Index Catalog // ScholarsArchive@OSU

Toxicity of methyl bromide to fungi inhabiting Dahurian larch wood

Creator:: Rhatigan, Ronald G.
Abstract:: Concerns over the possibility of exotic pest introductions from eastern Russia to the West Coast of the United States due to proposed log imports raises the question of the effectiveness of possible mitigation measures. Toxicity of methyl bromide to representative pathogenic fungi was tested by exposing Armillaria ostoyae, Heterobasidion annosum,...
Resource Type:: Masters Thesis

Assessing the Impacts of Size, Structure, and Surface Chemistry on the Toxicity of Two High Production Organic Nanomaterials using the Embryonic Zebrafish Model

Creator:: Meredith, Ailcea N.
Abstract:: The low risk and sustainable implementation of nanotechnology requires understanding how nanomaterial physicochemical properties influence their toxicity. Major drivers of toxicity need to be avoided while maximizing product efficacy so nanomaterials can be produced to best serve their applications and be of low risk when intentionally or unintentionally released into...
Resource Type:: Masters Thesis
Full Text:: (Dooley 2000). Information gathered from toxicity testing with zebrafish helps to inform both human and

Process segmentation and modelling applied to time series featuring the response of biological materials to toxic agents

Creator:: Teng, Angela
Abstract:: The detection of biological and chemical toxins has become one of the main concerns in environmental and military fields. In this framework, the department of Microbiology and Biochemistry at Oregon State University has discovered that fish living cells are promising indicators of the presence of a wide range of toxins....
Resource Type:: Masters Thesis

Toxicity of Fungal Pigments from Chlorociboria spp. and Scytalidium spp.

Creator:: Almurshidi, Badria H.
Abstract:: Commercial methodologies for producing fungal pigments are of worldwide interest due to the desire to move away from synthetic dyes. Chlorociboria species and Scytalidium species have been reported to produce sufficient yields of pigments for commercial production and have attracted special attention because of their use in spalted wood applications....
Resource Type:: Masters Thesis
Full Text:: models for ecotoxicology and acute toxicity testing although advancements have been made in the field

Size and surface area dependent toxicity of silver nanoparticles in zebrafish embryos (Danio rerio)

Creator:: Tuttle, George R.
Abstract:: Many studies addressing the toxicity of silver nanomaterials have found that smaller sized silver nanoparticles are usually more toxic to organisms and in cell culture than particles of larger sizes yet it is not entirely clear why. We investigated the size dependent toxicity of silver nanoparticles by measuring the response...
Resource Type:: Masters Thesis
Full Text:: Size and Surface Area Dependent Toxicity of Silver

In vivo assessment of nanomaterial-induced toxicity using embryonic zebrafish

Creator:: Usenko, Crystal Y.
Abstract:: Due to their unique physical, chemical, and magnetic properties, nanomaterials have great potential for industrial development. There is a pressing need to develop rapid whole animal-based testing assays to assess the potential toxicity of engineered nanomaterials. To meet this challenge the embryonic zebrafish model was employed to determine the toxicity...
Resource Type:: Masters Thesis
Full Text:: nanomaterials. To establish the zebrafish as a rapid assay for testing nanomaterial toxicity, three carbon

Effects of silver ions and nanoparticles on suspended cells and biofilms of Nitrosomonas europaea

Creator:: Barker, Leila Kelly
Abstract:: Silver nanoparticles are increasingly being incorporated into consumer products due to their broad-spectrum antimicrobial properties. The resulting influx of silver nanoparticles into wastewater may pose a threat to bacteria involved in biological wastewater treatment. Ammonia-oxidizing bacteria, which convert ammonia to nitrite in the first step of nitrification, are highly sensitive...
Resource Type:: Masters Thesis
Full Text:: these observations. Toxicity of silver nanoparticles was found to stem from silver ion release, which

Immune responses of juvenile chinook salmon (Oncorhynchus tshawytscha) to p,p-̓DDE and tributyltin

Creator:: Misumi, Ichiro
Abstract:: In this thesis, we examined the effects of the exposures to anthropogenic pollutants on the fish, primarily juvenile chinook salmon, immune system using newly and recently developed immune assays. In addition, we developed a new assay for measuring immunocompetence of fish. In the first chapter, the Alamar Blue assay was...
Resource Type:: Masters Thesis
Full Text:: granulocytes because they overlap in size (Figure 1.2 d). TOXICITY OF ALAMAR BLUE Following dilution of cell

The effect of chronic exposure of chinook salmon to benzo(a)pyrene and cortisol of CYP1A1 induction and susceptibility to a microsporidian parasite, Loma salmonae

Creator:: Marie, Amarisa
Abstract:: Wild populations of fish are faced with a multitude of stressors, which may include human interaction, toxins, and disease. Benzo(a)pyrene (BaP), a known carcinogen and immunotoxin, has been reported in the stomach contents of juvenile chinook salmon, Oncorhynchus tshawytscha, in urban waterways. We investigated the impact of chronic dietary exposure...
Resource Type:: Masters Thesis
Full Text:: explanation for no high BaP dose effect on disease susceptibility may be due to toxicity of BaP directly on

Transformation of Phenanthrene by Mycobacterium sp. ELW1 and the Formation of Toxic Metabolites

Creator:: Schrlau, Jill E.
Abstract:: The ability of Mycobacterium sp. ELW1, a novel microbe capable of alkene oxidation, to co-metabolize phenanthrene (PHE) was studied. ELW1 was able to completely co-metabolize PHE, at different concentrations below its water solubility limit, in an aqueous environment. The alkene monooxygenases in ELW1, used to initiate oxidation of PHE, were...
Resource Type:: Masters Thesis
Full Text:: tested for toxicity using embryonic zebrafish. The embryonic zebrafish were exposed to OHPHE

ScholarsArchive@OSU

Toxicity of methyl bromide to fungi inhabiting Dahurian larch wood

Assessing the Impacts of Size, Structure, and Surface Chemistry on the Toxicity of Two High Production Organic Nanomaterials using the Embryonic Zebrafish Model

Process segmentation and modelling applied to time series featuring the response of biological materials to toxic agents

Toxicity of Fungal Pigments from Chlorociboria spp. and Scytalidium spp.

Size and surface area dependent toxicity of silver nanoparticles in zebrafish embryos (Danio rerio)

In vivo assessment of nanomaterial-induced toxicity using embryonic zebrafish

Effects of silver ions and nanoparticles on suspended cells and biofilms of Nitrosomonas europaea

Immune responses of juvenile chinook salmon (Oncorhynchus tshawytscha) to p,p-̓DDE and tributyltin

The effect of chronic exposure of chinook salmon to benzo(a)pyrene and cortisol of CYP1A1 induction and susceptibility to a microsporidian parasite, Loma salmonae

Transformation of Phenanthrene by Mycobacterium sp. ELW1 and the Formation of Toxic Metabolites

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