Collection of amino acids and DNA from fingerprints using hydrogels

Helmond, Ward van; O'Brien, Vincent; Jong, Robin de; Esch, Jan H. van; Oldenhof, Sander; Puit, Marcel de

doi:10.1039/c7an01692a

Cited by 11 publications

(12 citation statements)

References 22 publications

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“…( PAD )S=O⋅⋅⋅H−N (amino acid), ( PANP )N−H⋅⋅⋅O(amino acid)). In addition, N atoms also contribute forming strong N⋅⋅⋅H−O interactions . Furthermore, detailed observation of the friction ridge features (see enlarged areas in Figure ), showed whorl, bifurcation, and ridge ending, which satisfy to a large extend the requirements of fingerprint identification.…”

Section: Methodsmentioning

confidence: 81%

“…The longer temporal stability observedf or PAD and PANP was ascribed to their respective structural outfit bearing functional groups capable of providing hydrogen-bonding with the residual aminoa cids in the fingerprints( e.g. [14,[50][51][52][53][54] Furthermore, detailedo bservation of the friction ridge features (see enlarged areas in Figure2), showed whorl, bifurcation, and ridge ending, which satisfyt oalarge extendt he requirements of fingerprint identification.I nterestingly,o ur fingerprint development process also offered distinguished visual legibility on other surfaces, including handset phones urfaces ( Figure S15).…”

mentioning

confidence: 99%

See 1 more Smart Citation

Fluorescent‐Labeled Octasilsesquioxane Nanohybrids as Potential Materials for Latent Fingerprinting Detection

Dare

Vendrell-Criado

Jiménez

et al. 2020

Chemistry A European J

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The recent demand for fluorescent‐labeled materials (FLMs) in forensic security concepts such as latent fingerprints (LFs) that encode information for anti‐counterfeiting and encryption of confidential data makes necessary the development of building new and innovative materials. Here, novel FLMs based on polyhedral oligomeric silsesquioxanes (POSS) functionalized with fluorophores via “click” reactions have been successfully synthesized and fully characterized. A comprehensive study of their photophysical properties has displayed large Stokes's shift together with good photostability in all cases, fulfilling the fundamental requisites for any legible LF detection on various surfaces. The excellent performance of the hetero‐bifunctional FLM in the visualization of LF is emphasized by their legibility, selectivity, sensitivity and temporal photostability. In this study, development mechanisms have been proposed and the overall concept constitute a novel approach for vis‐à‐vis forensic investigations to trace an individual's identity.

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Section: Methodsmentioning

confidence: 81%

mentioning

confidence: 99%

Fluorescent‐Labeled Octasilsesquioxane Nanohybrids as Potential Materials for Latent Fingerprinting Detection

Dare

Vendrell-Criado

Jiménez

et al. 2020

Chemistry A European J

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show abstract

“…The mechanism of the lifting of fingerprints by the hydrogel is shown in Figure 4. [64] The utilization of swabs, tapes, and gel lifters led to the destruction of ridge details and in the destruction of fingerprints, whereas hydrogels give an advantage for sample collection due to their flexible nature. [65] Many latent fingerprint detection methods have become known over the past decade, but they lack qualities such as high resolution, low toxicity, and simple procedures.…”

Section: Fingerprinting Technologymentioning

confidence: 99%

Hydrogels: From Design to Applications in Forensic Investigations

Sandhu

Bhatia

2023

ChemistrySelect

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The concept of green hydrogels in forensics is a budding area where it encompasses the concept of sustainable investigation. Motivated by the need to prepare for the next generation advanced materials for implementing proactive forensic science strategy. The work conception, already successful in a few fields, aimed at implementing the sophisticated criminal's way of thinking, predicting their next move so that the crime‐fighting authorities can be one step ahead of them and take precautionary actions. The existing problems of current society need to be solved by deliberate efforts of researchers and forensic experts, as we can formulate strategy of design, production, and characterization of innovative polymeric materials for on spot detection of traces. Various innovative materials have been explored with the help of green chemistry. Fingerprinted products that are unique in their compilation are made in forensics by utilizing the concept of green chemistry. The creation of nontoxic hydrogels by utilizing green polymers that are biodegradable, biocompatible, and bio renewable is one such field that helps in forensic applications. The distinctive properties of hydrogels make them suitable for various forensic investigations. In this review article, we have focused on the unique sparked properties of these smart gels and opened a gateway in solving various unsolved mysteries.

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“…Previous research into the use of hydrogels in the recovery of particulates and forensic sampling has been conducted, including the incorporation of hydrogels in a testing kit for TNT [24] and the use of hydrogels for the collection of amino acids and DNA from fingermarks [25]. Hydrogels are comprised of a cross-linked polymeric network.…”

Section: Hydrogelsmentioning

confidence: 99%

Sampling of explosive residues: The use of a gelatine-based medium for the recovery of ammonium nitrate

et al. 2020

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Forensic scientists must be able to recover traces of any original explosive materials not consumed in the detonation, in a careful controlled manner to aid a crime reconstruction. In current sampling techniques, the collection efficiency of post-blast residue is highly variable and often dependent on the swabbing materials and solvent systems used. To address these method limitations, this study presents a gelatine-based sampling medium and assesses its capabilities for the collection of ammonium nitrate.Common surfaces were spotted with a known concentration of ammonium nitrate, the unset gel applied, allowed to set, and then peeled from the surface. The gel was dissolved, and solid phase extraction employed to isolate the target explosive compound and remove the constituents of the gel.The eluate was concentrated and subsequently analysed and quantified. Overall, the gel formulation was able to collect ammonium nitrate from all of the test surfaces, with recoveries ranging from 0.1% to 61.7%. This study presents a gelatine-based formulation that has the potential to become a valuable asset in the forensic tool kit for the collection of explosive traces. A key attribute of the gel is that it offers an alternative recovery tool to conventional swabbing and solvent extraction methods.

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Collection of amino acids and DNA from fingerprints using hydrogels

Cited by 11 publications

References 22 publications

Fluorescent‐Labeled Octasilsesquioxane Nanohybrids as Potential Materials for Latent Fingerprinting Detection

Fluorescent‐Labeled Octasilsesquioxane Nanohybrids as Potential Materials for Latent Fingerprinting Detection

Hydrogels: From Design to Applications in Forensic Investigations

Sampling of explosive residues: The use of a gelatine-based medium for the recovery of ammonium nitrate

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