Latent Fingermarks Enhancement in Deep Eutectic Solvent by Co-electrodepositing Silver and Copper Particles on Metallic Substrates

Zhang, Yang; Zhang, Meiqin; Wei, Qianhui; Gao, Yongjie; Guo, Lijuan; Zhang, Xueji

doi:10.1016/j.electacta.2016.05.200

Cited by 20 publications

(10 citation statements)

References 32 publications

(48 reference statements)

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“… Preliminary/Pilot studies : Various approaches were proposed to detect fingermarks on cartridge cases or other metallic surfaces: molecular complexes composed of l -alanine and conventional amino acid reagents (i.e., DFO, IND, MTN, and NIN) applied to brass and fired cartridges [ 429 ]; co-electrodeposition of silver and copper particles in deep eutectic solvent (mix of choline chloride and ethylene glycol), the secretion residue acting as a mask [ 430 ]; gel-based electrolytes (calcium chloride and potassium permanganate) applied to stainless steel and aluminium [ 431 ]; deposition of potassium birnessite (oxide mineral of manganese) on unfired cartridges and flat metal surfaces, the secretion residue acting as a mask [ 432 ]; electrostatic adsorption using a modified portable high-low voltage self-discharge device, applied to unfired brass cartridges [ 433 ]; nanoconjugate composed of carbon nanotubes, Candida rugosa lipase and safranin, applied in suspension on immersed stainless steel knives [ 410 ]; SKP and SEM/EPMA imaging of latent and VMD-processed fingermarks on metallic surfaces [ 434 ]; ToF-SIMS applied to flat metallic surfaces [ 435 ]; modified VMD process involving the deposition of gold followed by zinc, ZnS, or ZnO on aluminium [ 436 ]; and in situ reduction of aryldiazonium gold (III) salts induced by human sweat, applied to flat metallic surfaces [ 437 ]. Metal corrosion : Cooper-Dunn et al.…”

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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“…Electrodeposition of metal nanoparticles on different metal surfaces (left: zinc, right: copper) . [Color figure can be viewed at wileyonlinelibrary.com]…”

Section: Physicochemical Methodsmentioning

confidence: 99%

“…Zhang et al used a similar method with the difference being the use of silver and copper particles. They achieved development of grades 3–4 for their fingermarks in an array of metallic surfaces (Fig.…”

Section: Physicochemical 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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“…指纹, 即人们指头上摩擦嵴皮肤表面的花纹, 具有因人而异的唯一性、终身不变的稳定性、排列有序的规律性和触物留痕的反映性 [1,2] . 指头接触物体后留下的印痕--手印, 是最可靠的人身识别依据之一, 在法 [18] (网络版彩图) [22] (网络版彩图) 2012年, Xu等 [33,34] 将电化学发光技术用于显现潜在手印, 为电化学发光和手印显现技术的发展注入了新的活力.…”

Section: 引言unclassified