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Fluorescence Lifetime Macro Imager for Biomedical Applications
Published on: April 7, 2023
Determination of post-mortem interval using in situ tissue optical fluorescence.
Everton Sérgio Estracanholli1, Cristina Kurachi, José Renato Vicente
1Instituto de Física de São Carlos, Universidade de São Paulo, São Carlos, SP, Brazil. evertonse@ursa.ifsc.usp.br
Optics Express
|May 13, 2009
Summary
This study introduces fluorescence spectroscopy for determining the post-mortem interval. This rapid, in situ method offers improved time resolution compared to conventional forensic techniques.
Area of Science:
- Forensic Science
- Biophysics
- Spectroscopy
Background:
- Conventional post-mortem interval determination relies on time-consuming laboratory tests of tissue or body fluids.
- Existing methods can be expensive and may lack the desired time resolution for accurate forensic analysis.
Purpose of the Study:
- To develop a rapid and in situ method for determining the post-mortem interval using fluorescence spectroscopy.
- To address the limitations of current forensic techniques for estimating time since death.
Main Methods:
- Utilized fluorescence spectroscopy to analyze time-dependent variations in spectral properties.
- Correlated spectral changes with the time elapsed after cessation of metabolic activity.
Main Results:
- Demonstrated the feasibility of using fluorescence spectroscopy for post-mortem interval estimation.
- Observed distinct time-dependent variations in fluorescence spectra post-mortem.
Conclusions:
- Fluorescence spectroscopy provides a promising, rapid, and in situ alternative for post-mortem interval determination.
- The method offers improved time resolution over traditional forensic approaches.
