Nanotechnology Now





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

Researchers find the 'key' to quantum network solution May 25th, 2015

One step closer to a single-molecule device: Columbia Engineering researchers first to create a single-molecule diode -- the ultimate in miniaturization for electronic devices -- with potential for real-world applications May 25th, 2015

DNA Double Helix Does Double Duty in Assembling Arrays of Nanoparticles: Synthetic pieces of biological molecule form framework and glue for making nanoparticle clusters and arrays May 25th, 2015

Engineering Phase Changes in Nanoparticle Arrays: Scientists alter attractive and repulsive forces between DNA-linked particles to make dynamic, phase-shifting forms of nanomaterials May 25th, 2015

Law enforcement/Anti-Counterfeiting/Security/Loss prevention

Better sensors for medical imaging, contraband detection: Magnetic-field detector is 1,000 times more efficient than its predecessors April 6th, 2015

Optics, nanotechnology combined to create low-cost sensor for gases April 3rd, 2015

UT Dallas engineers twist nanofibers to create structures tougher than bulletproof vests March 27th, 2015

Pens filled with high-tech inks for do-it-yourself sensors March 3rd, 2015

Discoveries

Researchers find the 'key' to quantum network solution May 25th, 2015

One step closer to a single-molecule device: Columbia Engineering researchers first to create a single-molecule diode -- the ultimate in miniaturization for electronic devices -- with potential for real-world applications May 25th, 2015

DNA Double Helix Does Double Duty in Assembling Arrays of Nanoparticles: Synthetic pieces of biological molecule form framework and glue for making nanoparticle clusters and arrays May 25th, 2015

Engineering Phase Changes in Nanoparticle Arrays: Scientists alter attractive and repulsive forces between DNA-linked particles to make dynamic, phase-shifting forms of nanomaterials May 25th, 2015

Research partnerships

Supercomputer unlocks secrets of plant cells to pave the way for more resilient crops: IBM partners with University of Melbourne and UQ May 21st, 2015

Taking control of light emission: Researchers find a way of tuning light waves by pairing 2 exotic 2-D materials May 20th, 2015

Efficiency record for black silicon solar cells jumps to 22.1 percent: Aalto University's researchers improved their previous record by over 3 absolute percents in cooperation with Universitat Politècnica de Catalunya May 18th, 2015

Organic nanoparticles, more lethal to tumors: Carbon-based nanoparticles could be used to sensitize cancerous tumors to proton radiotherapy and induce more focused destruction of cancer cells, a new study shows May 18th, 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