One step synthesis of hydrophobic carbon dots powder with solid state emission and application in rapid visualization of latent fingerprints

Bandi, Rajkumar; Harsha, Kannikanti Gavash; Dadigala, Ramakrishna; Gangapuram, Bhagavanth Reddy; Vaidya, Jayathirtha Rao; Veerabhadram, Guttena

doi:10.1016/j.optmat.2020.110349

Cited by 29 publications

(8 citation statements)

References 35 publications

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“…This phenomenon has been previously reported in the literature. 35,36 Another challenge in crime scene investigations is to recognize the aged LFPs that have been le on a glass substrate for a long time, since the volatile components of LFPs could be lost due to long-term exposure, making some detection methods invalid. 37 In this case, we collect the LFPs deposited on a glass slide in air for 1, 5, 9 and 15 days prior to exposure.…”

Section: Papermentioning

confidence: 99%

Nanocomposites of nitrogen-doped carbon dots/hydrotalcite with enhanced solid-state fluorescence for the recognition of latent fingerprints

Zhang

et al. 2023

Anal. Methods

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Section: Papermentioning

confidence: 99%

Nanocomposites of nitrogen-doped carbon dots/hydrotalcite with enhanced solid-state fluorescence for the recognition of latent fingerprints

Zhang

et al. 2023

Anal. Methods

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“…However, the authors tested the material only for glass slides, and verified that it worked well for sebum rich fingermarks, but not for eccrine ones. In a similar approach, Bandi et al (2020) used a one‐step thermal carbonization method for the synthesis of solid‐state emitting N‐doped CD (NCD) powder with lipophilic nature that was applied for latent fingermarks enhancement on various porous and nonporous surfaces. C. Wang, Zhou, et al (2018) reported the preparation of color‐tunable emission nitrogen‐ and sulfur‐doped CDs and extended their studies to six different surfaces (glass, plastic, steel, aluminum, ceramic and paper): the development of latent marks on aluminum foil substrates showed level 2 and level 3 features.…”

Section: Nanomaterials To Macromoleculesmentioning

confidence: 99%

From nanomaterials to macromolecules: Innovative technologies for latent fingerprint development

Assis

Costa

Alves

et al. 2022

WIREs Forensic Science

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The majority of conventional techniques for latent fingerprint enhancement are based on chemical reactions or interactions between the developer and fingermark residue components, providing contrast between the surface and the fingerprint ridges. However, these methods might be limited by factors associated with particle size, toxicity of the reagent, selectivity, or sensitivity, that may be circumvented by the synthetic design of innovative materials based on nanoparticles or macromolecular materials, such as conducting polymers, applied as latent fingerprint developers on different surfaces and conditions. Since the structural, optical and electronic properties of the material can be tailored by its molecular scale, the size control of the developer plays an important role to improve the interaction with the latent fingermark residue and/or the surface, enhancing the color contrast and the quality of the developed image (or dactylogram). Hence, creating new reagents and strategies to apply nano-and macromolecular scale materials as latent fingermark developers constitutes an exciting rapidly expanding area, generating a wealth of new materials that lead to forensic methodologies with enhanced performance.Recent progress in the application of such materials for development of latent fingermarks present on different surfaces and subject to complex circumstances will be discussed. This will focus on the main barriers to making nanoparticles and conducting polymers viable-and occasionally preferredmaterials routinely used by forensic experts, and the potential advantages over conventional methodologies in the acquisition and analysis of crime scene evidence.

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“…Recently, Guttena et al established new hydrophobic N-CDs via one-step carbonization protocol using o-phenylenediamine and 2,6-pyridinedicarboxylic acid precursors. [47] The utility of N-CDs powder for rapid detection of latent FPs were performed by powder dusting technique. To improve the efficiency of dusting process they grounded the N-CDs powder before dusting.…”

Section: Hetero Atom Doped Cdsmentioning

confidence: 99%

Applications of Carbon Dots (CDs) in Latent Fingerprints Imaging

Shabashini

Panja

Nandi

2021

Chemistry An Asian Journal

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Carbon dots (CDs), a new member of the carbonbased material family, possess unique properties, such as high fluorescence, non-toxicity, eco-friendliness, stability and cost-effectiveness. These properties helped CDs to receive tremendous attention in various fields, namely, biological, opto-electronic, bio-imaging and energy-related applications.Although CDs are widely explored in bio-imaging and biosensing applications, their effectiveness in forensic science and technology is comparatively new. In this review, applications of CDs pertaining to latent FPs recovery since 2015 to 2020 is summarized comprehensively.

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One step synthesis of hydrophobic carbon dots powder with solid state emission and application in rapid visualization of latent fingerprints

Cited by 29 publications

References 35 publications

Nanocomposites of nitrogen-doped carbon dots/hydrotalcite with enhanced solid-state fluorescence for the recognition of latent fingerprints

Nanocomposites of nitrogen-doped carbon dots/hydrotalcite with enhanced solid-state fluorescence for the recognition of latent fingerprints

From nanomaterials to macromolecules: Innovative technologies for latent fingerprint development

Applications of Carbon Dots (CDs) in Latent Fingerprints Imaging

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