Nanotechnology Now

Our NanoNews Digest Sponsors





Heifer International

Wikipedia Affiliate Button


DHgate

Home > Press > A step towards a revolution in law enforcement

Latent fingermarks from a male donor developed on aluminium foil. Image provided by Xanthe Spindler
Latent fingermarks from a male donor developed on aluminium foil. Image provided by Xanthe Spindler

Abstract:
In summary:

- UTS forensic science researcher Dr Xanthe Spindler has achieved a world first with the preliminary development of a novel immunogenic method that could recover usable fingerprints from old evidence and difficult surfaces

- It is also a step in pursuit of the "Holy Grail" of a reliable method for recovering fingerprints from human skin

A step towards a revolution in law enforcement

Sydney, Australia | Posted on June 6th, 2011

Despite fingerprinting being essentially the foundation technique of modern forensic science, only a fraction of all the fingermarks at a crime scene are actually detected.

Now the work of UTS forensic science researcher Dr Xanthe Spindler has made an important step towards recovering usable fingerprints from old evidence and surfaces long considered too difficult by crime scene investigators.

The collaboration between the UTS Centre for Forensic Science, the University of Canberra, the Australian Federal Police and Northern Illinois University has resulted in a forensic science world first with the preliminary development of a novel immunogenic method to detect latent fingermarks.

The new method developed by Dr Spindler as part of her PhD work uses antibodies designed to target amino acids and can detect aged, dry and weak fingerprints that can't be captured using traditional fingerprinting methods.

"We've been able to successfully target amino acids on non-porous surfaces for the first time, with promising results in enhancing aged and degraded fingermarks that typically give poor results with traditional powdering and cyanoacrylate fuming," Dr Spindler said. "The potential is there to go back to old cases to see what might now be recovered."

Recently published in Chemical Communications, a journal of the Royal Society of Chemistry, the work is also a step in pursuit of the "Holy Grail" as Dr Spindler calls it, a reliable method for recovering fingerprints from human skin.

"Current techniques of powdering and fuming have never worked well on skin, with the ability to only enhance fingermarks less than three hours old," Dr Spindler said.

"The use of immunogenic reagents targeted at specific markers in body fluids will improve the ability to enhance fingermarks on problematical surfaces such as human skin.

"On other surfaces existing methods are most effective recovering fresh fingermarks that contain a reasonable level of moisture. That has meant that people with dry skin are weak donors and evidence is rapidly degraded in dry conditions or after long storage.

"The targeting of amino acids in fingerprint detection has been around since the mid-'50s, but its use has been limited largely to porous surfaces like paper because of the fragility of amino acid secretions on non-porous surfaces.

"Our work has been a proof-of-concept for a reagent that links amino acid-binding antibodies to gold nanoparticles, with the nanoparticles giving sharper detail in developed fingerprints."

With the support of the Australian Federal Police it is hoped to build on the results to develop a reliable and cost-effective technique with the potential to deliver "transformational outcomes for law enforcement."

In addition to Dr Spindler, chief investigators and key personnel have included the Director of the UTS Centre for Forensic Science Professor Claude Roux, Professor Chris Lennard from the University of Canberra, Professor Oliver Hofstetter from Northern Illinois University and Dr Andrew McDonagh from UTS.

####

For more information, please click here

Contacts:
(Media enquiries)
Terry Clinton
(+61 2 9514 1623)

Copyright © University of Technology, Sydney

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

Phagraphene, a 'relative' of graphene, discovered September 2nd, 2015

A marine creature's magic trick explained: Crystal structures on the sea sapphire's back appear differently depending on the angle of reflection September 2nd, 2015

National Science Foundation Selects SUNY Poly CNSE for Expanded $2.1M Northeast Advanced Technological Education Center: NSF Center Locates to NanoCollege in Support of Flourishing Tech Industry in NYS September 1st, 2015

RUSNANOPRIZE Directorate Announces New Deadline for Nominations Submission September 11, 2015 September 1st, 2015

Law enforcement/Anti-Counterfeiting/Security/Loss prevention

'Quantum dot' technology may help light the future August 19th, 2015

World's smallest spirals could guard against identity theft June 4th, 2015

New sensing tech could help detect diseases, fraudulent art, chemical weapons June 1st, 2015

Nanotech Secures Additional Patents in Advanced Security Features: New patented features gain attention from the banknote industry May 30th, 2015

Discoveries

Phagraphene, a 'relative' of graphene, discovered September 2nd, 2015

A marine creature's magic trick explained: Crystal structures on the sea sapphire's back appear differently depending on the angle of reflection September 2nd, 2015

Hot electrons point the way to perfect light absorption: Physicists study how to achieve perfect absorption of light with the help of rough ultrathin films September 1st, 2015

Using DNA origami to build nanodevices of the future September 1st, 2015

Research partnerships

Sustainable nanotechnology center September 1st, 2015

$200K Awarded to Develop In Vitro Lung Test for Toxicity of Inhaled Nanomaterials: In Vitro Lung Test Designed to Protect Human Health and Replace Animal Testing September 1st, 2015

Hot electrons point the way to perfect light absorption: Physicists study how to achieve perfect absorption of light with the help of rough ultrathin films September 1st, 2015

Nanocatalysts improve processes for the petrochemical industry August 28th, 2015

NanoNews-Digest
The latest news from around the world, FREE



  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project







Car Brands
Buy website traffic