Index Catalog // ScholarsArchive@OSU

The uptake, transformation, and physiological response of the marine red macroalga Portieria hornemannii to the nitroaromatic explosive 2,4,6-trinitrotoluene (TNT)

Creator:: Cruz-Uribe, Octavio T.
Abstract:: The capability of the marine red macroalga Portieria hornemannii to remove and detoxify the nitroaromatic explosive 2,4,6-trinitrotoluene (TNT) in a seawater environment was evaluated using an axenic microplantlet suspension culture system. Microplantlets were challenged with TNT dissolved in seawater at concentrations of 1 to 50 mg L-1 in well-mixed photobioreactors...
Resource Type:: Dissertation
Full Text:: -trinitrotoluene (TNT). Abstract approved: Gregory L. Rorrer The capability of the marine red

The mobilization of heavy metals from contaminated soil using low molecular weight organic acids

Creator:: Kang, Sun Ki
Abstract:: More than 30,000 potential Superfund sites have been identified. Heavy metals are contaminants at many of these Superfund sites. The average cost of cleanup a single-typical Superfund site currently stands at $20 million, and it is expected that the cost may escalate to $50 million within the next decade. Problems...
Resource Type:: Dissertation

Factors influencing halogenated monoterpene production in microplantlets derived from the red macroalga Ochtodes secundiramea

Creator:: Polzin, Jason
Abstract:: Halogenated monoterpene production by the red macroalga Octhodes secundiramea was studied-under different levels of nutrient, bromide, vanadium and light delivery. The key products formed were identified as myrcene, betaelemene, the Z and E isomers of l0-bromomyrcene, 3-chloro-10E-bromomyrcene, Apakaocthodene A, and isomers of chloromyrcene and dibromomyrcene. The proposed pathway begins with...
Resource Type:: Dissertation
Full Text:: Abstract approved: Gregory L. Rorrer Halogenated monoterpene production by the red macroalga Oct hodes

Studies of Chitin Nanofiber Production and Photoluminescent Biosilica from Diatoms with and without Germanium

Creator:: LeDuff, Paul A.
Abstract:: There is significant interest in harnessing the biosynthetic capacities of photosynthetic diatom microalgae for the production of unique bioinspired nanomaterials. Specifically, this research focuses on understanding the photoluminescent properties of diatom biosilica and β-chitin nanofiber production in diatoms. Diatoms are single-celled microalgae that possess intricately patterned biosilica shells called, frustules....
Resource Type:: Dissertation
Full Text:: : ______________________________________________________ Gregory L. Rorrer There is significant interest in harnessing the biosynthetic

Nutrient Addition Strategies for the Marine Diatom Cyclotella sp to Control Cell, Lipid, and Chitin Formation.

Creator:: Chiriboga Novillo, Omar Guillermo
Abstract:: Marine diatoms are unicellular photosynthetic organisms that produce unique nanomaterials, energy dense lipid-molecules, and specialty carbohydrate molecules that can be all extracted from a single microorganism. The centric marine diatom Cyclotella sp. was used as a model organism for cultivation in a biorefinery system, where multiple co-products can be harvested...
Resource Type:: Dissertation
Full Text:: Gregory L. Rorrer Marine diatoms are unicellular photosynthetic organisms that produce unique

Biomolecule detection by amplified photoluminescence of germanium doped diatom biosilica

Creator:: Gale, Debra K.
Abstract:: There is significant interest in the fabrication of nano- and micro-structured silica with spatially ordered features, which exhibit enhanced optoelectronic properties with application to the next generation of display devices, semiconductors, and sensors. Currents methods of fabrication employ top down processes which use extremes of temperature, pressure, and power. There...
Resource Type:: Dissertation
Full Text:: Gregory L. Rorrer There is significant interest in the fabrication of nano- and micro-structured

Biological insertion of nanostructured germanium and titanium oxides into diatom biosilica

Creator:: Jeffryes, Clayton S.
Abstract:: There is significant interest in titanium oxide and germanium-silicon oxide nanocomposites for optoelectronic, photocatalytic, and solar cell applications. The ability of the marine diatom Pinnularia sp. to uptake soluble metal oxides from cell culture medium, and incorporate them into the micro- and nano-structure of their amorphous silica cell walls, called...
Resource Type:: Dissertation
Full Text:: Gregory L. Rorrer There is significant interest in titanium oxide and germanium-silicon oxide

Removal of cadmium ions by porous chitosan beads : effects of acylation & crosslinking on material properties and adsorption isotherms

Creator:: Hsien, Tzu-Yang
Resource Type:: Dissertation
Full Text:: Isotherms Abstract approved: Gregory L. Rorrer Chitosan is nature's most abundant biopolymer next to

Photobioreactor cultivation of the cell and tissue cultures derived from marine red macroalga Agardhiella subulata

Creator:: Huang, Yao-ming
Resource Type:: Dissertation
Full Text:: Redacted for Privacy ACKNOWLEDGMENTS First, I'd like to thank my major professor, Dr. Gregory Rorrer

Conversion of biomass constituents to hydrogen-rich gas by supercritical water in a microchannel reactor

Creator:: Goodwin, Aaron K.
Abstract:: Microreactors offer high rates of heat transfer able to intensify highly endothermic biomass reforming reactions in supercritical water. In this study, two continuous flow microreactor configurations were used to gasify biomass constituents in supercritical water. The first reactor configuration was a micro diameter stainless steel or Hastelloy tube (508 µm...
Resource Type:: Dissertation
Full Text:: : _______________________________________________________________________ Gregory L. Rorrer Microreactors offer high rates of heat transfer able to intensify highly

ScholarsArchive@OSU

The uptake, transformation, and physiological response of the marine red macroalga Portieria hornemannii to the nitroaromatic explosive 2,4,6-trinitrotoluene (TNT)

The mobilization of heavy metals from contaminated soil using low molecular weight organic acids

Factors influencing halogenated monoterpene production in microplantlets derived from the red macroalga Ochtodes secundiramea

Studies of Chitin Nanofiber Production and Photoluminescent Biosilica from Diatoms with and without Germanium

Nutrient Addition Strategies for the Marine Diatom Cyclotella sp to Control Cell, Lipid, and Chitin Formation.

Biomolecule detection by amplified photoluminescence of germanium doped diatom biosilica

Biological insertion of nanostructured germanium and titanium oxides into diatom biosilica

Removal of cadmium ions by porous chitosan beads : effects of acylation & crosslinking on material properties and adsorption isotherms

Photobioreactor cultivation of the cell and tissue cultures derived from marine red macroalga Agardhiella subulata

Conversion of biomass constituents to hydrogen-rich gas by supercritical water in a microchannel reactor

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