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Please use this identifier to cite or link to this item: http://apo.ansto.gov.au/dspace/handle/10238/3214

Title: Gamma irradiation as a biological decontaminant and its effect on common fingermark detection techniques and DNA profiling.
Authors: Hoile, R
Banos, C
Colella, M
Walsh, SJ
Roux, C
Keywords: Crime Detection
DNA
Irradiation
Decontamination
Fingers
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Issue Date: Jan-2010
Publisher: Wiley-Blackwell
Citation: Hoile, R., Banos, C., Colella, M., Walsh, S. J., & Roux, C. (2010). Gamma irradiation as a biological decontaminant and its effect on common fingermark detection techniques and DNA profiling. Journal of Forensic Sciences, 55(1), 171-177.
Abstract: The use of disease-causing organisms and their toxins against the civilian population has defined bioterrorism and opened forensic science up to the challenges of processing contaminated evidence. This study sought to determine the use of gamma irradiation as an effective biological decontaminant and its effect on the recovery of latent fingermarks from both porous and nonporous items. Test items were contaminated with viable spores marked with latent prints and then decontaminated using a cobalt 60 gamma irradiator. Fingermark detection was the focus with standard methods including 1,2-indanedione, ninhydrin, diazafluoren-9-one, and physical developer used during this study. DNA recovery using 20% Chelex extraction and quantitative real-time polymerase chain reaction was also explored. Gamma irradiation proved effective as a bacterial decontaminant with D-values ranging from 458 to 500 Gy for nonporous items and 797–808 Gy for porous ones. The results demonstrated the successful recovery of latent marks and DNA establishing gamma irradiation as a viable decontamination option. © 2010, Wiley-Blackwell. The definitive version is available at www3.interscience.wiley.com
URI: http://dx.doi.org/10.1111/j.1556-4029.2009.01233.x
http://apo.ansto.gov.au/dspace/handle/10238/3214
ISSN: 0022-1198
Appears in Collections:Journal Articles

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