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Advantage of ForensiX Swabs in Retrieving and Preserving Biological Fluids
Author(s) -
Mawlood Shakhawan K.,
Alrowaithi Majid,
Watson Nigel
Publication year - 2015
Publication title -
journal of forensic sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.715
H-Index - 96
eISSN - 1556-4029
pISSN - 0022-1198
DOI - 10.1111/1556-4029.12704
Subject(s) - saliva , cotton swab , tube (container) , chromatography , medicine , biology , chemistry , materials science , microbiology and biotechnology , composite material
This study compares two novel swabs (forensiX) with a standard cotton swab ( EUROTUBE ) for the collection of saliva stains on glass slide for STR analysis. ForensiX collection tubes are a standard cotton swab in an “active drying” tube, where swab sample is soon dried by its innovative tube surface of the wall. The other is forensi X N ylon F locked S wab. The study is two phases: The first “phase” assesses swab types regarding to retrieve ability of saliva. The second “phase” compares the drying ability of each swab to assess how crime samples would fare when left in storage. The main result showed that “active drying” is effective to store swabbed sample. The forensi X swabs generally are effective for higher (twofold to fourfold) DNA yield compared to delta lab swab (around 750 pg and 250 pg from 0.5 μL of saliva), respectively. These findings demonstrate the importance of drying performance in the preservation of DNA and swab selection.