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Biomechanical Comparison Of Three Methods For Internal Fixation Of Femoral Neck Fractures In Dogs, Stephen Cory Fisher
Biomechanical Comparison Of Three Methods For Internal Fixation Of Femoral Neck Fractures In Dogs, Stephen Cory Fisher
Theses and Dissertations
Research evaluating the surgical repair of femoral neck fractures in dogs is limited. This study evaluated the in vitro mechanical properties of canine femoral neck fractures stabilized with two medium Orthofix® Partially-threaded Kirschner Wires (Orthofix pins), a 2.7 mm cortical bone screw placed in lag fashion with anti-rotational Kirschner wire (K-wire), and three 1.1 mm divergent K-wires. This study compared the mean compressive pressure, compressive force and area of compression created by the insertion the Orthofix pins and a 2.7 mm cortical bone screw placed in lag fashion. Monotonic testing was used to quantify mechanical strength and pressure sensitive film …
Characterization Of Tissue Mimicking Materials For Testing Of Microwave Medical Devices, Mary Virginia Dancsisin
Characterization Of Tissue Mimicking Materials For Testing Of Microwave Medical Devices, Mary Virginia Dancsisin
Theses and Dissertations
The driving force behind this thesis was the need for developing tissue mimicking materials that can mimic the dielectric properties of various biological soft tissues to aid in the development and testing of electromagnetic medical devices. Materials that can mimic the dielectric properties of human skin, adipose, muscle, malignant and healthy fibroglandular tissue, liver, pancreas, and kidney within the frequency range of 500 MHz to 20 GHz have been characterized and tested. The tissue mimicking materials are used to construct biological phantoms for studies that involve the investigation of wireless medical telemetry and a microwave breast cancer detection device.
Classes Of Reaction Diffusion Equations With Nonlinear Boundary Conditions, Jerome Goddard
Classes Of Reaction Diffusion Equations With Nonlinear Boundary Conditions, Jerome Goddard
Theses and Dissertations
We study positive solutions to classes of steady state reaction diffusion equations that arise naturally in applications. In particular, we study models arising from population dynamics and combustion theory. The main focus of this dissertation is the mathematical analysis of a challenging new class of problems when a certain nonlinear boundary condition is satisfied. In particular, we establish existence and multiplicity results by making use of the Quadrature method, the method of sub-super solutions, and degree theory. The results in this dissertation provide a significant contribution towards the analysis of elliptic boundary value problems with nonlinear boundary conditions.
Effect Of Strain Cross, Gender, And Sodium Chloride Concentrations On Broiler Meat Quality, Keyla Lopez
Effect Of Strain Cross, Gender, And Sodium Chloride Concentrations On Broiler Meat Quality, Keyla Lopez
Theses and Dissertations
Effects of gender and strain cross on carcass characteristics, meat quality and sensory acceptability were studied. Strains consisted of a commercially available strain (Strain A), and a strain genetically selected to maximize breast yield currently in the test phase (Strain B). Broilers varying in gender and strain cross had similar compositional characteristics; all treatments yielded high quality breast and thigh meat and did not differ in sensory acceptability. Effect of salt concentrations on yields, instrumental quality, and sensory acceptability of broiler breast meat was determined. Breast fillets were vacuum-tumbled with different concentrations (0, 0.25, 0.50, 0.75, 1.00, 1.25 and 1.50%) …
The Effect Of Dietary Changes On Microbial Populations Within The Gastrointestinal Tract Of The Giant Panda (Ailuropoda Melanoleuca), Candace Lareine Williams
The Effect Of Dietary Changes On Microbial Populations Within The Gastrointestinal Tract Of The Giant Panda (Ailuropoda Melanoleuca), Candace Lareine Williams
Theses and Dissertations
Both in-situ and ex-situ giant pandas (Ailuropoda melanoleuca), display shifts in bamboo species and part preference throughout the year. The effects of this shifting preference on gastrointestinal (GIT) microbiota were observed using traditional culturing methods to characterize normal GIT microflora from fecal samples and behavioral feeding data of adult male and female pandas over a fourteen-month period. Linear and quadratic fits were used to determine any significant relationships between the time of year and part preference on the GIT microflora (P<0.05). Significant values for time of year were observed with the linear fit in total aerobes (P-value=0.0368), streptococci (P-value=0.0120), and lactobacilli (P-value=0.0166) and quadratic fits in streptococci (P-value=0.0382) and Bacteroides spp. (P-value=0.0134) at á=0.05. Significant linear relationships were observed with part preference and lactobacilli and Bacteroides spp., P-values of 0.0028 and 0.0030, respectively, indicating that part preference and time of year may affect the flux of panda GIT microflora.
The Effects Of Glycine-Arginine-Alpha-Ketoisocaporic Acid Calcium On Maximum Strength And Muscular Endurance, Mareio Cortez Harris
The Effects Of Glycine-Arginine-Alpha-Ketoisocaporic Acid Calcium On Maximum Strength And Muscular Endurance, Mareio Cortez Harris
Theses and Dissertations
Glycine-arginine-alpha-ketoisocaporic acid calcium (GAKIC) is a product advertised to increase muscular endurance during exercise via metabolic intervention. Purpose: The purpose of this study was to determine the effect of GAKIC ingestion on maximum strength and muscular endurance. Methods: Utilizing a double-blinded, crossover design, participants completed an upper and lower body resistance exercise protocol once using 11.2gs GAKIC, and the other with a placebo. Results: An increase in maximum strength was observed in the 1RM portion of the lower body protocol phase with statistical trends in the lower body TLV portion of testing. No significant differences were found in upper body …
Perceptions And Utilization Of Riparian Forest Buffers By Farming Interest Located In The Big Sunflower Watershed, Hall Royal Roberts
Perceptions And Utilization Of Riparian Forest Buffers By Farming Interest Located In The Big Sunflower Watershed, Hall Royal Roberts
Theses and Dissertations
The field of Landscape Architecture can further develop a niche for the design of sustainable productive landscapes. This study attempts to understand a major stakeholders’ perceptions and use of riparian buffers and other conservation practices for water quality in an agricultural watershed of Mississippi. A survey was distributed to agricultural producers in the Big Sunflower Watershed of the MS Delta. The survey informs the interested parties of producers’ perceptions and uses of riparian forested buffers, perceptions and uses of conservation practices that restore water quality, perceptions of their environment, perceptions of surface water quality, enrollment of governmental incentive programs, and …
Planting Date And Fertilizer Effects On Vegetable And Cut Flower Production In High Tunnels In Mississippi, Yan Zhao
Theses and Dissertations
High tunnels have been used for many years worldwide. However, there has been limited research about use of high tunnel technology in the southeastern United States and its popularity has recently increased in Mississippi. A planting date study of 'Roma'' tomato, 'Legend' tomato, 'Ichiban' eggplant, 'Sweet Banana' pepper, ‘Benary’s Giant’ zinnia and ‘Potomac Red’ snapdragon was conducted in spring 2010 in three high tunnels in Starkville, Mississippi. Results showed for most cultivars (tomatoes, eggplant and pepper) a 12 Mar. 2010 planting date did not differ in marketable yield from planting on 2 Apr. 2010. In 2011, a fertilizer study on …
Disturbance And Its Effects On Archaeological Significance And Integrity, Jason Alan Kennedy
Disturbance And Its Effects On Archaeological Significance And Integrity, Jason Alan Kennedy
Theses and Dissertations
Significance and integrity are key concepts for archaeology, and how they are judged is determined by an archaeologist’s perceptions of disturbance. This thesis explicitly considers these concepts and how they relate to evolutionary theory and National Register eligibility. A site with known disturbance was chosen to determine whether it could be judged significant assuming that there was no disturbance. Controlled surface collection, magnetometer survey, excavation and landowner interview data were used to determine whether what made the site significant had been lost due to disturbance. The results indicate that the co-mingling of occupations in the plow zone normally would have …
Development Of Computational Tools And Resources For Systems Biology Of Bacterial Pathogens, Ranjit Kumar
Development Of Computational Tools And Resources For Systems Biology Of Bacterial Pathogens, Ranjit Kumar
Theses and Dissertations
Bacterial pathogens are a major cause of diseases in human, agricultural plants and farm animals. Even after decades of research they remain a challenge to health care as they are known to rapidly evolve and develop resistance to the existing drugs. Systems biology is an emerging area of research where all of the components of the system, their interactions, and the dynamics can be studied in a comprehensive, quantitative, and integrative fashion to generate predictive models. When applied to bacterial pathogenesis, systems biology approaches will help identify potential novel molecular targets for drug discovery. A pre-requisite for conducting systems analysis …
Effects Of In-Situ Biosparging On Pentachlorophenol (Pcp) Degradation And Bacterial Communities In Pcp, Carrlet Elizabeth Stokes
Effects Of In-Situ Biosparging On Pentachlorophenol (Pcp) Degradation And Bacterial Communities In Pcp, Carrlet Elizabeth Stokes
Theses and Dissertations
This study examined the effect of in-situ biosparging on pentachlorophenol (PCP) degradation and bacterial communities in PCP contaminated groundwater. Bacteria were identified by sequencing the 16s rDNA fragment from DNA extracted from groundwater cultures and comparing those sequences to a database using a basic local alignment search tool, BLAST. The PCP-degraders Burkholderia cepacia and Flavobacterium (Sphingobium) chlorophenolicum were identified in multiple wells, as were the 4-chlorophenol degrader Herbaspirillum sp., and the common soil bacteria Pseudomonas sp., Aquaspirillum sp., and Rhodocista sp., among others. Numerous bacterial samples also appeared in the results as “uncultured”. Bacterial community changes were observed using terminal …
Epigenetic Regulations In Cell Wall Degradation And Regeneration In Oryza Sativa, Feng Tan
Epigenetic Regulations In Cell Wall Degradation And Regeneration In Oryza Sativa, Feng Tan
Theses and Dissertations
It is well known that chromatin components are key players in establishing and maintaining spatial and temporal gene expression in plants, however, little is known about the epigenetic regulation on cell wall degradation and regeneration. This study aimed to 1) investigate the global proteome and phosphoproteome of rice chromatin, and 2) characterize changes in chromatin components and chromatin structure associated with cell wall degradation and regeneration, and 3) characterize the differentially regulated proteins and eventually explore the mechanism. In this dissertation, we examine proteins copurified with chromatin using both 2-DE gel and shotgun approaches from rice (Oryza sativa) suspension cells. …
Estimating Wildlife Viewing Recreational Demand And Consumer Surplus, James Cory Mingie
Estimating Wildlife Viewing Recreational Demand And Consumer Surplus, James Cory Mingie
Theses and Dissertations
Motivated by the increasing popularity of wildlife viewing and a growing emphasis on management for nontimber outputs, wildlife viewing demand was assessed. Specific objectives included determining factors affecting participation and frequency of use, and furthermore, deriving 2006 nationwide wildlife viewing consumer surplus estimates. With the travel cost method as the theoretical basis, the empirical estimation method employed was a two-step sample selection model that included a probit first step and a negative binomial second step. Consumer surplus per trip estimates ranged from $215.23 to $739.07 while aggregate national estimates ranged from $44.5 billion to $185.1 billion. Results reveal that age, …
Bovine Respiratory Disease: Understanding How Stress Modulates Immune And Growth Parameters When Cattle Are Challenged With Respiratory Pathogens (Viral And Bacterial), Shollie Falkenberg
Bovine Respiratory Disease: Understanding How Stress Modulates Immune And Growth Parameters When Cattle Are Challenged With Respiratory Pathogens (Viral And Bacterial), Shollie Falkenberg
Theses and Dissertations
Bovine respiratory disease (BRD) complex is a multiactorial disease syndrome that results from various individual contributions and interactions of pathogen, host, and environmental/management factors. Despite the efforts in research, prevention and treatment, BRD remains a leading cause of economic loss in the cattle industry. While advances in therapeutics and new vaccines have been developed over the past 20 – 25 years, the incidence of respiratory disease does not appear to be on the decline, rather it is appears to be increasing. While bacterial and viral pathogens, and various stressors associated with BRD have been characterized, there are no animal models …
Intestinal Digenetic Trematodes Found In Double-Crested Cormorant Populations In The Mississippi Delta And The Potential Impact Of These Parasites On Commercial And Wild Fish Species Found In This Region, Mary Mcpherson O'Hear
Intestinal Digenetic Trematodes Found In Double-Crested Cormorant Populations In The Mississippi Delta And The Potential Impact Of These Parasites On Commercial And Wild Fish Species Found In This Region, Mary Mcpherson O'Hear
Theses and Dissertations
Double-crested cormorants have steadily increased in the Mississippi Delta. This bird serves as a definitive host for digenetic trematodes, many of which infect fish. To identify these digeneans in cormorants and determine the impact these infections have on wild fish in the Mississippi Delta, two surveys were done. Cormorants were collected for two years in the Mississippi Delta. At necropsy trematodes were collected and identified morphologically and molecularly as: Austrodiplostomum ostrowskiae, Hysteromorpha triloba, Drepanocephalus spathans, Ascocotyle longa and Pseudopsilostoma varium. Additionally, 14 fish species were collected from a Mississippi Delta lake. Fish were examined for parasites and Posthodiplostomum minimum metacercariae …
Modifying The Double-Ovsynch Protocol To Include Human Chorionic Gonadotropin To Synchronize Estrus In Dairy Cattle, Joseph Andrew Binversie
Modifying The Double-Ovsynch Protocol To Include Human Chorionic Gonadotropin To Synchronize Estrus In Dairy Cattle, Joseph Andrew Binversie
Theses and Dissertations
The objectives of this study were to determine whether conception, ovulation rates, presynchronization rates, or follicle and CL characteristics were altered after modifying the Double-Ovsynch (DO) protocol to include human chorionic gonadotropin (hCG) compared to the conventional DO protocol in dairy heifers and lactating dairy cows. We hypothesized that replacing the first injection of gonadotropin releasing hormone (GnRH) in the DO protocol with hCG would increase the proportion of females that ovulate, thus improving the presynchronization rate leading to increased conception rates. Ovulation rates were increased in cows administered hCG compared to GnRH, but subsequent synchronization, and conception rates did …
Foraging Behavior Of Northern Bobwhites In Relation To Resource Availability, Ryan Spencer Miller
Foraging Behavior Of Northern Bobwhites In Relation To Resource Availability, Ryan Spencer Miller
Theses and Dissertations
The Northern Bobwhite (Colinus virginianus) is a popular game bird that inhabits pine grasslands throughout the Southeast. This study used experimental manipulation of food resources to investigate how resource availability influenced foraging behavior and space use of bobwhite in a southern pine-grassland forest system. Radio marked bobwhite were monitored to determine daily space use, movements, and daily and seasonal ranges. I observed no difference in daily (P = 0.06) or seasonal home range size (P = 0.55) between feeding treatments. However, dispersion in daily locations of radio-marked bobwhite differed among feed levels (P < 0.001). I assessed effects of food availability on diet and total body lipids of birds harvested from each treatment during February. Although bobwhite extensively utilized supplemental feed when available, energy value of pre-roosting crop contents did not differ among treatments (P = 0.41), but total body lipids differed between feed treatments and years (P < 0.001).
Formulation And Sensory Evaluation Of Gluten-Free Muffins Containing Flax, Adam Michael Woodyard
Formulation And Sensory Evaluation Of Gluten-Free Muffins Containing Flax, Adam Michael Woodyard
Theses and Dissertations
Celiac disease is characterized by an allergic reaction to gluten that causes inflammation of the small intestine and can lead to malabsorption and malnutrition. Glutenree products are being developed that meet dietary needs of individuals with celiac disease. However, these products often lack whole grains and fiber. Fortification of glutenree products with flax can increase nutritional value and alleviate inflammation. Sensory analysis (N=152) was conducted to evaluate the acceptability of glutenree muffins with moderate (3.8%) and high (7.4%) amounts of added flax. Results indicated that consumers preferred (p<0.05) the muffin without flax or the highlax muffin more than the muffin with the moderatelax treatment. The highlax and control treatments were rated 6.7, between like slightly and moderately like; the muffins from the moderatelax treatment were rated 6.4 on a nine-point hedonic scale. Producers of glutenree products could potentially formulate muffins that include flax and are acceptable to consumers.
Growth Response Of Mixed Native Grass Stands To Simulated Grazing In Mississippi: Forage Yield And Species Dynamics, Vitalis Wilbald Temu
Growth Response Of Mixed Native Grass Stands To Simulated Grazing In Mississippi: Forage Yield And Species Dynamics, Vitalis Wilbald Temu
Theses and Dissertations
Some native warm-season forage grasses [indiangrass (IG, Sorghastrum nutans), big bluestem (BB, Andropogon gerardii) and little bluestem (LB, Schizachyrium scoparium)] are gaining popularity for improving summer forage production and wildlife habitat in the southeastern USA. Paucity of information about appropriate harvest management limits their restoration success. An experiment was conducted to assess effects of harvest intervals (30-, 40-, 60-, 90 or 120-d) and harvest duration on forage yield and quality, plant growth, sward structure and botanical composition of their mixed stands at Bryan Farms, Clay County, MS. Total season forage was greatest for 30-d and more from first (8472 kg …
Role Of Autophagy In Radiosensitization Of Breast Tumor Cells, Molly L. Bristol
Role Of Autophagy In Radiosensitization Of Breast Tumor Cells, Molly L. Bristol
Theses and Dissertations
In MCF-7 breast tumor cells, ionizing radiation promoted autophagy that was cytoprotective; pharmacological or genetic interference with autophagy induced by radiation resulted in growth suppression and/or cell killing (primarily by apoptosis). The hormonally active form of vitamin D, 1,25D3, also promoted autophagy in irradiated MCF-7 cells, sensitized the cells to radiation and suppressed the proliferative recovery that occurs after radiation alone. 1,25D3 also enhanced radiosensitivity and promoted autophagy in MCF7 cells that overexpress Her-2/neu as well as in p53 mutant Hs578t breast tumor cells. In contrast, 1,25D3 failed to alter radiosensitivity or promote autophagy in the BT474 breast tumor cell …
The Potential For Eutrophication Mitigation From Aquaculture Of The Native Oyster, Crassostrea Virginica, In Chesapeake Bay: Quantitative Assessment Of An Ecosystem Service, Colleen Higgins
Theses and Dissertations
Native oysters have been promoted as a means to improve water quality in Chesapeake Bay. This project added important insights into the potential of oyster aquaculture to process and remove nutrients from Bay waters. Results clarified that nutrient removal of nitrogen (N), phosphorous (P), and carbon (C) through harvest of cultivated oyster biomass can be quantified and modeled with high levels of statistical confidence. A simple, yet accurate, method is now available for estimating the amount of nutrients removed via harvesting aquacultured oysters. Based on model estimates, 106 harvest sized oysters (76 mm TL) remove 132 kg TN, 19 kg …
Scarification And Cultural Practice Of Four Lupine Species Native To The Great Basin, Covy Dennis Jones
Scarification And Cultural Practice Of Four Lupine Species Native To The Great Basin, Covy Dennis Jones
Theses and Dissertations
The Great Basin is North America's largest desert, encompassing 135 million acres. Grazing and other anthropogenic activities in the Great Basin have put heavy demands on the landscape over the last 150 years. Heavily grazed areas lack diversity which allows the spread of exotic weed species. Cheatgrass (Bromus tectorum L [Poaceae]) has invaded and shortened fire frequency intervals from historic 30—100 years to as few as three to five years. Post-fire reseeding of native species is requisite for restoration of highly invaded ecosystems thus, preventing complete conversion to exotic weeds. Most native shrubs and grasses are available for restoration …
Academic Websites And Minority Portrayal: A Content Analysis, Aymara Jimenez
Academic Websites And Minority Portrayal: A Content Analysis, Aymara Jimenez
Theses and Dissertations
The Internet has changed the way society communicates with one another. One of the organizations that utilize the Internet in order to communicate with their audience is universities. The imagery and information that is featured in the homepages of university websites can portray a certain perception of that university. Universities were found to be diverse in the ethnic background of the persons used for their homepage imagery. The way minority characters were found to be portrayed in gave a general idea of what exist within academia as to how they view and portray minority groups.
Projection Design For A Contemporary Dance Work By Iván Angelus In Hungary, Tennessee Dixon
Projection Design For A Contemporary Dance Work By Iván Angelus In Hungary, Tennessee Dixon
Theses and Dissertations
The purpose of this thesis is to document and analyze my projection design for a new dance piece, "VŰ", directed by Angelus Iván and staged at Trafó in Budapest, Hungary. Included is an account of the design process, the concept and projection development described scene by scene, execution, performance and evaluation. The paper ends with reflections on the relatively new field of image projections, and my professional goals in scenic design.
Distribution Of Field Caught Mosquitoes From Laredo, Texas, Yvette Patricia Mendoza
Distribution Of Field Caught Mosquitoes From Laredo, Texas, Yvette Patricia Mendoza
Theses and Dissertations
Within the last decades, mosquito-borne viruses have re-emerged in the United States. These infectious viruses include Dengue, West Nile, St. Louis Encephalitis, and Chikungunya, just to name a few. Originating in sub-tropical and tropical regions, these viruses and the mosquitoes that transmit them know no borders. Laredo, Texas is a town which borders Nuevo Laredo, Tamaulipas, Mexico; an area that is known to have frequent outbreaks of the Dengue virus. Identifying the diversity of mosquito species and the abundance of mosquitoes in the City of Laredo is a key element in aiding local public health officials in disease surveillance. This …
Characterization Of The Desorption Electrospray Ionization Mechanism Using Microscopic Imaging Of The Sample Surface, Michael Craig Wood
Characterization Of The Desorption Electrospray Ionization Mechanism Using Microscopic Imaging Of The Sample Surface, Michael Craig Wood
Theses and Dissertations
Desorption electrospray ionization (DESI) is an ambient ionization technique for mass spectrometry. This solvent based desorption ion source has wide applicability in surface analysis with minimal sample preparation. Interest in improving detection limits, broadening applications, and increasing the spatial resolution for chemical imaging has led to studies of the DESI mechanism. An inverted microscope has been used to image interactions between the DESI spray and test analytes on a glass surface. Microscopic images recorded with millisecond time resolution have provided important insights into the processes governing analyte transport and desorption. These insights are the basis of a rivulet-based model for …
The Characterization Of Avian Polyomavirus, Satellite Tobacco Mosaic Virus, And Bacteriophage Cw02 By Means Of Cryogenic Electron Microscopy, Peter S. Shen
Theses and Dissertations
Viruses are the most abundant biological entity in the biosphere and are known to infect hosts from all domains of life. The aim of my work is to identify conserved and non-conserved features among the capsid structures of related and divergent icosahedral viruses via cryogenic electron microscopy, sequence analysis, molecular modeling, and other techniques. Bird polyomaviruses often cause severe disease in their hosts whereas mammalian polyomaviruses generally do not. Avian polyomavirus is a type of bird polyomavirus with an unusually broad host range compared to the restricted tropism of other polyomaviruses. Although most polyomaviruses have a conserved, rigid capsid protein …
The Effects Of Hypothermia On Status Epilepticus-Induced Acquired Epilepsy, Kristin Phillips
The Effects Of Hypothermia On Status Epilepticus-Induced Acquired Epilepsy, Kristin Phillips
Theses and Dissertations
Status epilepticus (SE) is a type of neurological injury characterized by continuous seizure activity and can lead to molecular and pathophysiological alterations leading to plasticity changes. SE can lead to the development of AE by the process of epileptogenesis, which is a phenomenon that describes the transformation of normal brain tissue into a hyperexcitable neuronal population. It has been demonstrated both in vivo and in vitro that calcium (Ca2+) dynamics are severely altered during and after SE, and these changes play a major role in the progression of epileptogenesis. It has also been reported that preventing the rise in intracellular …
Alleviating Equines: Investigating The Hypothesized Mechanisms Of Change In Equine Assisted Psychotherapy, Kathy L. Korell-Rach
Alleviating Equines: Investigating The Hypothesized Mechanisms Of Change In Equine Assisted Psychotherapy, Kathy L. Korell-Rach
Theses and Dissertations
Animal Assisted Therapy research was integrated to develop the Tri-Level Mechanisms of Change (TLMC) Conceptualization, which is a comprehensive theoretical framework hypothesizing how Equine Assisted Psychotherapy produces psychological change. TLMC hypothesizes that the strength of human animal bond (HAB) with personal pets accounts for the development of HAB with therapy horses (primary level). The quality of HAB with therapy horses is responsible for producing changes in general psychological constructs (secondary level). Adaptive changes in secondary level constructs account for reductions in mental illness symptoms (tertiary level). Results indicated a significant reduction in tertiary level symptoms, and gains were maintained at …
The Development And Application Of Fluorenscent Nanomaterials For Trace Determination Of Analytes, Carrie Lee John
The Development And Application Of Fluorenscent Nanomaterials For Trace Determination Of Analytes, Carrie Lee John
Theses and Dissertations
Rapid development in nanoscience and nanotechnology has led to the dawn of a wide variety of nanomaterials. The properties and applications of these materials have not yet been fully explored. Likewise, the development of new types of nanomaterials is still needed. In particular, there is high demand for new photosensitive nanomaterials for detection of trace amount of analytes. Therefore, this dissertation focuses on the development of new photosensitive nanomaterials, the study of their properties and the application of these nanomaterials in trace analysis. Two types of these nanomaterials were studied, zinc-induced fluorescent silica nanoparticles and gold nanorods. The synthesis and …