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A pyrene formulation for fluorometric visualization of latent fingermarks
Kirti Kumari Sharma1, Gavash Harsha Kannikanti1, Tulsidas Ramachandra Rao Baggi2
1Crop Protection Chemicals Division and AcSIR-Indian Institute of Chemical Technology, Uppal Road Tarnaka, Hyderabad 500007, India.
Methods and Applications in Fluorescence
|April 14, 2018
Summary
Pyrene formulations effectively develop latent fingerprints on various surfaces. This fluorescent molecule offers high-contrast ridge details for forensic applications.
Area of Science:
- Forensic Science
- Analytical Chemistry
Background:
- Latent fingerprint development is crucial in forensic investigations.
- Traditional methods may have limitations on diverse surfaces.
Purpose of the Study:
- To evaluate pyrene as a fluorescent agent for latent fingerprint development.
- To optimize pyrene formulations for various surfaces and conditions.
Main Methods:
- Systematic testing of pyrene formulations with varying concentrations.
- Evaluation across porous, non-porous, and semi-porous substrates.
- Analysis of time-dependent, temperature-dependent, and depleted fingerprint development.
Main Results:
- Pyrene formulations successfully developed latent fingerprints on multiple surfaces.
- Developed prints exhibited clear, high-contrast primary, secondary, and tertiary ridge details under 366 nm illumination.
- Optimized formulations demonstrated stability and effectiveness on depleted fingerprints.
Conclusions:
- Pyrene is a versatile fluorescent label for latent fingerprint detection.
- High quantum yield fluorescent molecules show significant potential in forensic science.
- This method enhances the ability to recover detailed ridge information from latent prints.
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