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Filtering by: Subject Surface chemistry Remove constraint Subject: Surface chemistry Degree Field Chemical Engineering Remove constraint Degree Field: Chemical Engineering Resource Type Dissertation Remove constraint Resource Type: Dissertation

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  • Multi-Technique Characterizations of Natural and Biomimetic Adhesives

    Creator:
    Fowler, James E.
    Abstract:
    There have been many attempts to characterize and mimic natural fluid-based adhesive systems. However, very few of these studies have examined surface or interfacial interactions between adhesive and substrate. Furthermore, until now no study has used a combination of surface analytical and kinematic techniques to determine the precise chemical mechanisms...
    Resource Type:
    Dissertation
    Full Text:
    Between Ladybird Beetle Adhesive Foot Fluid and Varying Surface Chemistry Using Sum Frequency

  • Analyzing the Kinetics and Thermodynamics of Surface Reactions using Density Functional Theory

    Creator:
    Sprowl, Lynza H.
    Abstract:
    The interactions of chemical species with a solid surface play a role in many everyday applications such as heterogeneous catalysis, corrosion, and degradation reactions. Understanding the reaction kinetics and thermodynamics via rate constants and equilibrium constants, which require knowledge of the adsorbed species’ entropy, is essential for tuning these surface...
    Resource Type:
    Dissertation
    Full Text:
    received a Nobel Prize “for his discoveries and investigations in surface chemistry” [4], and Gerhard

  • Molecular origins of peptide entrapment in polyethylene oxide layers

    Creator:
    Wu, Xiangming
    Abstract:
    A more quantitative understanding of peptide entrapment and elution from otherwise protein-repellent polyethylene oxide (PEO) brush layers will provide direction for development of new strategies for drug storage and delivery. Here we describe criteria for peptide integration and structural change within the PEO brush, and discuss the reversibility of peptide...
    Resource Type:
    Dissertation
    Full Text:
    non-amphiphilic peptide was reversible. We also evaluated the effects of peptide surface density on

  • Macroscopic model for apparent protein adsorption equillibrium at hydrophobic solid-water interfaces

    Creator:
    Al-Malah, Kamal Issa Masoud
    Resource Type:
    Dissertation
    Full Text:
    protein at the interface, AP; the work of adhesion per unit area, W,; the minimum surface area cleared

  • Molecular origins of surfactant-mediated stabilization of protein

    Creator:
    Lee, Hyo Jin
    Abstract:
    Nonionic surfactants are commonly used to stabilize proteins during upstream and downstream processing and drug formulation. Surfactants stabilize the proteins through two major mechanisms: (i) their preferential location at nearby interfaces, in this way precluding protein adsorption; and/or (ii) their association with protein into "complexes" that prevent proteins from interacting...
    Resource Type:
    Dissertation
    Full Text:
    ]. 16 The extent of aggregation also depends upon the surface chemistry of the container in which