Open AccessA rapid and noninvasive method to detect dried saliva stains from human skin using fluorescent spectroscopy
Author(s) -
Kanwar Deep Singh Nanda,
K Ranganathan,
KM Umadevi,
Elizabeth Joshua
Publication year - 2011
Publication title -
journal of oral and maxillofacial pathology/journal of oral and maxillofacial pathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.455
H-Index - 25
eISSN - 1998-393X
pISSN - 0973-029X
DOI - 10.4103/0973-029x.80033
Subject(s) - saliva , fluorescence , chemistry , spectroscopy , human skin , licking , emission spectrum , tongue , materials science , dentistry , chromatography , analytical chemistry (journal) , medicine , pathology , biology , spectral line , optics , biochemistry , physics , quantum mechanics , astronomy , genetics
Saliva is one of the vital fluids secreted in human beings. Significant amount of saliva is deposited on the skin during biting, sucking or licking, and can act as an important source in forensic evidence. An enzyme, α amylase, gives a characteristic emission spectrum at 345-355 nm when excited at 282 nm and this can be identified by using fluorescent spectroscopy and can help in forensic identification. This study describes a rapid method to detect dried saliva on the human skin by fluorescent spectroscopy.