Open Access. Powered by Scholars. Published by Universities.®

Toxicology Commons

Open Access. Powered by Scholars. Published by Universities.®

Articles 1 - 4 of 4

Full-Text Articles in Toxicology

The Method Development And Validation Of Designer Benzodiazepines In Oral Fluid Using Solid Phase Extraction And Lc-Ms/Ms, Jenna L. Monsell Dec 2023

The Method Development And Validation Of Designer Benzodiazepines In Oral Fluid Using Solid Phase Extraction And Lc-Ms/Ms, Jenna L. Monsell

Student Theses

Oral fluid is a useful biological matrix. Collection is non-invasive, quick, observable, and its correlation between oral fluid and blood drug concentration make oral fluid an important matrix to use as a roadside test. Designer benzodiazepines have become increasingly popular over the years, adversely affecting motor skills and leading to driving under the influence. Many previous studies have focused on the method development and validation of designer benzodiazepines in blood and hair but fail to validate a method to detect designer benzodiazepines in oral fluid. This study focuses on the method validation of 13 designer benzodiazepines in oral fluid using …


Hair And Drugs: The Impact Of Dry Shampoo And Gel On Cocaine-Contaminated Hair, Marialejandra Faure Betancourt Aug 2023

Hair And Drugs: The Impact Of Dry Shampoo And Gel On Cocaine-Contaminated Hair, Marialejandra Faure Betancourt

Student Theses

Hair is a biological sample used in forensic toxicology to identify and quantify drug exposure. However, when interpreting analytical results, hair can be challenging due to the presence of external contamination. Previous studies have shown that cosmetic treatments remove drugs within the hair shaft decreasing their concentration. Nevertheless, not enough information is available to explain this phenomenon. This study focused to determine whether cosmetic products such as dry shampoo and gel influence the concentration of externally deposited cocaine (COC) and benzoylecgonine (BE) in different hair types/colors. Hair samples from fifteen COC-free volunteers of various hair colors/types were collected and divided …


Investigating Stormwater Parameters From Runoff On East Tennessee State University Campus, Abby Mciver, Dr. Joseph R. Bidwell May 2023

Investigating Stormwater Parameters From Runoff On East Tennessee State University Campus, Abby Mciver, Dr. Joseph R. Bidwell

Undergraduate Honors Theses

Climate change has caused an increase in extreme rain events and flooding in certain regions across the globe. During rain events, water flows over impervious surfaces structures such as roads and sidewalks, picking up contaminants such as metals, fertilizers and other nutrients, and various organics that which may impact organisms in such as streams, river, and lakes. Previous work has found significant differences in survival of organisms that were exposed to contaminated stormwater runoff. This study investigated stormwater chemistry parameters at collection sites on the East Tennessee State University campus. Sites were selected based on the extent of human interaction …


Examining The Oxidative Stress Effects In Rats Exposed To 2-Aminoanthracene In Utero And High Fat Diet Three Months After, Brianna A. Lanoix Jan 2023

Examining The Oxidative Stress Effects In Rats Exposed To 2-Aminoanthracene In Utero And High Fat Diet Three Months After, Brianna A. Lanoix

Honors College Theses

Polycyclic aromatic hydrocarbons are organic compounds that are created synthetically or found in partially burned oil, gasoline, and coal. 2-aminoanthracene (2AA) is a common example of a PAH and can affect lipid and carbohydrate metabolism and resulting in inflammatory problems and oxidative stress. The objective of the research project is to investigate oxidative stress in relation to diabetes in rats exposed to 2AA in utero and a high fat diet later in life. Pregnant dams were separated into treatment groups based on their dosages of 2AA; 0 mg/kg (control), 50 mg/kg (low), 100 mg/kg (high). During the gestation -postpartum period, …