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NCJ Number: NCJ 226810   Add to Shopping cart   Find in a Library
Title: Microfluidic DNA Extraction and Purification from Forensic Samples: Towards Rapid, Fully Integrated STR Analysis
Author(s): Eugene Tan ; Heidi Giese ; Daniel M. Hartmann
Date Published: 12/2008
Page Count: 87
Sponsoring Agency: National Institute of Justice
US Department of Justice
Office of Justice Programs
United States of America
Grant Number: 2007-DN-BX-K184
Sale Source: National Institute of Justice/NCJRS
Box 6000
Rockville, MD 20849
United States of America

NCJRS Photocopy Services
Box 6000
Rockville, MD 20849-6000
United States of America
Document: PDF 
Type: Report (Study/Research) ; Report (Technical)
Language: English
Country: United States of America
Annotation: This report on a project to develop a module for the extraction and purification of DNA from forensic samples in under 15 minutes in a disposable plastic biochip addresses the successful completion of the four proposed milestones.
Abstract: First, the selection and optimization of a DNA extraction and purification protocol was completed with the selection of a guanidinium chloride (GuHCI) and silica-based extraction and purification protocol for microfluidic purification. Second, the selection and optimization of a DNA extraction and purification media was completed with the selection of a commercially available silica fiber membrane that allows purification of DNA from large volumes (in excess of 1 ml) of whole blood with an efficiency of approximately 70 percent. Third, the design and fabrication of the microfluidic extraction and purification biochip milestone was completed with the successful fabrication, demonstration, and optimization of a microfluidic biochip and protocol that can purify multiple samples simultaneously in 8 minutes. The biochip has a demonstrated capacity of over 10 mg and a purification efficiency of over 50 percent for blood input volumes of less than 100 ml. Fourth, biochip DNA extraction and purification from mock crime scene and database samples was completed with the successful DNA purification and subsequent successful inhibitor-free multiplex PCR amplification of blood, saliva, and cellular samples from cotton swabs; touch samples from cotton swabs; blood and saliva on cotton, denim, and polyester; and buccal cells from swabs. 31 figures, 3 tables, and 29 references
Main Term(s): Criminology
Index Term(s): Blood/body fluid analysis ; Forensics/Forensic Sciences ; Investigative techniques ; Blood stains ; DNA fingerprinting ; NIJ final report
   
  To cite this abstract, use the following link:
https://www.ncjrs.gov/App/Publications/abstract.aspx?ID=248809

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