Microscopical Characterization of Known Postmortem Root Bands Using Light and Scanning Electron Microscopy

Highlights • Known postmortem root bands (PMRBs) in human hair were characterized at the light and electron microscopy spatial scales. • The PMRB is an interwoven network of gas-filled void spaces. • Degradation to the intermacrofibrillar matrix may be responsible for the void spaces. • In the PMRB...

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Bibliographic Details
Published in:Forensic science international 2016-10, Vol.267 (C), p.7-15
Main Authors: Hietpas, Jack, Buscaglia, JoAnn, Richard, Adam H, Shaw, Stephen, Castillo, Hilda S, Donfack, Joseph
Format: Article
Language:English
Subjects:
Banding
Criminal investigations
Degradation
Enzymes
Forensic Pathology
Forensic science
Forensic sciences
Hair
Hair - anatomy & histology
Hair Follicle - ultrastructure
Hair microscopy
Humans
Information dissemination
Keratin
Laboratories
Microscopy
Microscopy, Electron, Scanning
Pathology
Postmortem Changes
Postmortem hair root band
Proteins
Roots
Scanning electron microscopy
Studies
Sulfur
Trace evidence
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Summary:Highlights • Known postmortem root bands (PMRBs) in human hair were characterized at the light and electron microscopy spatial scales. • The PMRB is an interwoven network of gas-filled void spaces. • Degradation to the intermacrofibrillar matrix may be responsible for the void spaces. • In the PMRB region, the layers of the cuticle are not degraded. • There is little degradation perpendicular to the hair length.
ISSN:0379-0738
1872-6283
DOI:10.1016/j.forsciint.2016.07.009