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- Title
Visualization of latent fingerprints based on composites of dye-doped cellulose with red emissive fluorescence.
- Authors
Li, Zhan-Chao; Li, Da-Wu; Liu, Zhao-Hui; Wu, Li-Ping; lv, Xiao-Sen
- Abstract
Novel cellulose-based composites were developed by integrating the rhodamine B (RhB) with cellulose microparticles and used to detect latent fingerprints (LFPs). The cellulose-based composites containing the various contents of RhB (5.4, 9.7, and 19.6 mg g−1) with good luminescence were obtained by simple adsorption method. Under 365 nm light irradiation, cellulose-based composite can produce the bright red fluorescence in solid-state. The images of the LFPs on the surface of the substrates with variable textures and colors can be detected with integral ridge patterns and finely clear detail characteristics in level 2 (such as scar, core, island, bifurcation and termination) and level 3 (such as sweat holes and line shape). The fresh and aging LFPs can be finely detected by the cellulose-based composite with the little interference of background because the red-emissive can efficiently avoid the interference from self-fluorescence of the substrates. These results suggested that the cellulose-based composite with favorable applicability and dependability could be a promising candidate for the visualization of the LFPs.
- Subjects
FORENSIC fingerprinting; CELLULOSE; DATA visualization; FLUORESCENCE; LUMINESCENCE
- Publication
Cellulose, 2024, Vol 31, Issue 2, p1105
- ISSN
0969-0239
- Publication type
Article
- DOI
10.1007/s10570-023-05638-2