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Publication
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| Research Title |
A Study Of Small Particle Reagent (SPR) Based On Zinc Oxide Nanoparticles For De-veloping Latent Fingerprints On Non-Porous Wet Surfaces |
| Date of Distribution |
28 November 2024 |
| Conference |
| Title of the Conference |
The 18th International Conference on Multi-functional Materials and Applications |
| Organiser |
King Mongkut’s Institute of Technology Ladkrabang, Thailand |
| Conference Place |
The Krungsri River Hotel |
| Province/State |
Ayutthaya, Thailand |
| Conference Date |
28 November 2024 |
| To |
30 November 2024 |
| Proceeding Paper |
| Volume |
2024 |
| Issue |
1 |
| Page |
260-268 |
| Editors/edition/publisher |
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| Abstract |
The objective of this study was to create an enhanced Small Particle Reagent (SPR) formulation that includes nano zinc oxide (ZnO) for the effective devel-opment of latent fingerprints on wet, non-porous surfaces, eliminating the neces-sity for drying. The synthesized nano ZnO, produced through Coprecipitation methods and analyzed using X-ray diffraction (XRD) and Scanning Electron Mi-croscopy (SEM), displayed a hexagonal Wurtzite crystal structure. The ZnO was integrated with three surfactants—Tetradecyltrimethylammonium bromide (TTAB), Sodium dodecyl sulfate (SDS), and Triton X-100 to improve its effi-ciency in fingerprint development. Latent fingerprints were placed on dark metal and dark plastic surfaces, immersed in deionized water and Bueng Kaen Nakhon lake water for different time intervals (1, 3, 7, 14, and 30 days). Among the sur-factants evaluated, Triton X-100 at 0.50 mL exhibited the greatest effectiveness in preparing the SPR, resulting in clear and comprehensive fingerprint patterns. The quality of fingerprints on metal substrates consistently surpassed that of those on plastic, while deionized water maintained fingerprint integrity more ef-fectively than natural lake water over time. This study shows that SPR, when en-hanced with nano ZnO and Triton X-100, effectively develops latent fingerprints on submerged, non-porous surfaces, providing adequate detail for forensic iden-tification, even after extended water exposure. |
| Author |
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| Peer Review Status |
มีผู้ประเมินอิสระ |
| Level of Conference |
นานาชาติ |
| Type of Proceeding |
Full paper |
| Type of Presentation |
Poster |
| Part of thesis |
true |
| ใช้สำหรับสำเร็จการศึกษา |
ไม่เป็น |
| Presentation awarding |
false |
| Attach file |
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| Citation |
0
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Journal Publication
ไทย