000 02172nam a2200241 4500
001 393968
090 _a393968
100 _a20160531d2014 y0pory50 ba
101 _aeng
200 _aMicrochip analyzer for forensic short tandem repeat typing of single cells
_bRecurso eletrónico
_efinal technical report
_fTao Geng, Richard A. Mathies
210 _a[Rockville, MD]
_cNational Criminal Justice Reference Service (NCJRS)
_d2014
215 _a1 CD-ROM
_d12 cm
300 _aResearch report submitted to the U.S. Department of Justice, Award Number: 2009-DN-BX-K180. Ficheiro de 3,15 MB em formato PDF (39 p.)
330 _aShort tandem repeat (STR) typing at the single-cell level is a promising tool for human forensicidentification when the biological evidence materials are comprised of mixtures of cells from multiple individuals at relatively low concentrations. Here we describe a novel single-cell STR typing method with high sensitivity, fidelity and throughput that combines microfluidic droplet generation with single-cell multiplex emulsion PCR. Individual cells are separately isolated within microdroplets that subsequently function as miniaturized reactors for PCR amplification, producing high quality STR profiles from single cells at high throughput. CONTENTS: 1. Introduction. 2. Methods. 2.1 Microfluidic device fabrication. 2.2 Preparation of primer-functionalized beads. 2.3 Cell culture and sample preparation. 2.4 Microdroplet generation. 2.5 Cell lysis and DNA purification. 2.6 Emulsion PCR. 2.7 Bead recovery. 2.8 Secondary PCR and fragment sizing analysis. 3. Results. 3.1 Microbead-based solid-phase PCR in bulk solutions. 3.2 Agarose microdroplet-based emulsion PCR. 3.3 Single-molecule PCR in microdroplets. 3.4 Single-cell STR typing in microdroplets. 4. Conclusions. 5. References. 6. Dissemination of research findings.
606 _aIDENTIFICAÇÃO DE PESSOAS
_9343105
606 _aQUÍMICA FORENSE
_9343048
606 _aANÁLISE LABORATORIAL
_9326721
700 _aGENG
_bTao
_9358134
701 _aMATHIES
_bRichard A.
_9358135
955 _xOferta