Micronised Egyptian blue pigment: A novel near-infrared luminescent fingerprint dusting powder

Errington, Benjamin; Lawson, Glen; Lewis, Simon W.; Smith, Gregory D.

doi:10.1016/j.dyepig.2016.05.008

Cited by 58 publications

(42 citation statements)

References 23 publications

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“…The conventional non‐fluorescent powders were employed to enhance LFPs in the criminal spots were well recognized for last few decades . The powder dusting method was most frequently adopted technique for developing LFPs in Forensic science . However, these powders were effective in LFPs detection under normal conditions.…”

Section: Resultsmentioning

confidence: 99%

Regioselective Synthesis, Antibacterial, Molecular Docking and Fingerprint Applications of 1‐Benzhydrylpiperazine Derivatized 1,4‐Disubstituted 1,2,3‐Triazoles

et al. 2018

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A series of ten 1,4‐Disubstituted 1,2,3‐Triazoles having 1‐benzhydrylpiperazine chemical scaffold were synthesized by one pot Cu (I) catalyzed click reaction and evaluated for their antibacterial activity against Escherichia Coli and Staphylococcus aureus by agar well diffusion method. Amongst all, 2‐chloro‐6‐fluorobenzyl substituted 1,2,3‐Triazole 7 e and 2,4‐dichlorobenzyl Triazole 7 f found to be more active compared to the Ciprofloxacin. To rationalize the binding interaction of compounds and the protein at active site, we performed Molecular docking study using a bacterial DNA Gyrase B protein. The docking energy of 2‐chloro‐6‐fluorobenzyl substituted Triazole 7 e and 2,4‐dichlorobenzyl Triazole 7 f was observed as −22.498 and −22.569 kcalmol−1 in comparison to reference drug Ciprofloxacin whose docking energy is −22.072 kcal mol−1. It also makes several hydrogen bonds with our conserved residue Ser55, Asp81 and Ile86. Furthermore, several hydrophobic contacts were also observed within the pocket. Finally, Latent fingerprint detection study indicated that the compound unsubstituted Triazole 7 a powder shows good adhesion and finger ridge details without back ground staining. The demonstrated method can be applied to detect fingerprints on all types of smooth surfaces and hence, it can be easily adopted for latent fingerprint detection. The in vitro and in silico activities conclusively revealed that our lead compounds may be used as a novel antibacterial agents.

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Section: Resultsmentioning

confidence: 99%

Regioselective Synthesis, Antibacterial, Molecular Docking and Fingerprint Applications of 1‐Benzhydrylpiperazine Derivatized 1,4‐Disubstituted 1,2,3‐Triazoles

et al. 2018

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“…After cyanoacrylate fuming followed by staining with NIR dyes, they obtained a considerable NIR absorption for ninhydrin, iodine/benzoflavone, and powdering techniques. Errington et al [49] also confirmed the enhancing capacity of micronized Egyptian blue pigment on non-porous surfaces as nearinfrared luminescent impressions. The test conducted by Li et al [50] using the NaYF4: Yb, Er, Gd fluorescent up-conversion nanorods (UCNRs) and Acid Yellow 7 (AY7) as a comparison confirms the superiority of UCNRs over AY7 on all test substrates.…”

Section: Infrared Spectroscopiesmentioning

confidence: 84%

Latent Fingerprint Enhancement Techniques: A Review

et al. 2020

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Fingerprint (FP) is a global mark used for personal identification. This study reviews recent latent fingerprint (LFP) enhancement techniques including metal oxides, multi-metal deposition (MMD-I/II/SMD/Au-ASP), optical, chemical, physical, and physicochemical. Furthermore, analytical techniques involved in identification, evaluation, and determination of pieces of evidence, and perpetrators including the SEM, TEM, UV-Vis, IR/NIR, SERS, SKP, DLS, MALDI-MSI, and TD analysis were also discussed. Among numerous LFP enhancement techniques, the application of chemical methods in combination with optical techniques has a greater place to recover FPs with sufficient quality. However, instead of using such a complex and costly enhancing agent, nowadays nanotechnology is using specific techniques used for visualizing, inspecting, gathering, and analyzing trace evidence at the scene of a crime. To indicate using simple metal oxides such as ZnO that have superior fluorescent properties and also that consider both the surface and cost of the materials, enhancement of the LFP is functioning.

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“…A second material, cuprorivaite powder, also known as Egyptian blue pigment, was later simultaneously identified by two research groups as a second NIR-emitting material perfect for forensic application. [80,92] Cuprorivaite exhibits strong photoluminescence in the NIR region (l max 910 nm) upon excitation at 630 nm, which corresponds to the B 1g -E g electronic transition. [92] The particle size of the powder was found to influence its colour intensity and so could be used to fine-tune the emissive properties.…”

Section: Current Nir Emitters For Fingermark Visualisationmentioning

confidence: 99%

Recent Trends Concerning Upconversion Nanoparticles and Near-IR Emissive Lanthanide Materials in the Context of Forensic Applications

Gee¹

2019

Aust. J. Chem.

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Upconversion nanoparticles (UCNPs) are materials that, upon absorbing multiple photons of low energy (e.g. infrared radiation), subsequently emit a single photon of higher energy, typically within the visible spectrum. The physics of these materials have been the subject of detailed investigations driven by the potential application of these materials as medical imaging devices. One largely overlooked application of UCNPs is forensic science, wherein the ability to produce visible light from infrared light sources would result in a new generation of fingerprint powders that circumvent background interference which can be encountered with visible and ultraviolet light sources. Using lower energy, infrared radiation would simultaneously improve the safety of forensic practitioners who often employ light sources in less than ideal locations. This review article covers the development of UCNPs, the use of infrared radiation to visualise fingerprints by the forensic sciences, and the potential benefits of applying UCNP materials over current approaches.

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Micronised Egyptian blue pigment: A novel near-infrared luminescent fingerprint dusting powder

Cited by 58 publications

References 23 publications

Regioselective Synthesis, Antibacterial, Molecular Docking and Fingerprint Applications of 1‐Benzhydrylpiperazine Derivatized 1,4‐Disubstituted 1,2,3‐Triazoles

Regioselective Synthesis, Antibacterial, Molecular Docking and Fingerprint Applications of 1‐Benzhydrylpiperazine Derivatized 1,4‐Disubstituted 1,2,3‐Triazoles

Latent Fingerprint Enhancement Techniques: A Review

Recent Trends Concerning Upconversion Nanoparticles and Near-IR Emissive Lanthanide Materials in the Context of Forensic Applications

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