Bloodstain age analysis: Toward solid state fluorescent lifetime measurements

Kevin Guo, Natalia Zhegalova, Samuel Achilefu, Mikhail Y. Berezin

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Scopus citations


One of the most pressing unsolved challenges in forensic science is the determination of time since deposition (TSD) of bloodstains at crime scenes. Despite a number of high profile cases over the past couple hundred years involving controversy over TSD methods, no reliable quantitative method has been established. We present here an approach that has yet to be explored by forensic scientist: measuring the fluorescence lifetime of solid-state blood. Such a method would allow for on-site measurements of bloodstains utilizing the appropriate device, and would allow for rapid results returned in real-time to investigators.

Original languageEnglish (US)
Title of host publicationAdvanced Biomedical and Clinical Diagnostic Systems XI
StatePublished - 2013
Externally publishedYes
EventAdvanced Biomedical and Clinical Diagnostic Systems XI - San Francisco, CA, United States
Duration: Feb 3 2013Feb 5 2013

Publication series

NameProgress in Biomedical Optics and Imaging - Proceedings of SPIE
ISSN (Print)1605-7422


ConferenceAdvanced Biomedical and Clinical Diagnostic Systems XI
Country/TerritoryUnited States
CitySan Francisco, CA


  • albumin
  • analysis
  • blood
  • forensics
  • tryptophan

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Atomic and Molecular Physics, and Optics
  • Radiology Nuclear Medicine and imaging


Dive into the research topics of 'Bloodstain age analysis: Toward solid state fluorescent lifetime measurements'. Together they form a unique fingerprint.

Cite this