Navigation Links
Chemistry Researchers Create New Tool to Visualize Bloodstains
Date:11/19/2010

COLUMBIA, S.C., Nov. 19, 2010 /PRNewswire-USNewswire/ -- Chemists at the University of South Carolina have developed a camera with the ability to see the invisible - and more.

The new technology, called multimode imaging in the thermal infrared, could eventually be used in crime-scene investigations, since it can capture blood stains that the human eye can't see.

Drs. Stephen Morgan and Michael Myrick, professors in the department of chemistry and biochemistry in USC's College of Arts and Sciences, published their work in a series of three reports in the American Chemical Society's Analytical Chemistry, a semi-monthly journal. Graduate students Heather Brooke, Megan Baranowski and Jessica McCutcheon were also authors of the study.

"Detecting blood is like the holy grail of forensics," Morgan said. "When you are able to detect blood at a crime scene, you know something bad has happened."

Blood detection is important at a crime scene because blood can be typed and can provide DNA, and pattern analysis of blood spatter may be able to help determine the sequence of events, he said.

He said the luminol test, which is now widely used to detect blood stains and other body fluids at crime scenes, has several disadvantages. Luminol is potentially toxic; it can dilute blood solutions below levels where DNA can be retrieved; it can cause blood spatter patterns to smear, and it can produce false positive results.

Using the camera means that the surface doesn't have to be changed in any way while it is being examined. "With this, we view the scene without touching it," Morgan said.

Morgan and Myrick built and tested a camera that captures hundreds of images in a few seconds, while illuminating its subjects with pulses of invisible infrared light waves. Some of these photos are taken through special filters, which block out particular wavelengths, allowing certain chemical components to stand out from their surroundings. One of the chemicals it can identify is blood, even when it is diluted to as little as one part blood in 100 parts water.

The system they designed enables the camera to detect contrasts, thus making invisible stains and patterns emerge from a background of four different types of fabric. It can also distinguish whether the stain was made by substances such as blood, household bleach, rust, soda and coffee.

"This technique can be used to detect a contrast for any surface stain," Morgan said, adding it would have other possible forensic and industrial applications.

"The advantage is we can identify a spot where there is blood and then do confirmatory tests and DNA tests," he said.

Morgan said more tests are needed before the camera finds its way to crime scenes.

"This is not next week's CSI tool," he said. "We still have to do validation studies and real-world studies."

Funding for the study came from the National Institute of Justice. The researchers have been working on the project since January 2008.

This news release was issued on behalf of Newswise(TM). For more information, visit http://www.newswise.com.


'/>"/>
SOURCE University of South Carolina
Copyright©2010 PR Newswire.
All rights reserved

Related medicine technology :

1. Almac and the Royal Society of Chemistry Host a Workshop on the use of Analytical Techniques to Control and Monitor Solid Form
2. Dalton and Lonza Announce Co-operation to Provide Contract Chemistry Services and Manufacturing
3. Abaxis Increases Reagent Disc Offering for Physician Office Market With Release of BioChemistry Panel Plus
4. Novation® Awards Siemens as Single Source for Urine Chemistry and Microbiology Systems and Tests
5. Mindray to Attend the 2010 American Association for Clinical Chemistry Conference
6. Abbott to Feature Novel Tests and New Upgrades to Testing Platforms at American Association for Clinical Chemistry Lab Expo
7. Caliper Life Sciences Partners with Prestwick Chemical to Offer Customized Chemistry and Biology Programs for Drug Discovery Research
8. Roche Scientist Recognized for Excellence in Peptide Chemistry
9. Rib-X Pharmaceuticals, Inc. Co-Founder, Thomas A. Steitz, Ph.D., Awarded the 2009 Nobel Prize in Chemistry
10. Sigma-Aldrich(R) Partners With Flow Chemistry Leader ThalesNano to Provide CatCart(R) Catalyst Products for Rapidly Growing Market
11. UPDATED: Elsevier Online Opinion Survey Reveals Researchers Ready to Push Scientific Search and Discovery to the Next Level
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/10/2016)... DIEGO , Feb. 10, 2016 ALSP, Inc. ... , MD as Consultant for Medical Affairs in preparation for ... Michael Pierschbacher , PhD, CEO, stated, "We are pleased ... We look forward to working with an individual of such ... We look forward to drawing deeply on his broad experience ...
(Date:2/10/2016)... , Feb. 10, 2016 Intouch Solutions, a ... identified an industry-wide trend regarding the evolution of ... organizations to efficiently deliver compelling sales presentations via ... and another in 2015, Intouch uncovered that while ... devices and DSAs, many are not using them ...
(Date:2/10/2016)... HALLANDALE, Fla. , Feb. 9, 2016  Until ... sagging were surgery or liposuction. Thankfully, the FDA approved ... freezing them to death. Coolsculpting was originally approved in ... to the thighs and now the chin. With this ... Wellness Center can use a smaller applicator, the CoolMini, ...
Breaking Medicine Technology:
(Date:2/11/2016)... ... 11, 2016 , ... As part of their 2015 end of year funding ... Foundation (MDRTF), has gifted $10,000 to University of Chicago to support ovarian cancer research ... , “We are honored to support a promising young investigator from Dr. Lengyel’s lab ...
(Date:2/10/2016)... ... February 10, 2016 , ... LaserShip, a regional parcel ... the Food Bank of Eastern Michigan last Friday in order to aid in the ... the Midwest to include a facility located in Clio, only 15 miles away from ...
(Date:2/10/2016)... ... 10, 2016 , ... InDemand Interpreting , a leading ... with Heart City Health Center to improve access to language services ... Health Center has provided the Elkhart community with access to high quality, affordable ...
(Date:2/10/2016)... ... , ... 10 Best Water is excited to announce a new ... that topped the list as a result of their commitment to offering clients creative, ... Tibet 5100, a top notch water company that specializes in providing the public with ...
(Date:2/10/2016)... ... 2016 , ... United Benefit Advisors (UBA), the nation’s leading ... its growing list of Partner Firms. S.S. Nesbitt is headquartered in Birmingham, ... and in between. , Harnessing the experience and insights of the agency’s team ...
Breaking Medicine News(10 mins):