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Studying The Stability Of Collagen/Heparin Coatings To Be Used In Cell Therapy Applications, Gavin Mussino

Biological Sciences Undergraduate Honors Theses

This honors thesis aims to investigate the reusability and performance of cell coatings for cell therapy applications. Cell therapy, which involves the use of human cells to repair or replace damaged tissues, holds immense potential for medical advancements. However, ensuring the survival and functionality of transplanted cells remains a significant challenge. We focused on studying the effectiveness of coatings applied to cells for improved cell growth and viability. The research project involved the preparation of the coatings using a layer-by-layer method and the subsequent seeding of cells. The coated cells were then subjected to a series of experiments to assess …

Green Synthesis Of Nanoparticles And Their Utilization In Electrochemical Detection Of Catechol- Or Phenol-Based Substances, Daniel Laurence Myers Iii

Browse all Theses and Dissertations

PART A: GREEN SYNTHESIS OF COPPER NANOPARTICLES AND THEIR UTILIZATION IN THE DETECTION OF NEUROTRANSMITTERS Neurotransmitters, such as dopamine and epinephrine, are chemicals frequently found in the brain and are responsible for a number of human moods, needs, and emotions.1, 2 Detection of such neurotransmitters allows for a better judgement of a person’s physical and mental state, a utility that is vital in determining the presence of disease and mental illnesses.2 Electrochemical detectors used for such detections are often modified by materials such as metal nanoparticles.3 However, synthesizing nanoparticles can involve or produce chemicals, ammonium hydroxide among them, that are …

Enhanced Adsorption Of Anionic Dyes Using Sr-Doped Zno Nanoparticles: Nonlinear Kinetics And Isotherm Studies, Mostafa H. Mohamed, Taha M. Elmorsi, H. M. Abdelbary

Al-Azhar Bulletin of Science

Using a co-precipitation process, sr-doped ZnO was prepared and demonstrated to be effective in the removal of anionic congo red dye, since its surface positive charge was increased to 17.3 mV. To investigate the surface morphology and physicochemical characteristics of Sr-doped ZnO, FTIR spectroscopy, scanning electron microscopy (SEM), elemental analysis, and point of zero charges (pHPZC) were employed. We conducted batch adsorption experiments to investigate the effects of contact time (180 minutes), pH (3.5–11), adsorbent dosage (0.5–3.0 g L−1), and temperature (288–328 K). The kinetic study was modeled using several equations, including pseudo-firstorder (PFO), pseudo-second-order (PSO), Elovich, and intra-particle diffusion …

Evaluation And Improvement Of Capillary Microextraction Of Volatiles Coupled To Gas Chromatography-Mass Spectrometry For The Analysis Of Ignitable Liquid Residues In Fire Debris, Michelle Nikole Torres

FIU Electronic Theses and Dissertations

A key aspect of fire debris analysis is the ability to extract the remnants of an ignitable liquid from a matrix with a high degree of reliability and sensitivity. Although there are several robust, standardized methods, there is no single technique universally applicable to casework. In this work a novel extraction technique – Capillary Microextraction of Volatiles (CMV) – has been applied, for the first time, for ignitable liquid residue (ILR) extraction. A 20-minute dynamic sampling laboratory protocol from traditional 1 L paint cans was established and optimized based upon ASTM guidelines. The development of new adsorption phases for CMV …

Fabrication And Characterization Of Novel Agnps Functionalized With Chlorothymol (C@Agnps), Lirim Sopaj

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In this study, novel silver nanoparticles (AgNPs) were successfully synthesized and functionalized with an antibacterial agent, namely chlorothymol (denoted C@AgNPs). The resulting colloid (C@AgNPs) was purified by two comparative methods: ultrafiltration and ultracentrifugation. Ultrafiltration proved to be more efficient in purifying and size selecting (10 kD filter) and concentrating the C@AgNPs than ultracentrifugation. The physicochemical properties of the filtered C@AgNPs were then characterized by UV-Vis absorption spectroscopy, inductively coupled plasma optical emission spectroscopy (ICP-OES), Raman spectroscopy, Cytoviva hyperspectral imaging, and Scanning electron microscopy. These measurements confirmed the functionalization of the core AgNPs with chlorothymol and suggest the proposed mechanism of …

Estimation Of The Amount Of Active Pharmaceutical Ingredient In Over-The-Counter Available Aspirin Formulations Using Titrimetry, Uv-Visible Spectrophotometry And Raman Spectroscopy, Harismranjeet K. Chahal

Browse all Theses and Dissertations

Counterfeit pharmaceuticals are a serious threat to public safety worldwide. Adverse health effects including resistance to treatment and death have resulted from the consumption of such medicines. Aspirin, which is a non-steroidal anti-inflammatory drug, has been counterfeited in the past due to its increasing demand. Rapid and easy analytical methods are needed to detect these counterfeit medicines and put a halt to the growing number of such incidents. In this study, quantitative estimation of active pharmaceutical ingredient (API) content in different over-the-counter available aspirin tablets was done using titrimetry and UV- Visible spectrophotometry. Qualitative analysis was done using Raman spectroscopy. …

Essays On Environmental And Health Economics., Prachi Singh Dr.

Doctoral Theses

This thesis consists of three empirical essays that investigate issues in environmental and health economics. The main focus of this thesis is to study how environmental degradation or interventions in this domain can affect demographic and health outcomes of the population in developing countries. The first chapter explores the effect of an information campaign about arsenic contamination in Bangladesh on marriage market outcomes. This study finds that providing information about negative effects of arsenic consumption had an unintended consequence in the marriage market. Specifically, information about lower fertility, skin lesions, cancers and higher mortality related to arsenic exposure induced individuals …

I. Non-Degradable Polysiloxane Networks For Controlled Release Applications, And Ii. Additive Free, Degradable Silyl-Ether Furyl-Maleimide Networks, Caleb M. Bunton

Chemistry Theses and Dissertations

I. Two different series of non–degradable polysiloxane networks were prepared for the encapsulation and controlled release of a small molecule agent. For the first series, hydrosilylation was utilized to prepare networks of varying crosslink densities, as determined from swelling studies, from vinyl terminated and silylhydride functional poly(dimethyl)siloxanes. For the second series, the thiol-ene reaction was utilized to prepare networks of varying crosslink densities, as determined from swelling studies, from vinyl terminated and mercaptopropyl functional poly(dimethyl)siloxanes. Nile red dye was used as an encapsulated agent and dye release from each series of networks was measured using UV–vis spectroscopy to determine controllability …

An Investigation Into The History, Science, And Future Of Dental Filling Materials, Natalia Kaczor

Honors Theses

No abstract provided.

Evaluation Of The Mechanisms And Effectiveness Of Nano-Hydroxides, Wood And Dairy Manure-Derived Biochars To Remove Fluoride And Heavy Metals From Water, Anna Rose Wallace, Wenjie Sun Dr, Chunming Su Dr

Civil and Environmental Engineering Theses and Dissertations

The development of effective treatment processes for the removal contaminants, such as fluoride and heavy metals, from polluted water have been urgently needed due to serious environmental health and safety concerns. In this dissertation, a variety of materials including various (hydro)oxide nanomaterials, biochars and surface modified biochar were studied to evaluate their effectiveness and mechanism on removing fluoride or mixed heavy metals from water.

In the Chapter 2, this study investigated the adsorptive removal of fluoride from water using various (hydro)oxide nanomaterials, focusing on ferrihydrite, hydroxyapatite (HAP) and brucite, which have the potential to be used as sorbents for surface …

The Periodical Fall 2019, Southern Adventist University

the Periodical – Chemistry Department Newsletter

Volume 7, issue 1 of the Periodical includes articles about new faculty member Tamie Suzuki, an alumni spotlight, general department news, at a pictorial listing of 2019 December chemistry graduates.

9th Annual Postdoctoral Science Symposium, University Of Texas Md Anderson Cancer Center Postdoctoral Association

Annual Postdoctoral Science Symposium Abstracts

The mission of the Annual Postdoctoral Science Symposium (APSS) is to provide a platform for talented postdoctoral fellows throughout the Texas Medical Center to present their work to a wider audience. The MD Anderson Postdoctoral Association convened its inaugural Annual Postdoctoral Science Symposium (APSS) on August 4, 2011.

The APSS provides a professional venue for postdoctoral scientists to develop, clarify, and refine their research as a result of formal reviews and critiques of faculty and other postdoctoral scientists. Additionally, attendees discuss current research on a broad range of subjects while promoting academic interactions and enrichment and developing new collaborations.

The Periodical Winter 2018, Southern Adventist University

the Periodical – Chemistry Department Newsletter

Volume 5, issue 2 of the Periodical includes articles about new faculty member Matthew Duffy, diversity within the department, a student missionary feature, and a listing of May 2018 graduates.

Differentiation Of Potential False Positives From Human Saliva Using Raman Spectroscopy For Forensic Purposes, Selina Casadei

Legacy Theses & Dissertations (2009 - 2024)

Traces of body fluids can be found at a crime scene. Being able to identify and differentiate the body fluids while preserving DNA is fundamentally important for forensic applications. Saliva is an important body fluid that can be found on bite marks, cigarette butts, and more, being an excellent source for DNA extraction. Current tests for saliva and other body fluids are destructive and body fluid specific, and are prone to false positives. Our laboratory has developed a universal method for identification of all main body fluids; saliva, semen, sweat, peripheral blood, and vaginal fluid, using Raman spectroscopy combined with …

The Periodical Fall 2017, Southern Adventist University

the Periodical – Chemistry Department Newsletter

Volume 5, issue 1 of the Periodical includes articles about new assistant professor Nuvia Saucedo, student missions in Peru, forensic chemistry summer camp, and a pictorial listing of December 2017 graduates.

The Periodical Winter 2017, Southern Adventist University

the Periodical – Chemistry Department Newsletter

Volume 4, issue 2 of the Periodical includes articles about the Chemistry Club's service activities, a student missions feature, student research at N.C. State, a pictorial directory of May 2017 graduates, and an alumni spotlight.

The Periodical Fall 2016, Southern Adventist University

the Periodical – Chemistry Department Newsletter

Volume 4, issue 1 of the Periodical includes articles about renovations to the Chemistry and Math departments, a chemistry professor conference, the high school forensic chemistry academic summer camp, an alumni spotlight, and a pictorial listing of December 2016 graduates.

The Cosm Newsletter

The COSM Newsletter (2008-2018)

• Eagles in Training for STEM Careers
• The Department of Biology Welcomes New Faculty
• Biology Alumni Move Onward and Upward
• Georgia Southern's Elite 8 for REU-2016
• Geologists Investigate Salt Water Intrusion on a Georgia Barrier Island
• The Georgia Southern Sea Turtle Program at St. Catherines Island: The 2016 Sea Turtle Nesting Season
• Hatchlings
• The Department of Mathematical Sciences Welcomes New Faculty
• Eagles Win Third MacArthur Award
• Faculty member awarded new Patent on “Engineered lumenized vascular networks and support matrix”
• The Photonic Nanotechnology Computational Group
• Edwards participates in NSF "Ideas Lab" to Measure "Big G"
• Faculty Member Participates in Scholarly Activities
• Professors …

The Periodical Winter 2016, Southern Adventist University

the Periodical – Chemistry Department Newsletter

Volume 3, issue 2 of the Periodical includes articles about the Chemistry Club's community service, a pictorial listing of May 2016 graduates, student Jeron Estwick's presentation at a chemistry conference, a feature on students recognized for academic achievement, and an alumni spotlight.

15. Pharmacy, Northeastern State University

Oklahoma Research Day Abstracts

No abstract provided.

The Periodical Winter 2015, Southern Adventist University

the Periodical – Chemistry Department Newsletter

Volume 2, issue 1 of the Periodical includes a message from department chair Brent Hamstra, recognition of high-achieving chemistry students, a welcome to new office manager Heidi Olson, a pictorial listing of May 2015 graduates, an article about students presenting undergraduate research, and an alumni spotlight.

College Of Science And Mathematics Newsletter, Summer 2014, College Of Science And Mathematics, Wright State University

College of Science and Mathematics Newsletters

This 9 page newsletter discusses various happenings within the College of Science and Mathematics. It begins with a letter from the dean, and continues on with news, events, alumni news, and other community news.

The Periodical Winter 2014, Southern Adventist University

the Periodical – Chemistry Department Newsletter

Volume 1, issue 1 of the Periodical includes articles about Rhonda Scott's time as chair of the department, faculty news, a pictorial directory of 2014 graduates, an alumni spotlight, and Chemistry Club news.

Improving Student Learning Of Organic Chemistry By The Use Of Case Comparisons., Divine-Favour Ekene Anene

College of Arts & Sciences Senior Honors Theses

No abstract provided.

Development Of Lc-Ms/Ms Methods For Quantitative Analysis Of Plant-Derived Anticancer Agent And Synthetic Estrogen In Complex Matrices, Simuli Lindah Wabuyele

ETD Archive

No abstract provided.

Controlling Nanoparticle Dispersion For Nanoscopic Self-Assembly, Nathan S. Starkweather

Master's Theses

Nanotechnology is the manipulation of matter and devices on the nanometer scale. Below the critical dimension length of 100nm, materials begin to display vastly different properties than their macro- or micro- scale counterparts. The exotic properties of nanomaterials may trigger the start of a new technological revolution, similar to the electronics revolution of the late 20^th century. Current applications of nanotechnology primarily make use of nanoparticles in bulk, often being made into composites or mixtures. While these materials have fantastic properties, organization of nano and microstructures of nanoparticles may allow the development of novel devices with many unique properties. …

Fluoride And Your Teeth: How Fluoride In Dental Products Protects Your Teeth From Cavities, Jacob Dickey

Natural Sciences Student Research Presentations

This poster examines the use and effectiveness of fluorine to prevent cavities.

Effects Of Activated Carbon Surface Chemistry Modification On The Adsorption Of Mercury From Aqueous Solution, Emily K. Faulconer

Publications

Mercury (Hg), a naturally occurring element, is toxic and can lead to negative health impacts for humans and ecosystems. Activated carbon adsorption is effective in treating Hg-laden aqueous effluent for safe discharge. Two modifications of commercially available activated carbon were investigated: iron impregnation to allow for magnetic sorbent recapture and wet chemical oxidation to enhance aqueous Hg capture. The modified carbons were characterized by nitrogen adsorption-desorption, XRD, pHpzc, vibrating sample magnetometry, elemental analysis, and total acidity titration. The 3:1 C:Fe magnetic powdered activated carbon (MPAC) retained a high surface area of 790 m2 /g and was 95% magnetically recoverable, with …

The Equation, Winter 2004, College Of Science And Mathematics, Wright State University

College of Science and Mathematics Newsletters

This 6 page newsletter discusses various happenings within the College of Science and Mathematics. It begins with a letter from the dean, and continues on with news, events, alumni news, and other community news.

Scaling In Carbon Monoxide And Nitrogen, Jerry Goodisman

Chemistry - All Scholarship

No abstract provided.