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Full-Text Articles in Physical Sciences and Mathematics
Resolution Of Portable Raman Spectrometers And Its Effect On The Analysis Of Biological Specimens, Jalissa Thomas
Resolution Of Portable Raman Spectrometers And Its Effect On The Analysis Of Biological Specimens, Jalissa Thomas
Chemistry
Body fluid traces are a common and a major form of evidence that can be found at a crime scene, as it is a good source of DNA. As such, it is vital that body fluid evidence is properly detected and identified. Issues with the current methods of identifying body fluids and the large backlog of evidence in most forensic labs call for more accurate on-scene (in situ) body fluid identification. Past research has demonstrated that Raman spectroscopy is an advantageous tool for accurately and quickly identifying body fluids, namely in the laboratory. Portable Raman instruments have been …
Identification And Analysis Of Body Fluid Traces For Forensic Purposes Using Vibrational Spectroscopy And Chemometrics, Ewelina M. Mistek-Morabito
Identification And Analysis Of Body Fluid Traces For Forensic Purposes Using Vibrational Spectroscopy And Chemometrics, Ewelina M. Mistek-Morabito
Legacy Theses & Dissertations (2009 - 2024)
Recent years have seen a large expansion in the forensic field due to the introduction of novel analytical techniques. Body fluids are an extremely important type of evidence at crime scenes and the main source of DNA. Most current methods for the identification and examination of body fluid traces require chemical treatment and are therefore destructive to the sample. Thus, new methods that are nondestructive and provide rapid results with statistical confidence are desirable. Such methods could eliminate noninformative traces and allow investigators to focus on more valuable pieces of evidence. The ultimate goal of this research is to develop …
Utilizing Raman Spectroscopy And Chemometrics For Novel Medical Diagnostic Purposes, Nicole M. Ralbovsky
Utilizing Raman Spectroscopy And Chemometrics For Novel Medical Diagnostic Purposes, Nicole M. Ralbovsky
Legacy Theses & Dissertations (2009 - 2024)
Many problems exist within the myriad of currently employed diagnostic techniques. Further, an incredibly wide variety of procedures are used to identify an even greater number of diseases which exist in the world. There is a definite unmet clinical need to improve the diagnostic capabilities of these methods, including improving test sensitivity and specificity, objectivity and definitiveness, and reducing cost and how invasive a test is, with an interest in replacing multiple diagnostic methods with one powerful tool. That is, the development of a singular technique which can accurately and objectively diagnose a wide variety of diseases in a cost-effective …
Optimal Excitation Wavelength For Raman Spectroscopic Analysis Of Organic Gunshot Residue Evidence, Ashley Hull
Optimal Excitation Wavelength For Raman Spectroscopic Analysis Of Organic Gunshot Residue Evidence, Ashley Hull
Legacy Theses & Dissertations (2009 - 2024)
Gunshot residue (GSR) is a type of trace evidence that can often be recovered at violent crime scenes. There are two major types of GSR, organic gunshot residue (OGSR), and inorganic gunshot residue (IGSR). Traditional forensic analysis of GSR focuses on IGSR, although with the movement towards lead-free, or non-toxic ammunition, IGSR analysis has become less informative, as lead is a major component of IGSR analysis. Because of this, OGSR has been investigated to supplement the standard IGSR analysis methods. Previous work has shown Raman spectroscopy to be effective at identifying OGSR as well as a minimally destructive and specific …