Nanoplasmonic Imaging of Latent Fingerprints with Explosive RDX Residues

Peng, Tianhuan; Qin, Weiwei; Wang, Kun; Shi, Jiye; Fan, Chunhai; Li, Di

doi:10.1021/acs.analchem.5b02248

Cited by 52 publications

(28 citation statements)

References 47 publications

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“…On the basis of these unique properties, they have been applied in a wide spectrum of fields, including catalysis (Thompson, 2007; Luo et al, 2010; Diao and Cao, 2011; Zheng et al, 2011; Li et al, 2015), plasmonic imaging (Li et al, 2013; Peng et al, 2015), biochemical sensors (Orza et al, 2010; Zheng et al, 2011; Qin et al, 2015; Xu Y. et al, 2015), tumor cell detection (Lu et al, 2010), targeted therapy (Kumar et al, 2012), and so on. The unique characteristics of nanomaterials mainly benefit from their high surface to volume ratio compared with their respective bulk counterparts.…”

Section: Applications Of Nanomaterials For Csc Targetingmentioning

confidence: 99%

Nanomaterials in Targeting Cancer Stem Cells for Cancer Therapy

et al. 2017

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Cancer stem cells (CSCs) have been identified in almost all cancers and give rise to metastases and can also act as a reservoir of cancer cells that may cause a relapse after surgery, radiation, or chemotherapy. Thus they are obvious targets in therapeutic approaches and also a great challenge in cancer treatment. The threat presented by CSCs lies in their unlimited proliferative ability and multidrug resistance. These findings have necessitated an effective novel strategy to target CSCs for cancer treatment. Nanomaterials are on the route to providing novel methods in cancer therapies. Although, there have been a large number of excellent work in the field of targeted cancer therapy, it remains an open question how nanomaterials can meet future demands for targeting and eradicating of CSCs. In this review, we summarized recent and highlighted future prospects for targeting CSCs for cancer therapies by using a variety of nanomaterials.

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Section: Applications Of Nanomaterials For Csc Targetingmentioning

confidence: 99%

Nanomaterials in Targeting Cancer Stem Cells for Cancer Therapy

et al. 2017

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“…The researchers then expanded the idea of nanoplasmonic imaging to identify 1,3,5-trinitro-1,3,5-triazinane (RDX) explosive residues in LFMs by exploring the competitive reduction of Cu 2+ and RDX by a reduced form of nicotinamide-adenine dinucleotide (NADH). 93 In addition, some other nanoparticles can also be functionalized with aptamers, such as upconversion nanoparticles (UCNPs). UCNPs are able to convert two or more near-infrared pump photons into a higher energy output photon through sequential electronic excitation and energy-transfer processes.…”

Section: Aptamer-based Methodsmentioning

confidence: 99%

Recent advances in the chemical imaging of human fingermarks (a review)

Wei

Zhang

Ogorevc

et al. 2016

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This review highlights the considerable advances in the chemical imaging of human fingermarks that provide more chemical information, including numerous endogenous and exogenous constituents. Despite remarkable development in DNA analysis and recognition, human fingermark analysis remains one of the priority approaches available for obtaining reliable forensic evidence. Additional information about the donor can be obtained from the chemical composition of latent fingermarks in addition to the ridge pattern, such as the age, gender, medical history, and possible drug habits. The analytical approaches reviewed here include spectroscopy, mass spectrometry, immuno-labelling and electrochemical methods. Each method has different capabilities with respect to sensitivity, reproducibility, selectivity, reliability and ultimately applicability, either for use in routine forensic practice or in academic research work. The advantages of spectroscopic techniques, including infrared, Raman and micro-X-ray fluorescence spectroscopy, are the capabilities of a rapid and non-destructive imaging of fingermarks by providing spectral information on chemical composition. In addition, mass spectrometry imaging can provide spatially specific information on fingermark chemical composition. Recently, the use of immuno-labelling in latent fingermark detection has attracted significant attention because it can overcome the sensitivity and selectivity problems experienced with other existing methods. The electrochemical method has also been employed to image latent fingermarks by measuring the electric current changes with the spatial chemical composition from the ridges and valleys at high resolution to provide a third level of detail, which is especially useful for multicoloured background surfaces or for surfaces contaminated with blood or other bodily fluids.

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“…[1][2][3][4][5][6][7][8][9][10] Among them, gold nanomaterials, for instance, colloidal gold, gold nanocomposites, gold nanopowders and gold nanoclusters (Au NCs), have been employed to enhance ngerprints from the late 80 s of the last century. [11][12][13][14][15][16][17][18][19][20] Originally reported in 1989, Saunders et al rst tested and veried the possibility of employing gold nanomaterials for latent ngermarks development, and multi-metal deposition (MMD) has been proposed at the same time. 11 Two metals, silver and gold were employed to enhance latent ngermarks.…”

Section: Introductionmentioning

confidence: 99%

“…16 Since then, researchers focus on developing new reagents and novel approaches for enhancement of latent ngerprints while analysis of ngerprints residues, such as explosive and drugs. 3,17,18 Moreover, by in situ growth of gold nanoparticles on ridge patterns, Hussain's group developed a single step approach to make latent ngerprints visible and visualizing latent ngerprints by electrodeposition of gold nanoparticles were also reported. 19,20 However, most of these developing studies were carried out in a narrow pH range or by using aqueous solution of gold nanomaterials as developing reagents, which might bring some irreversible damages to the objects with porous surfaces.…”

Section: Introductionmentioning

confidence: 99%

Non-toxic luminescent Au Nanoclusters@Montmorillonite nanocomposites powders for latent fingerprint development

Yan

Xia

2017

RSC Adv.

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Non-toxic Au nanoclusters@montmorillonite (AuNCs@MMT) nanocomposites with strong red fluorescence are prepared by a microwave (MW)-assisted synthesis method and immobilize Au NCs into sodium MMT clay matrix via electrostatic interaction. Due to the immobilization of Au NCs in the layered structure of the MMT clay matrix, the formative AuNCs@MMT nanocomposites show high emission, stable chemical features and less toxicity. The obtained Au NCs and AuNCs@MMT nanopowders were characterized by using UV-visible absorption spectroscopy, fluorescence spectroscopy, infrared spectroscopy, TEM/HRTEM, SEM and XRD etc. to depict their sizes, microstructures and optical features.Due to their environmentally friendly preparation, time-saving procedure, user-friendly operation, low cost, efficient UV-visible radiation-dependent photoluminescence and good affinity with finger residues, the as-synthesized AuNCs@MMT nanopowders are employed as a alternative florescent developing reagent for enhancing latent fingerprints deposited on various object surfaces (such as glass, porcelain enamel, stainless steel, painted metal, plastic products, weighing papers etc.) for individual identification. As results, the enhanced fingerprints with clear patterns and satisfactory ridge details were obtained by using as-prepared AuNCs@MMT nanopowders. At the same time, intensively red fluorescence as well as good contrast without background staining of developed prints demonstrated great advantages for surfaces with multicolour. Because of their good sensitivity, non-toxicity and strong resistance to background interference, the as-prepared fluorescent nanocomposites are an actual alternative to conventional powdering reagents, which may find potential application in forensic detection.

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Nanoplasmonic Imaging of Latent Fingerprints with Explosive RDX Residues

Cited by 52 publications

References 47 publications

Nanomaterials in Targeting Cancer Stem Cells for Cancer Therapy

Nanomaterials in Targeting Cancer Stem Cells for Cancer Therapy

Recent advances in the chemical imaging of human fingermarks (a review)

Non-toxic luminescent Au Nanoclusters@Montmorillonite nanocomposites powders for latent fingerprint development

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