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Full-Text Articles in Forensic Science and Technology

Extraction Of Human Dna From Soil In A Simulated Clandestine Grave, Arely Joaly Parra Lopez May 2021

Extraction Of Human Dna From Soil In A Simulated Clandestine Grave, Arely Joaly Parra Lopez

Honors Theses

Locard’s Exchange Principle states that “every contact leaves a trace.” The same principle applies when a perpetrator of a homicide decides to bury a victim in a clandestine grave. If a perpetrator originally buried a murder victim in haste to prevent discovery and then decided to later move the victim’s body to a remote location for disposal, decomposition fluids from the victim’s body (which contain cellular material and therefore DNA) would remain in the surrounding grave soil at the original burial site. It is possible that investigators could: 1) prove that a human body had once laid in that location …


Dna Methylation Methods For Donor Age Prediction Using Touch Dna, Emily Neverett May 2019

Dna Methylation Methods For Donor Age Prediction Using Touch Dna, Emily Neverett

Master's Theses

The International Labor Organization (ILO) estimated over 30 million individuals fall victim to human trafficking each year, of which, 50% are children below the age of 16. In 2012, the ILO reported there to be 168 million child laborers worldwide, with many trafficked into hazardous conditions to manufacture consumer products that are sold in developed countries. This is a modern form of slavery with poor working conditions, no access to education, and low wages. The hidden nature of this crime, however, makes it extremely difficult to identify and locate victims of forced child labor, and thus making it challenging to …


Assay Development For The Identification Of Species And Bioactive Compounds Of Morinda Citrifolia (Noni) In Dietary Supplements By Rt-Qpcr, Dna Sanger Sequencing And Spectroscopy (Uv-Vis/Ftir), Ricardo L. Fernandez Walker Jan 2019

Assay Development For The Identification Of Species And Bioactive Compounds Of Morinda Citrifolia (Noni) In Dietary Supplements By Rt-Qpcr, Dna Sanger Sequencing And Spectroscopy (Uv-Vis/Ftir), Ricardo L. Fernandez Walker

Master's Theses

Regulation standards for dietary supplements lack greatly. Due to this, fraud during the manufacturing of these products might be committed. Previous investigations on herbal dietary supplements have shown that the main ingredient was not present in most of the herbal supplements tested and that these products also contained other substances not stated in the label The purpose of this study was to develop a fluorescent qPCR assay for the identification of Morinda citrifolia herbal species in dietary supplements. Primers for genetic regions rbcL and matK of M. citrifolia were designed. The potential of novel matK primer showed discrimination potential …


Screening Of Exosomal Micrornas From Colorectal Cancer Cells, Cillian Clancy, Sonja Khan, Claire L. Glynn, Emma Holian, Peter Dockery, Pierce Lalor, James A.L. Brown, Myles Joyce, Michael J. Kerin, Roisin M. Dwyer Jan 2016

Screening Of Exosomal Micrornas From Colorectal Cancer Cells, Cillian Clancy, Sonja Khan, Claire L. Glynn, Emma Holian, Peter Dockery, Pierce Lalor, James A.L. Brown, Myles Joyce, Michael J. Kerin, Roisin M. Dwyer

Forensic Science Publications

BACKGROUND: Cells release extracellular membrane vesicles including microvesicles known as exosomes. Exosomes contain microRNAs (miRNAs) however the full range within colorectal cancer cell secreted exosomes is unknown. OBJECTIVE: To identify the full range of exosome encapsulated miRNAs secreted from 2 colorectal cancer cell lines and to investigate engineering of exosomes over-expressing miRNAs. METHODS: Exosomes were isolated from HCT-116 and HT-29 cell lines. RNA was extracted from exosomes and microRNA array performed. Cells were engineered to express miR-379 (HCT-116-379) or a non-targeting control (HCT-116-NTC) and functional effects were determined. Exosomes secreted by engineered cells were transferred to recipient cells and the …


Development Of A Quantitative Real-Time Polymerase Chain Reaction (Rt-Pcr) Assay For Plant Species, Kayla Curtis, Heather Miller Coyle Mar 2014

Development Of A Quantitative Real-Time Polymerase Chain Reaction (Rt-Pcr) Assay For Plant Species, Kayla Curtis, Heather Miller Coyle

Forensic Science Publications

In order to facilitate optimal plant DNA quantitation and identification, an assay has been developed that uses generic plant PCR primers that amplify a region in the chloroplast genome of plant samples. The assay uses the SYBR green detection dye to detect the PCR product with a universal PCR primer set to the large subunit of ribulose bisphosphate carboxylase, rbcL, but can be used with any of the universal barcode primers for land plants (rbcL, matK, trnH, psbA). Standard dilutions of control wheat DNA of varying concentrations were tested to create a standard curve. Several plant DNA extractions of different …