liu.seSearch for publications in DiVA
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Reference material for comparison of different adhesive tapes for forensic DNA sampling: -
Show others and affiliations
2015 (English)In: Abstracts ISFG, 2015, 267-268 p.Conference paper, Oral presentation with published abstract (Refereed)
Abstract [en]

Tape-lifting is an efficient method for collecting traces of cellular material from fabrics. Since 2006, an in-house adhesive tape has been used in casework at the Swedish National Forensic Centre, Linköping. Although this tape gives good DNA yields, we aim to replace it with a commercial tape to save cost and labor. In order to enable a fair comparison between different adhesive tapes, we have developed and evaluated a method for production of relevant reference material. One person, known to be a good shedder, wore identical long-sleeved T-shirts under controlled circumstances, and trace recovery was systematically performed with the in-house tape (3 T-shirts, total of 24 samples). Each sample was DNA extracted (Chelex) and quantified (Quantifiler Human DNA Quantification kit) to find the normal variation within the reference material.

The DNA recovery differed considerably between samples, with obtained DNA concentrations between 0.010-0.481 ng/μL (mean: 0.083, standard deviation: 0.116 ng/μL). Applying such a reference material for comparison between two commercial tapes and our in-house tape resulted in mean DNA recoveries plus/ minus one standard deviation of 0.013±0.006 ng/μL (Scenesafe FAST Box), 0.012±0.007 ng/μL (Touch Tape), and 0.023±0.013 ng/μL (in-house tape).

The in-house tape gave statistically significant higher yield compared to Touch Tape (p<0.05), but for Scenesafe the difference was not significant. Shedding of cells to worn clothes is a random process. Having a systematically prepared, casework-like reference material with known variation is therefore vital for comparative studies of tapes.

Place, publisher, year, edition, pages
2015. 267-268 p.
National Category
Analytical Chemistry
Identifiers
URN: urn:nbn:se:liu:diva-120899OAI: oai:DiVA.org:liu-120899DiVA: diva2:849422
Conference
26th Congress of the International Society for Forensic Genetics
Available from: 2015-08-28 Created: 2015-08-28 Last updated: 2015-09-17

Open Access in DiVA

No full text

Search in DiVA

By author/editor
Ansell, Ricky
By organisation
BiologyFaculty of Science & Engineering
Analytical Chemistry

Search outside of DiVA

GoogleGoogle Scholar

Total: 57 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf