| 초록 |
Latent fingerprints at the real crime scene are one of the most important clues in criminal investigation. In previous study, we reported that poly[1-phenyl-2-(p-trimethylsilyl)phenylacetylene] (PTMSDPA) has large fractional free volume (FFV＞0.26 in film) due to the intrinsic amorphous structure and many microvoids. In this study, we investigated fluorescence (FL) imaging of latent fingerprint using PTMSDPA film. When the polymer film was exposed to the lipid/fatty acid mixture which is similar to main biochemical components of fingerprint, its FL emission immediately increased, and simultaneously, the FL band shifted to a shorter wavelength. It is expected that polymer film is a useful material for convenient, nondestructive fingerprint detection. Acknowledgement: This study was supported by Research Fund of National Forensic Service of Korea. |
