Novel non-toxic and red luminescent sensor based on Eu3+:Y2Ti2O7/SiO2 nano-powder for latent fingerprint detection

Saif, M.; Shebl, Magdy; Nabeel, A.I.; Shokry, R.; Hafez, H.M.; Mbarek, Aïcha; Damak, Kamel; Elleuch, Riadh; Abdel‐Mottaleb, M. S. A.

doi:10.1016/j.snb.2015.05.040

Cited by 102 publications

(33 citation statements)

References 43 publications

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“…In practice, a good contrast between fingerprint impression and substrate background is sought after for LFPs development with highly detailed and distinct features for an individual identification. In addition, a better adherence of labeling powder with ridges present in fingerprint patterns is a prerequisite and equally important . Figure a–c compares fresh LFPs impressions onto transparent glass, LFPs after D0.5S2 powder labeling in bright light condition and under 395 nm UV illumination, respectively.…”

Section: Resultsmentioning

confidence: 99%

Latent Fingerprint Imaging Using Dy and Sm Codoped HfO₂ Nanophosphors: Structure and Luminescence Properties

Sandeep

Bahadur

Rath

2019

Part & Part Syst Charact

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The development of latent fingerprints (LFPs) detected at the site of crime is considered as an imperative physical evidence in forensic investigations. Herein, a rapid and cost‐effective approach using nonhazardous Dy and Sm codoped HfO2 nanophosphors is demonstrated to be utilized for LFP imaging. Sol–gel method can produce Dy and Sm codoped HfO2 of monoclinic phase with crystallite size ranging from ≈10 to 25 nm. While selected area electron diffraction and lattice spacing calculated from high‐resolution transmission electron microscopy confirm monoclinic phase, Le‐Bail profile refinement of X‐ray diffraction (XRD) patterns demonstrate an exponential increase in lattice volume with incorporating various concentrations of Dy and Sm in HfO2 lattice. Exciting Dy and Sm codoped HfO2 with 393 nm photoluminescence spectra show emissions in blue, yellow, and near red regions emerging primarily due to energy transfer from Dy3+ to Sm3+ through multipolar interaction suggested by time resolved decay spectra. Combining excitation and emission spectra, an energy band diagram is proposed. Owing to excellent emissions, Dy and Sm codoped HfO2 are explored for LFP imaging with good selectivity and resolution over multivariate surfaces like float glass and aluminum foil. The third‐level details like enclosure and termination–bifurcation are extracted due to nanosized nature of particles.

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Section: Resultsmentioning

confidence: 99%

Latent Fingerprint Imaging Using Dy and Sm Codoped HfO₂ Nanophosphors: Structure and Luminescence Properties

Sandeep

Bahadur

Rath

2019

Part & Part Syst Charact

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“…Nanopowders of the europium‐ and terbium‐doped UCNPs were used as they gave the highest luminescence. In another report the authors synthesized the UCNP with titanate instead of zirconate to give Y 2 Ti 2 O 7 :Eu 3+ @SiO 2 (Saif et al, ). They observed good adhesion of the nanopowder to fingermark ridges on nonporous surfaces.…”

Section: Upconvertersmentioning

confidence: 99%

Nanoparticles used for fingermark detection—A comprehensive review

Kanodarwala

Moret

Spindler

et al. 2019

WIREs Forensic Science

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Nanoparticles (NPs) have been used in numerous fields such as medicine, imaging, and electronics to cite just a few. In forensic science, NPs have been researched specifically for the detection of fingermarks. Their small size, surface functionalization ability, and luminescence properties can potentially lead to better resolution, increased sensitivity, and selectivity. This paper offers an extensive review of the various NP types investigated over the past three decades. NPs are sorted into seven categories, namely metal, metal oxide, quantum dots (QDs), carbon dots (C‐dots), silica (SiO2), and upconverters NPs (UCNPs) as well as a miscellaneous section. Each type is discussed in details from a critical viewpoint. The most promising NP types are also identified. This article is categorized under: Forensic Chemistry and Trace Evidence > Fingermarks and Other Marks

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“…Human latent fingerprints or footprints play an important role in forensic science to identify offenders. Latent fingerprints are invisible, a matter that requires tools for visualization . Powdering is the main physical tool used for fingerprint visualization at any crime scene.…”

Section: Introductionmentioning

confidence: 99%

“…It consists of strongly fluorescent materials and can be detected with UV or blue light sources. Several organic compounds such as acridine orange, rhodamine 6G, etc., have been reported for luminescent powder used for developing weak prints from non‐porous surfaces . Luminescent powders based on pure organic compounds are photo‐unstable and still on the bulk scale.…”

Section: Introductionmentioning

confidence: 99%

Novel bifunctional lanthanide‐centered nanophosphors for latent fingerprint detection and anti‐counterfeiting applications

Saif

Fouad

2019

Applied Organom Chemis

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Production of hybrid organic/inorganic complexes such as lanthanide phosphors in the nanodomain for human fingerprint visualization and anti‐counterfeiting ink under biocompatible UVA and blue light has not yet been studied that thoroughly. This paper presents the preparation of novel, bifunctional, green and red nanophosphors based on Eu3+ and Tb3+ complexes with quinolinone ligand (H2L). They have been prepared and characterized for latent fingerprint detection and anti‐counterfeiting ink applications. The analytical data confirm that the ligand acts in a monoanionic bidentate manner through OO donor sites, forming mononuclear complexes, formulated as [Ln(HL)3(C2H5OH)3] (Ln = Eu3+ or Tb3+; L = 1‐ethyl‐4‐hydroxy‐3‐(nitroacetyl)quinolin‐2‐(1H)‐one). The Eu3+ and Tb3+ complexes have nanospherical morphologies with average particle sizes of 17 and 5 nm, respectively. Pure red and green photoluminescence with long lifetime values has been obtained from the Eu3+ and Tb3+ complexes, respectively, under non‐harmful UVA and blue illumination. Latent fingerprint details, including their characteristic three levels, have been clearly identified from various forensic (non‐porous, semi‐porous, highly fluorescent porous) substrates using red (Eu3+) and green (Tb3+) nanophosphors. The green nanophosphor powder has a greater capability for visualizing latent fingerprints from highly fluorescent porous surfaces as compared to the red one. Both nanophosphor complexes have been used to develop luminescent ink for anti‐counterfeiting applications.

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Novel non-toxic and red luminescent sensor based on Eu3+:Y2Ti2O7/SiO2 nano-powder for latent fingerprint detection

Cited by 102 publications

References 43 publications

Latent Fingerprint Imaging Using Dy and Sm Codoped HfO₂ Nanophosphors: Structure and Luminescence Properties

Latent Fingerprint Imaging Using Dy and Sm Codoped HfO₂ Nanophosphors: Structure and Luminescence Properties

Nanoparticles used for fingermark detection—A comprehensive review

Novel bifunctional lanthanide‐centered nanophosphors for latent fingerprint detection and anti‐counterfeiting applications

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Novel non-toxic and red luminescent sensor based on Eu3+:Y2Ti2O7/SiO2 nano-powder for latent fingerprint detection

Cited by 102 publications

References 43 publications

Latent Fingerprint Imaging Using Dy and Sm Codoped HfO2 Nanophosphors: Structure and Luminescence Properties

Latent Fingerprint Imaging Using Dy and Sm Codoped HfO2 Nanophosphors: Structure and Luminescence Properties

Nanoparticles used for fingermark detection—A comprehensive review

Novel bifunctional lanthanide‐centered nanophosphors for latent fingerprint detection and anti‐counterfeiting applications

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Product

Resources

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Latent Fingerprint Imaging Using Dy and Sm Codoped HfO₂ Nanophosphors: Structure and Luminescence Properties

Latent Fingerprint Imaging Using Dy and Sm Codoped HfO₂ Nanophosphors: Structure and Luminescence Properties