Starch-based near-infrared organic fluorophores for the imaging of latent fingerprints

Fu, Hongbing; Ran, Chenhui; Xu, Zhi‐Kang; He, Jun; Man, Zhongwei; Zheng, Lei; Wang, Ping

doi:10.1039/d2tc03532d

Cited by 8 publications

(3 citation statements)

References 33 publications

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“…In this regard, organic fluorescent molecules have been used as good alternatives for LFM identification as they are cost-effective and can be structurally modified easily. 2,8,[25][26][27][28][29] However, most of the articles discussed only level 1-2 details with organic fluorophores and took longer time (45 min) to develop LFM images. [30][31][32][33][34][35] In general, pyrene derivatives show weak fluorescence in the solid state.…”

Section: Introductionmentioning

confidence: 99%

Real-time visualization of latent fingermarks with level 3 details based on a solid state emissive organic fluorophore using the powder dusting method

Shabashini,

Richard,

Panda

et al. 2024

Mater. Adv.

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Section: Introductionmentioning

confidence: 99%

Real-time visualization of latent fingermarks with level 3 details based on a solid state emissive organic fluorophore using the powder dusting method

Shabashini,

Richard,

Panda

et al. 2024

Mater. Adv.

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“…In recent years, AIE materials have been used to visualize the latent fingerprints (LFPs) [24–27] . Tetraphenylethylene (TPE) with aggregation‐induced emission property is the classical structure for easy functionalization, high quantum yields and good optical stability in the field of latent fingerprints imaging [28–30] . Tang et al [31] .…”

Section: Introductionmentioning

confidence: 99%

“…[24][25][26][27] Tetraphenylethylene (TPE) with aggregation-induced emission property is the classical structure for easy functionalization, high quantum yields and good optical stability in the field of latent fingerprints imaging. [28][29][30] Tang et al [31] presented the TPE-based powder to achieve latent fingerprint imaging by electrostatic adsorption. Liu et al [32] used TPE-based dye to reveal the level 2 details of latent fingerprints.…”

Section: Introductionmentioning

confidence: 99%

Visualizing Fingerprints on Porous Objects by an Optical Sensor Minimally Destructive to DNA Based on Aggregation‐Induced Emission

Liang,

Hu,

Zhao

et al. 2023

ChemistrySelect

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Development of latent fingerprints (LFPs) at the scene played the important role in forensic investigations by reconstructing crime trajectory and individualizing suspect. In this work, the optical sensor named TPE‐LL with aggregation‐induced emission property was constructed and used in LFPs visualization. The sensor exhibited a satisfactory linear relationship to tryptophan (Trp) in the range of 1–20 nM with the low detection limit of 0.15 nM. The samples were collected from 60 volunteers, with a total of 7200 impressed samples and 160 natural samples. Significantly, the high‐resolution fingerprints images with high fidelity and contrast containing pore features were obtained from impressed samples left on porous object for 15 days. Meanwhile, the relative complete STR typing profiles of deposited DNA were obtained and the identification rate of DNA after the develop process was 76.5 %, suggesting that the method was low destructive to DNA. The results indicated that the sensor provided promising perspectives on solving the current technical problems in the field of forensic science and technology

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Recent Progress of Advanced AIE Materials for Visualization of 3‐Level Latent Fingerprints

Zhuang,

Wen,

Lai

et al. 2024

ChemPhotoChem

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The 3‐level features of Latent fingerprints (LFPs) are pivotal in linking suspects with problematic or incomplete fingerprint data, constituting one of the most robust forms of evidence. Aggregation‐induced emission (AIE) materials, known for their heightened emissive properties in high aggregation states, provide a robust and powerful approach for developing techniques for 3‐level details of LFPs. So far, tremendous efforts have been devoted to solving high background fluorescence interference during the 3‐level LFPs visualization process. This review commences with an overview of 3‐level features and summarizes the interaction and mechanism of visualizing LFPs involving AIE materials and LFPs secretions. Moreover, it encompasses strategies to enhance the contrast and brightness of 3‐level LFPs images. We highlight the mechanism of AIE's physicochemical properties and their effects on the visualization of 3‐level LFPs. Additionally, we provide insights into potential challenges and opportunities in this emerging field.

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Starch-based near-infrared organic fluorophores for the imaging of latent fingerprints

Abstract: Visualization of latent fingerprint (LFP) is important in the field of forensic identification and criminal investigation and requires fluorescent materials with near-infrared (NIR) emission to suppress background fluorescence, and simulataneously...

Cited by 8 publications

References 33 publications

Real-time visualization of latent fingermarks with level 3 details based on a solid state emissive organic fluorophore using the powder dusting method

Real-time visualization of latent fingermarks with level 3 details based on a solid state emissive organic fluorophore using the powder dusting method

Visualizing Fingerprints on Porous Objects by an Optical Sensor Minimally Destructive to DNA Based on Aggregation‐Induced Emission

Recent Progress of Advanced AIE Materials for Visualization of 3‐Level Latent Fingerprints

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