, Sapna Sarupria 2015 Clemson University

Dendrimer-Guest Interactions: Challenging Conventional Wisdom, Ryan S. Defever, Sapna Sarupria

Chemical and Biomolecular Graduate Research Symposium

Solutions to many future challenges - including water purification, drug delivery, and energy storage - will require innovative new materials. Dendrimers are a class of materials with wide-ranging applications whose behavior is not fully understood. In many potential applications, dendrimers interact with small molecules. Our work focuses on describing the fundamental mechanisms governing the interactions between dendrimers and hydrocarbons using molecular modeling and computer simulations. A common view of dendrimer host-guest interactions is that the guest molecules are encapsulated in protected interior voids within the dendrimer structure. Our results present an alternative picture and show that the association of a model aromatic ...


Carbon Fibers Derived From Bi-Component Precursors, Jing Jin, Amod A. Ogale 2015 Clemson University

Carbon Fibers Derived From Bi-Component Precursors, Jing Jin, Amod A. Ogale

Chemical and Biomolecular Graduate Research Symposium

No abstract provided.


Micro‐Textured Boron Nitride Nanoplatelet Modified Polyethylene Films, Ozgun Ozdemir, Amod A. Ogale 2015 Clemson University

Micro‐Textured Boron Nitride Nanoplatelet Modified Polyethylene Films, Ozgun Ozdemir, Amod A. Ogale

Chemical and Biomolecular Graduate Research Symposium

Linear low density polyethylene (LLDPE) micro‐textured films filled with boron nitride nanoplatelets (BNN) were produced by continuous melt extrusion. Nanoparticles displayed a significant extent of dispersion inside the matrix. The addition of BNN led to more than 10‐fold increase of the in‐plane thermal conductivity (TC) of the nanocomposite (7.7 W/m.K vs 0.3 W/m.K for pure LLDPE), and 1.3‐fold increase of through thickness TC. To increase the surface area available for convective heat transfer, micro‐textured films (T‐BNN) were produced from a micro‐patterned die. Nanoplatelets were aligned parallel ...


Polymer Sensors For The Quantification Of Waterborne Uranium, C E. Duval, A F. Seliman, T A. DeVol, S M. Husson 2015 Clemson University

Polymer Sensors For The Quantification Of Waterborne Uranium, C E. Duval, A F. Seliman, T A. Devol, S M. Husson

Chemical and Biomolecular Graduate Research Symposium

No abstract provided.


Effect Of Process Variables On Mechanical And Transport Properties Of Carbon Fibers From Mesophase Pitch, Victor Bermudez, Amod Ogale 2015 Clemson University

Effect Of Process Variables On Mechanical And Transport Properties Of Carbon Fibers From Mesophase Pitch, Victor Bermudez, Amod Ogale

Chemical and Biomolecular Graduate Research Symposium

To obtain mesophase pitch-based carbon fibers with improved mechanical strength while retaining superior electrical and thermal properties by

i) Systematic investigation of the relationship between DDR versus longitudinal and transverse microstructure of mesophase MP fibers; and

ii) Developing a novel type of microstructure


Optimal Design Of Hybrid Renewable Energy Systems, Alphonse Hakizimana, Joseph Scott 2015 Clemson University

Optimal Design Of Hybrid Renewable Energy Systems, Alphonse Hakizimana, Joseph Scott

Chemical and Biomolecular Graduate Research Symposium

Utilization of renewable energy sources such as wind and solar can overcome environmental threats associated with fossil fuels. But expensive power producing and storage components are required to harness and store renewable energy. In addition renewable sources are intermittent, thus unreliable when used independently.


Heterogeneous Catalysis Of Aqueous Phase Reforming Of Glycerol With First Principle Calculations And Molecular Dynamics Simulations, Tianjun Xie, Rachel B. Getman 2015 Clemson University

Heterogeneous Catalysis Of Aqueous Phase Reforming Of Glycerol With First Principle Calculations And Molecular Dynamics Simulations, Tianjun Xie, Rachel B. Getman

Chemical and Biomolecular Graduate Research Symposium

No abstract provided.


Conducting Polymer Microstructures And Composites For Supercapacitors, Kryssia P. Diaz-Orellana, Mark E. Roberts 2015 Clemson University

Conducting Polymer Microstructures And Composites For Supercapacitors, Kryssia P. Diaz-Orellana, Mark E. Roberts

Chemical and Biomolecular Graduate Research Symposium

To increase the performance of conducting polymer electrodes for supercapacitors by controlling polymer assembly, ion transport, electron transfer, and redox processes. The electrode morphology and electrochemical performance are studied.


Cellulose Nanofiber Composite Membranes For Water Purification, Nithinart Chitpong, Scott M. Husson 2015 Clemson University

Cellulose Nanofiber Composite Membranes For Water Purification, Nithinart Chitpong, Scott M. Husson

Chemical and Biomolecular Graduate Research Symposium

Global water demand continues to increase because of population growth, urbanization, and climate change. Since there are limited natural water resources, water purification systems play a critical societal role. Membrane technologies are used widely to improve water quality for beneficial use. Therefore, the development of new membranes is an active area of research in the water purification field.


Effect Of Co Adsorption And Coverage On Ethanol Production From Syngas, Anuradha Gundamaraju, Ming He, David A. Bruce 2015 Clemson University

Effect Of Co Adsorption And Coverage On Ethanol Production From Syngas, Anuradha Gundamaraju, Ming He, David A. Bruce

Chemical and Biomolecular Graduate Research Symposium

Concern over ever decreasing oil supplies, increasing levels of pollution and energy independence have been the primary driving forces behind significant efforts focused on the development of new technologies capable of increasing the production of alternative fuels. To-date, ethanol and to a lesser extent biodiesel have been the only alternative fuels or fuel additives to gain widespread use and be synthesized on a commercial scale. Currently, most of the World’s ethanol is produced from renewable biomass. The biomass feedstocks and fermentation broths used in ethanol production contain high amounts of water, and therefore, the energy efficiency of the process ...


Identification And Quantification Of Gaseous Organic Compounds Emitted From Biomass Burning Using Two-Dimensional Gas Chromatography–Time-Of-Flight Mass Spectrometry, Lindsay E. Hatch, Wentai Luo, James F. Pankow, Robert J. Yokelson, Chelsea E. Stockwell, Kelley Barsanti 2015 Portland State University

Identification And Quantification Of Gaseous Organic Compounds Emitted From Biomass Burning Using Two-Dimensional Gas Chromatography–Time-Of-Flight Mass Spectrometry, Lindsay E. Hatch, Wentai Luo, James F. Pankow, Robert J. Yokelson, Chelsea E. Stockwell, Kelley Barsanti

Civil and Environmental Engineering Faculty Publications and Presentations

The current understanding of secondary organic aerosol (SOA) formation within biomass burning (BB) plumes is limited by the incomplete identification and quantification of the non-methane organic compounds (NMOCs) emitted from such fires. Gaseous organic compounds were collected on sorbent cartridges during laboratory burns as part of the fourth Fire Lab at Missoula Experiment (FLAME- 4) and analyzed by two-dimensional gas chromatography– time-of-flight mass spectrometry (GC × GC–ToFMS). The sensitivity and resolving power of GC × GC–ToFMS allowed the acquisition of the most extensive data set of BB NMOCs to date, with measurements for 708 positively or tentatively identified compounds. Estimated ...


Title A Versatile Microparticle-Based Immunoaggregation Assay For Macromolecular Biomarker Detection And Quantification, Haiyan Wu, Yu Han, George G. Chase, Qiong Tang, Chen-Jung Lee, Bin Cao, Jiang Zhe, Gang Cheng 2015 University of Akron Main Campus

Title A Versatile Microparticle-Based Immunoaggregation Assay For Macromolecular Biomarker Detection And Quantification, Haiyan Wu, Yu Han, George G. Chase, Qiong Tang, Chen-Jung Lee, Bin Cao, Jiang Zhe, Gang Cheng

Department of Mechanical Engineering

The rapid, sensitive and low-cost detection of macromolecular biomarkers is critical in clinical diagnostics, environmental monitoring, research, etc. Conventional assay methods usually require bulky, expensive and designated instruments and relative long assay time. For hospitals and laboratories that lack immediate access to analytical instruments, fast and low-cost assay methods for the detection of macromolecular biomarkers are urgently needed. In this work, we developed a versatile microparticle (MP)-based immunoaggregation method for the detection and quantification of macromolecular biomarkers. Antibodies (Abs) were firstly conjugated to MP through streptavidin-biotin interaction; the addition of macromolecular biomarkers caused the aggregation of Ab-MPs, which were ...


Pervaporation: A Novel Process For Ethanol Separation Using Fermentation, Innovative Research Publications IRP India, Sanjay H. Amaley, R. S. Sapkal, V. S. Sapkal 2015 Innovative Research Publications

Pervaporation: A Novel Process For Ethanol Separation Using Fermentation, Innovative Research Publications Irp India, Sanjay H. Amaley, R. S. Sapkal, V. S. Sapkal

Innovative Research Publications IRP India

Various separation processes were used in the chemical industry along with their corresponding separating agents. The separation processes play a critical role in various chemical process industries, including the removal of impurities from raw materials, purification of products, separation of recycle streams, and removal of contaminants from air and effluents. Hence it can be intensified by integrating of existing and new unit operations, it offers a huge increase in efficiency and controllability, thereby saving a lot of raw materials and energy, reducing waste production, increasing yield and quality and improving production safety. This review, deals on the development and implementation ...


Joseph William Mellor (1869-1938) - - A Pioneer Ceramicist, Fathi Habashi 2015 Laval University, Quebec City, Canada

Joseph William Mellor (1869-1938) - - A Pioneer Ceramicist, Fathi Habashi

Fathi Habashi

Mellor is known to chemists as the author of the monumental work on General and Inorganic Chemistry but he is also a pioneer ceramicist. It was under his direction in 1920 that the British Refractories Research Association was formed which eventually became in 1948 the British Ceramic Research Association. Mellor spent most of his professional career at Stoke-on-Trent working on pottery.


Development And Study Of Measurement Methods For Jets And Bogging In A Fluidized Bed, Majid Hamidi 2015 The University of Western Ontario

Development And Study Of Measurement Methods For Jets And Bogging In A Fluidized Bed, Majid Hamidi

University of Western Ontario - Electronic Thesis and Dissertation Repository

In the Fluid Coking process, if the local concentration of liquid is very high, particles may stick together which can eventually result in process upset because of poor fluidization or even defluidization, a condition commonly known in industry as "bogging".

Using a capacitance sensor, the void distribution in a bed of coke particles can be visualized. The voidage fluctuations caused by gas bubbles have been shown to change dramatically as the bed becomes bogged. Therefore, capacitance sensors should be able to predict the bogging condition in fluid cokers.

The first part of the thesis focused on designing noiseless capacitance sensors ...


Cluster Fluid Dynamics In Down Flow Reactors: Experimental And Modeling Study, Angel Virgilio Lanza Soto 2015 The University of Western Ontario

Cluster Fluid Dynamics In Down Flow Reactors: Experimental And Modeling Study, Angel Virgilio Lanza Soto

University of Western Ontario - Electronic Thesis and Dissertation Repository

Gas–solid concurrent downers possess unique features when compared to other gas–solid systems. Establishing their fluid dynamic properties requires both experimental measurements of gas-solid flow properties and computational modeling.

Measuring gas-solid flow properties such as cluster solid concentrations, individual cluster slip velocities, and cluster sizes, involves the use of specialized optical equipment, as well as a rigorous data analysis methodology. In addition, the modeling of the fluid dynamics of gas-solid flows in downer units offers special challenges such as establishing a proper drag model, cluster configuration and sizes, sphericity, boundary conditions, among other issues.

In this PhD dissertation, the ...


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