Aggregation-induced emission luminogens for latent fingerprint detection

Area of Science:

• Forensic Science
• Materials Science
• Chemistry

Background:

• Fingerprints are crucial for individual identification, especially in criminal investigations.
• Latent fingerprints (LFPs) are invisible and require sensitive detection methods for crime scene analysis.
• Current LFP detection methods have limitations, necessitating safer and more sustainable alternatives.

Purpose of the Study:

• To explore aggregation-induced emission luminogens (AIEgens) as a novel strategy for latent fingerprint (LFP) visualization.
• To provide a comparative analysis of different AIEgen types for LFP development and detection.
• To address limitations of existing AIEgens and propose strategies for improved performance.

Main Methods:

• Comparative analysis of various AIEgens, including organic compounds, metal complexes, nanoparticles, and polymers.
• Evaluation of AIEgens for their efficiency, sensitivity, and convenience in LFP detection.
• Exploration of strategies to overcome current limitations of AIE-based LFP techniques.

Main Results:

• AIEgens demonstrate unique photophysical properties suitable for on-site LFP visualization.
• Different AIEgen classes show varying efficiencies and potential applications in forensic analysis.
• Insights into optimizing AIEgens for enhanced LFP development and detection are provided.

Conclusions:

• AIEgens present a promising avenue for developing advanced, safe, and environmentally friendly latent fingerprint detection techniques.
• Further research into AIEgens can significantly contribute to the advancement of forensic science and criminal investigations.
• The study encourages broader investigation into AIEgens for latent fingerprint analysis.