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Filtering by: Creator Muehlbauer, Jeffrey D. Remove constraint Creator: Muehlbauer, Jeffrey D. Degree Field Chemical Engineering Remove constraint Degree Field: Chemical Engineering

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  • Transient Microrheological Characterization of Biogels

    Creator:
    Mao, Yating
    Abstract:
    The Brownian motion of micron-scale particles reflects the viscoelastic response of the local environment of the medium. Tracking the thermal fluctuations of these particles is a measure of the rheology of the material at the microscopic scale. This technique is called passive microrheology. Microrheology has been developed to assess the...
    Resource Type:
    Masters Thesis
    Full Text:
    clusters show the long-time diffusive nature of the particle. (d) Trajectories of a particle that is caged

  • Thermodynamics of Laser-Assisted Solution Combustion Synthesis of Yttrium Oxide

    Creator:
    Dhas, Jeffrey A.
    Abstract:
    To assess the conversion and embedment of yttrium nitrate to yttrium oxide using selective laser melting, a thermodynamic approach for laser power and scan speed predictions on surface temperature, recoil pressure, and resulting track morphology window are employed. Inkjet printing is used to deposit the liquid film of yttrium nitrate...
    Resource Type:
    Honors College Thesis
    Full Text:
    Thermodynamics of Laser-Assisted Solution Combustion Synthesis of Yttrium Oxide By Jeffrey Arul Dhas

  • The Stability, Toxicity, and Reactivity of Zero Valent Iron Nanoparticles

    Creator:
    Bulovsky, Hannah G.
    Abstract:
    Zero valent iron nanoparticles effectively remediate groundwater contaminants due to their catalytic properties and enhanced surface area. However, these properties contribute to particle agglomeration, decreasing their effectiveness. In this study, we examined the effect of two stabilizing agents (gum arabic (GA) and sodium carboxymethyl cellulose (CMC)) on particle stability, toxicity,...
    Resource Type:
    Honors College Thesis
    Full Text:
    _____________________________________________________________________ Jeffrey A. Nason, Committee Member, representing Chemical, Biological, and Environmental

  • The effects of engineered coatings and natural organic matter on nanoparticle aggregation

    Creator:
    McDowell, Shannon A.
    Abstract:
    In order to better predict the aggregation state of nanomaterials, the factors that influence aggregation must be understood. The combined effects of natural and engineered coatings have been shown to factor into nanoparticle aggregation behavior in preliminary research. In this study, aggregation behaviors of gold nanoparticles with two different engineered...
    Resource Type:
    Masters Thesis
    Full Text:
    Abstract approved: Jeffrey A. Nason In order to better predict the aggregation state of

  • The effect of coagulation conditions on floc size distribution and morphology : implications for downstream treatment processes

    Creator:
    Maguire, Ian R.
    Abstract:
    Coagulation and flocculation are commonly used in drinking water treatment as a means of destabilizing and aggregating particles and promoting adsorption of dissolved organic carbon (DOC). In practice, jar tests are used to determine optimal conditions for the removal of turbidity and DOC. However, beyond the inferences that can be...
    Resource Type:
    Masters Thesis
    Full Text:
    : Implications for Downstream Treatment Processes. Abstract approved: Jeffrey A. Nason

  • The assessment of copper and zinc removal from highway stormwater runoff using Apatite II™

    Creator:
    Huang, Hsiao-Wen
    Abstract:
    Copper and zinc are heavy metals commonly present in highway stormwater runoff. Discharge of these metals to surface waters inhabited by sensitive aquatic species including threatened and endangered salmonids has necessitated the need for improved treatment techniques. Although copper is of the greater toxicological concern, zinc is often present at...
    Resource Type:
    Masters Thesis
    Full Text:
    Abstract approved: Jeffrey A. Nason Copper and zinc are heavy metals commonly present in highway

  • Techno-economic analysis of extraction curcumin from turmeric

    Creator:
    Kunta, Naveen
    Abstract:
    Curcumin is a yellow colored bioactive pigment present in the spice turmeric (Curcuma longa). It has been identified with antioxidant, anti-inflammatory, anticancer, antibacterial, antirheumatic, antidiabetic and antiviral properties. It is extensively used in nutraceutical, food and cosmetics industry. Fueled by its potential uses in research community and rise in awareness...
    Resource Type:
    Masters Thesis
    Full Text:
    anti-cancer properties of curcumin. Dr. Bharat B. Aggarwal of M. D. Anderson cancer center had to

  • Synthesis, surface treatment, and characterization of copper indium sulfide quantum dots

    Creator:
    Alemu, Yagenetfere A.
    Abstract:
    The need for less toxic quantum dots (QDs) has led to a significant number of investigations related to copper indium sulfide (CIS) QDs. Lower toxicity and broad band absorbance width makes CIS QDs appealing for light emitting diodes (LEDs), lasers, sensors, bio-imaging, solar cells, and computing. The optical and electronic...
    Resource Type:
    Masters Thesis
    Full Text:
    methanol, and centrifuging several times, and (D) a CIS QDs in a DDT ligand. The photograph was taken with

  • Synthesis and characterization of zero valent iron nanoparticles

    Creator:
    Coussens, Nathaniel J.
    Abstract:
    Synthetic methods for the preparation of magnetic nanocomposites with improved high frequency (into the GHz range) performance over conventional magnetic materials were examined. The most successful work involved synthesis of nanocrystalline zero valent iron particles (nc-Fe) through a reverse micelle method. Here, aqueous Fe(II) solution micelles formed using cetyl trimethylammonium...
    Resource Type:
    Masters Thesis
    Full Text:
    ........................................................................... 67 Appendix D: XRD Peaks

  • SwannBritanyM2017.pdf

    Creator:
    Swann, Britany and Swann, Britany M.
    Abstract:
    Additive manufacturing and 3D printing have become household names as both hobbyistsand industrial manufacturers utilize fast, inexpensive prototyping and production of functionalparts. Additive manufacturing is being revolutionized with 3D printers such as theMulti Jet Fusion 3D from HP, Inc., where each volume pixel, or voxel, can be independentlyfunctionalized. Voxel-by-voxel printing...
    Resource Type:
    Masters Thesis
    Full Text:
    define part geometry and properties. (d) Detailing agents are applied to fine-tune surface