TY - JOUR
T1 - Characterization of Bixin by UV-Visible Spectroscopy and HPLC, and Its Application as Latent Fingermark Developer
AU - Bueno, Danielle Tapia
AU - Leitzke, Amanda Fonseca
AU - Crizel, Rosane Lopes
AU - Jansen-Alves, Cristina
AU - Bertizzolo, Emanuel Gomes
AU - da Silva, Juliana Porciuncula
AU - Sejanes, Gabrielly Quartieri
AU - Mariotti, Kristiane de Cássia
AU - de Pereira, Claudio Martin Pereira
N1 - Publisher Copyright:
© 2024 by the authors.
PY - 2024/3/3
Y1 - 2024/3/3
N2 - Fingerprints are essential for human identification and are valuable tools in criminal investigations. The pursuit of new materials for digital printing is expanding, with increasing interest in natural compounds such as bixin, sourced from annatto seeds. Despite its traditional use as a natural dye with medicinal properties, the potential of bixin in papilloscopy remains largely untapped. In this study, we meticulously extracted bixin from annatto seeds and meticulously developed composites incorporating zinc carbonate (bixin/ZnCO3) and kaolinite (bixin/kaolinite). UV-visible spectroscopy was used for characterization, and the extracted bixin showed absorption peaks at 429, 453, and 481 nm, which were very similar to standard peaks at 429, 457, and 487 nm. The two samples also had the same retention times (7.07 min) according to further liquid chromatography analysis. Sweat pores were easier to detect thanks to the effectiveness of the bixin/ZnCO3 and bixin/kaolinite composites in creating high contrast sebaceous and natural latent fingerprints. These results highlight the composites’ potential as novel and fascinating instruments for papilloscopy applications, which might also improve forensic investigations.
AB - Fingerprints are essential for human identification and are valuable tools in criminal investigations. The pursuit of new materials for digital printing is expanding, with increasing interest in natural compounds such as bixin, sourced from annatto seeds. Despite its traditional use as a natural dye with medicinal properties, the potential of bixin in papilloscopy remains largely untapped. In this study, we meticulously extracted bixin from annatto seeds and meticulously developed composites incorporating zinc carbonate (bixin/ZnCO3) and kaolinite (bixin/kaolinite). UV-visible spectroscopy was used for characterization, and the extracted bixin showed absorption peaks at 429, 453, and 481 nm, which were very similar to standard peaks at 429, 457, and 487 nm. The two samples also had the same retention times (7.07 min) according to further liquid chromatography analysis. Sweat pores were easier to detect thanks to the effectiveness of the bixin/ZnCO3 and bixin/kaolinite composites in creating high contrast sebaceous and natural latent fingerprints. These results highlight the composites’ potential as novel and fascinating instruments for papilloscopy applications, which might also improve forensic investigations.
KW - bixin
KW - composites
KW - fingermark
KW - fingerprint revealers
KW - kaolinite
KW - liquid chromatography
KW - papilloscopy
KW - zinc carbonate
UR - http://www.scopus.com/inward/record.url?scp=85188819536&partnerID=8YFLogxK
U2 - 10.3390/analytica5010007
DO - 10.3390/analytica5010007
M3 - Article
AN - SCOPUS:85188819536
VL - 5
SP - 107
EP - 118
JO - Analytica
JF - Analytica
IS - 1
ER -