Fluorescent benzazole dyes for bloodstain detection and bloody fingermark enhancement

Barros, Hélio L.; Mileski, Thayse; Dillenburg, Crisle; Stéfani, Valter

doi:10.1016/j.forc.2017.05.004

Cited by 25 publications

(14 citation statements)

References 10 publications

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“… Preliminary/Pilot studies : Various approaches were proposed to detect blood-containing fingermarks: nanoparticles in suspension [ 310 , 399 , 402 ], water-soluble benzalole dyes [ 452 ], ortho-phenylenediamine and Zar-Pro™ strips [ 453 ], or aggregation-induced emission involving serum albumin and tetraphenylethene maleimide [ 454 ]. Steam thermography has been investigated further in its ability to image ridge details from blood fingermarks left on fabrics [ 455 ], with positive results for hydrophobic fabrics such as acrylic and polyester.…”

Section: Fingermark Composition and Detectionmentioning

confidence: 99%

Interpol review of fingermarks and other body impressions 2016–2019

Bécue

Eldridge

Champod

2020

Forensic Science International: Synergy

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Section: Fingermark Composition and Detectionmentioning

confidence: 99%

Interpol review of fingermarks and other body impressions 2016–2019

Bécue

Eldridge

Champod

2020

Forensic Science International: Synergy

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“…This is a method that has to be used in sequence with other fingermark‐enhancing techniques when a bloody metallic item is examined . Barros et al tested several acid dyes (as a part of a sequential treatment) on painted aluminum and were able to develop/enhance bloody fingermarks. It is not clear, however, how many of the developed fingermarks were of identifiable quality.…”

Section: Chemical Methodsmentioning

confidence: 99%

Detection of Fingermarks—Applicability to Metallic Surfaces: A Literature Review

Christofidis

Morrissey

Birkett

2018

Journal of Forensic Sciences

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There are many different fingermark visualization techniques available, and the choice of methodology employed may be dependent on the surface type. This comprehensive review of the scientific literature evaluates the methodologies of fingermark enhancement methods that are applicable to metallic surfaces; optical, physical, chemical, and physicochemical methods are critically discussed. Methods that are currently used and those that have the potential to reduce the cost and time required to process evidence and increase the recovery rates are considered and are assessed against the Centre for Applied Science and Technology (CAST) and the International Fingerprint Research Group (IFRG) guidelines. The use of chemical imaging techniques in particular has increased the potential to recover fingermarks of sufficient quality for identification purposes. Presently, there appears to be a lack of detailed research pertaining to validation and thorough casework studies for fingermark enhancement techniques. Further studies incorporating these guidelines are recommended.KEYWORDS: forensic science, fingermarks, fingerprints, enhancement techniques, metallic surfaces, latent fingermarks Fingermarks are considered one of the most valuable types of physical evidence recovered from a crime scene. Fingermark casework is still the most common casework for forensic scientists despite the increase in use of DNA (1) to identify/exonerate suspects via bodily fluids (2). The ridge patterns found in fingermarks are permanent and can be used to individualize or exclude suspects from an investigation.Detection of fingermarks on metallic surfaces will be dependent upon the compounds remaining from the fingermark residue. Several detailed reviews have already been published on fingermark composition, but none have focused on fingermarks deposited on metallic surfaces (3,4).Generally, there are two types of fingermarks found at crime scenes: visible fingermarks, usually formed by fingers contaminated by a substance such as oil, fruit, grease, paint or blood, which are deposited on a surface; and latent fingermarks, which are invisible to the naked eye and are the most abundant type of fingermarks at crime scenes. Metallic surfaces are also commonly encountered in crime scenes and are ubiquitous in the environment. Surfaces such as the door of a car, objects like handles, weapons, and tools are usually made of steel. Cartridge cases are frequently recovered from crime scenes and are usually made of brass or nickel (5). There are a number of different techniques that can be applied to a surface to visualize latent fingermarks. The selection of a suitable technique depends on different factors, such as the expected composition of a fingermark, the ability of the chosen technique to be used in tandem with other techniques, and the nature of the substrate. In this review, the focus will be on fingermarks deposited on metallic surfaces, and the optical, physical, chemical, and physicochemical visualization techniques that can be used ...

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“…To improve the interaction between organic small molecules and LFPs, the modified organic small molecules with different functional groups and various matrices including non-toxic or low-toxic nanomaterials have been developed as LFP imaging reagents. The matrix used by fluorescent organic small molecules for LFP imaging acts as a carrier, bioaffinity improver, and fluorescence developer (Barros et al, 2017 ; Brunelle et al, 2017 ; Zhang et al, 2017 ; Alsolmy et al, 2018 ; Uppal et al, 2018 ; Duan et al, 2019 ). On the other hand, aggregation-induced emission (AIE) exhibits remarkable bright fluorescence in aggregate or solid state (Mei et al, 2015 ; Zhao et al, 2017 ; Chen et al, 2018 ), and AIE-active molecules solely have been used for LFP bioimaging with high contrast and short developing time (Li et al, 2012 ; Xu et al, 2014 ; Suresh et al, 2018 ).…”

Section: Fluorescent Organic Small Molecule-based Materials For Lfp Imentioning

confidence: 99%