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  • 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...
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    Dissertation
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    peptide S-WLBU2, and the non-amphiphilic homopolymer poly-L-arginine (PLR). Circular dichroism (CD) was

  • Dependence of secondary structure of biopolymers on environment : a circular dichroism study of equivocal amino acid sequences in proteins and of left-handed DNA

    Creator:
    Zhong, Lingxiu
    Resource Type:
    Dissertation
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    environment : a circular dichroism study of equivocal amino acid sequences in proteins and of left-handed DNA

  • Structural requirements for adenovirus DNA replication

    Creator:
    Hu, Chin-Hwa
    Abstract:
    The adenovirus replication origins reside in the inverted terminal repetition (ITR) sequences. Replication proceeds unidirectionally by a strand-displacement mechanism from either or both origins to produce duplex daughter DNA plus a displaced parental strand. The displaced strand can be duplicated by two different routes. The cis pathway involves intramolecular hybridization...
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    Dissertation
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    transfected cells using the plasmid mini-chromosome model system. Plasmids with origins embedded in circular

  • Binding of bacterial lipopolysaccharide by the cationic amphiphilic peptide WLBU2 at interfaces

    Creator:
    Ryder, Matthew P.
    Abstract:
    Passage of blood through a sorbent device for removal of bacteria and endotoxin by specific binding with immobilized, membrane-active, bactericidal peptides holds promise for treating severe blood infections. Peptide insertion in the target membrane and stable binding is desirable, while membrane disruption and release of degradation products to the circulating...
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    Dissertation
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    PmB. Circular dichroism spectra confirmed that WLBU2, which shows disordered structure in aqueous

  • Heat transfer in magnetic fluids at low Reynolds number

    Creator:
    Choi, Sang Hyouk
    Abstract:
    This study was concerned with the flow of a magnetic self-propelled ferrohydrodynamic fluid in a horizontal circular tube subjected to axially varying temperature and magnetic field. The first phase of the study involved the analytical solution to the governing equations for the velocity and temperature profiles within the fully developed...
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    Dissertation
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    magnetic self- propelled ferrohydrodynamic fluid in a horizontal circular tube sub- jected to axially

  • Nonlinear diffraction theory by an eigenfunction expansion of the Green's function

    Creator:
    Chen, Min-Chu
    Abstract:
    A second-order nonlinear diffraction theory is developed for a large diameter circular cylinder under the action of surface gravity waves of finite amplitude in water of-finite depth. Boundary value problems are derived by using a perturbation expansion and the solutions for the diffracted waves are given in terms of Fredholm...
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    Dissertation
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    . Hudspeth A second-order nonlinear diffraction theory is developed for a large diameter circular cylinder

  • Pool absorption of gas entrained by a plunging liquid jet

    Creator:
    Hauxwell, Gerald Dean
    Abstract:
    A mathematical model was developed to predict the absorption rate of a slightly soluble gas entrained by a plunging liquid jet. The single parameter of the model, the transfer factor, TF, was defined as the summation of the product of the mass transfer coefficient and interfacial area over all the...
    Resource Type:
    Dissertation
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    pool of water. Circular, coherent jet streams varying from 1.4 to 6. 8 mm OD at flow rates equivalent

  • Prediction and Measurement of Polycyclic Aromatic Hydrocarbons (PAHs) Transformation Products in the Environment.

    Creator:
    Titaley, Ivan A.
    Abstract:
    Polycyclic aromatic hydrocarbons (PAHs) are a group of environmental contaminants consisting of fused benzene rings. Parent-PAHs, methylated-PAHs (MPAHs), and PAHs with molecular weight of 302 a.m.u (MW302-PAHs) are considered as unsubstituted-PAHs. These unsubstituted-PAHs undergo transformation reactions resulting in the formation of PAH-transformation products (PAH-TPs), or substituted-PAHs, including nitrated-, oxygenated-, and...
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    Dissertation
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    with molecular weight of 302 a.m.u (MW302-PAHs) are considered as unsubstituted-PAHs. These

  • Finite element analysis of culverts under embankments with time dependent and non-linear properties

    Creator:
    Lertlaksana, Voravit
    Abstract:
    A computer program was developed for analyzing culverts under earth embankments constructed of compacted cohesive soil using the finite element method. The culvert-embankment system is represented as a two-dimensional plane strain problem. The plane of investigation is taken normal to the culvert axis. The soil-culvert interface is assumed to be...
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    Dissertation
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    program can be used to analyze circular or ellip- tical culverts under homogeneous embankments placed on

  • Natural products from tropical and temperate marine algae

    Creator:
    Bernart, Matthew W.
    Abstract:
    Following surveys of seaweeds in Oregon and the Caribbean, four algal species were selected for study on the basis of their crude extract biological activity or thin-layer chromatographic characteristics. Extracts were fractionated by normal phase chromatography, including high performance liquid chromatography (HPLC). Derivatives (methyl esters, acetates, and benzoates) of natural...
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    Dissertation
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    rotations, mass spectra, and circular dichroic spectroscopy were also employed. The Puerto Rican red alga