Index Catalog // ScholarsArchive@OSU

Characterization of Escherichia coli double-strand uracil-DNA glycosylase and analysis of uracil-initiated base excision DNA repair

Creator:: Sung, Jung-Suk
Abstract:: Escherichia coli double-strand uracil-DNA glycosylase (Dug) was purified to apparent homogeneity from bacteria that were defective in uracil-DNA glycosylase (Ung). After cloning the dug gene, recombinant Dug was overexpressed, purified, and characterized with respect to activity, substrate specificity, product DNA binding, and mechanism of action. Purified Dug excised both uracil...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE THESIS OF Tung-Suk Sung for the degree of

Development of solution-based reaction processes for micro- and nano-structured semiconductors

Creator:: Lee, Doo-Hyoung
Abstract:: The focus of this study is to develop a general and low-cost solution-based process to fabricate micro- and nano-structured semiconductors that are suitable for electronics. This process uses simple metal halide precursors dissolved in a solvent (organic or aqueous) and is capable of forming uniform and continuous thin films via...
Resource Type:: Dissertation
Full Text:: -Structured Semiconductors Abstract approved: Chih-Hung Chang The focus of this

Effect of cosputtered catalyst on growth and alignment of carbon nanotubes by plasma enhanced chemical vapor deposition

Creator:: Gunderson, Eric P.
Abstract:: The effect of cosputtered catalyst on growth and alignment of carbon nanotubes (CNTs) grown by plasma enhanced chemical vapor deposition (PECVD) was investigated. Aligned CNTs were observed using a cosputtered catalytic metal deposited directly on boro-aluminosilicate glass. Catalytic metal alloys were sputtered directly onto the substrate using magnetron sputtering. Deposition...
Resource Type:: Masters Thesis

Growth and characterization of zinc ferrite thin films for high frequency applications

Creator:: Hu, Jiqing
Abstract:: Ferrites have been used for various high frequency applications as bulk materials. These applications, however, are limited to large dimension devices. In this thesis, thin film ferrites were deposited from a low temperature solution-based deposition process that is suitable for micro-scale high frequency applications. The low temperature nature of this...
Resource Type:: Dissertation
Full Text:: Zinc Ferrite Thin Films for High Frequency Applications Abstract approved: Chih-Hung

Fabrication and application of polymer based microfluidic devices

Creator:: Koesdjojo, Myra T.
Abstract:: The concept of reducing laboratory operations in scale such that they fit on a microfluidic chip has been met with great enthusiasm. Lab-on-a-chip devices promise to be cost effective to operate due to reduced reagent consumption, have the potential to offer shorter analysis times due to their short path lengths,...
Resource Type:: Dissertation
Full Text:: to Dr. Chih-hung Chang, Dr. Claudia Maier, Dr. David Hackleman, and Dr. Michael Penner, for their

Systematics of the genus Torrubiella

Creator:: Johnson, Desiree M.
Abstract:: Torrubiella is a genus of entomopathogenic fungi in the Clavicipitaceae (Ascomycota). Species of the genus produce superficial perithecia on a loose mat of hyphae that forms directly on the host. The genus is estimated to contain about 70 species. Torrubiella is hypothesized to be a close relative of Cordyceps because...
Resource Type:: Masters Thesis
Full Text:: . I am especially indebted to Gi-Ho Sung, who was central to my research. Without him, I would not

Layout dependent and bias independent scalable substrate model for RF MOSFETs

Creator:: Suravarapu, Ravikanth
Abstract:: The dependence of the substrate resistance, R[subscript sub], for MOS transistor RF modeling on transistor biasing and layout is studied from device simulations and measurements. Though R[subscript sub] is found to be bias dependent, the error incurred by assuming a constant value equal to the DC resistance is not significant....
Resource Type:: Masters Thesis

Spontaneous and enviornmental [sic] mutagenesis in mismatch repair deficient cells

Creator:: Shin-Darlak, Chi Y.
Abstract:: DNA damage, if not repaired, can become a mutation. Mutation accumulation is associated with initiation and progression of tumorigenesis. DNA mismatch repair (MMR) is required for maintaining genetic stability by repairing replication errors. Biochemical studies have shown that MMR also recognizes mismatch-causing DNA lesions, suggesting the role of MMR in...
Resource Type:: Dissertation

Mismatch repair in plants : identification and characterization of Arabidopsis thaliana MutS homolog proteins

Creator:: Culligan, Kevin M.
Resource Type:: Dissertation

Biochemical characterization and mutational analysis of human uracil-DNA glycosylase

Creator:: Chen, Cheng-Yao
Abstract:: PCR-based codon-specific random mutagenesis and site-specific mutagenesis were performed to construct a library of 18 amino acid changes at Arg276 in the conserved leucine-loop of the core catalytic domain of human uracil-DNA glycosylase (UNG). Each Arg276 mutant was then overproduced in E. coli cells and purified to apparent homogeneity by...
Resource Type:: Dissertation

ScholarsArchive@OSU

Characterization of Escherichia coli double-strand uracil-DNA glycosylase and analysis of uracil-initiated base excision DNA repair

Development of solution-based reaction processes for micro- and nano-structured semiconductors

Effect of cosputtered catalyst on growth and alignment of carbon nanotubes by plasma enhanced chemical vapor deposition

Growth and characterization of zinc ferrite thin films for high frequency applications

Fabrication and application of polymer based microfluidic devices

Systematics of the genus Torrubiella

Layout dependent and bias independent scalable substrate model for RF MOSFETs

Spontaneous and enviornmental [sic] mutagenesis in mismatch repair deficient cells

Mismatch repair in plants : identification and characterization of Arabidopsis thaliana MutS homolog proteins

Biochemical characterization and mutational analysis of human uracil-DNA glycosylase

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