Visualization of Sweat Fingerprints on Various Surfaces Using a Conjugated Polyelectrolyte

Yoon, Jaewon; Jin, Young-Jae; Sakaguchi, Toshikazu; Kwak, Giseop

doi:10.1021/acsami.6b05573

Cited by 23 publications

(8 citation statements)

References 48 publications

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“…29,97 NCs and photonic crystals can undergo color conversion through expansion and contraction of the matrix. 98 To date, they have been successfully used for water-soluble color humidity sensors, [99][100][101][102][103][104][105][106][107][108] sweat hole mapping systems, [109][110][111][112][113] water detection in organic solvents, [114][115][116][117] and rewritable paper. 44,46,54,97,98,111,[118][119][120][121] Particularly, hydrochromic materials are very popular in the design of water-jet printing rewritable papers.…”

Section: Hydrochromic Materials For Green Printingmentioning

confidence: 99%

Stimuli‐responsive photofunctional materials for green and security printing

et al. 2020

InfoMat

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Information recording on paper has always been the most important approach to keep records of human activity and to spread civilization. With the progress of science and technology, paper with different functions should be exploited to conform to the increasing demands in various scenarios. In one aspect, traditional paper can only be used once, and using large amounts of paper causes deforestation, additional solid waste treatment, environmental pollution, and high energy consumption. Consequently, the development of rewritable paper that is environment-friendly, low cost, and can save resources is significant for green printing. In the other aspect, information leakage brings security issues, which may lead to severe consequences, such as war outbreak, economic loss, social problems, and so on. Therefore, the development of security printing has also attracted wide interests. Stimuli-responsive photofunctional materials that have reversible variations in absorption or emission in response to changes in the external environmental have a great potential for the achievement of green and security printing. To date, much progress has been made in these research areas. This paper lists different smart materials that respond to various external stimuli, such as light, water, pH, heat, and metal ions, and summarizes the recent advances towards green and security printing. Also, we discuss the current challenges and future directions in this rapidly growing research field. It is expected that this review article will stimulate and guide future studies for the advanced green and security printing.

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Section: Hydrochromic Materials For Green Printingmentioning

confidence: 99%

Stimuli‐responsive photofunctional materials for green and security printing

et al. 2020

InfoMat

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“…8 Among them, fluorescence staining is a general approach for LFPs detection with high sensitivity. 5 Typical fluorescent materials, such as organic dyes, 9 conjugated polymers, 10 quantum dots, 11 and rare earth complexes, 12 have been reported for this application.…”

mentioning

confidence: 99%

Red-Emissive Carbon Dots for Fingerprints Detection by Spray Method: Coffee Ring Effect and Unquenched Fluorescence in Drying Process

Chen

Wei

Zhang

et al. 2017

ACS Appl. Mater. Interfaces

300

152

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Brightly red fluorescent carbon dots are synthesized hydrothermally and dissolved in diluted hydrochloric acid solution. Such carbon dots exhibit excitation-independent emission at about 620 nm with quantum yield over 10%, which is visible in daylight. After the carbon dots solution is sprayed to the fingerprints on various solid substrates and dried in air, clear fingerprints can be seen under an ultraviolet lamp and stay stable for 1 day. Detailed characterizations suggest that during the drying process, the coffee-ring effect and the electrostatic interactions between the carbon dots and the fingerprint residues prevent the typical aggregation-induced fluorescence quenching of carbon dots.

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“…Biological samples taken from crime scenes as evidence, such as fingerprints, elucidate more facts about the possible suspects and crime itself in the forensic investigations [27]. Latent fingerprints detection was developed rapidly include powdering [27,28], fluorescent imaging [29], visualization using polyelectrolytes [30], and cyanoacrylate fuming [31], scanning Kelvin probe [32], metal vapor deposition [33], and redox approaches for metal surfaces [34].…”

Section: Forensic Nanotechnologymentioning

confidence: 99%

Diazonium Gold Salts as Novel Surface Modifiers: What Have We Learned So Far?

2020

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The challenges of diazonium salts stabilization have been overcome by their isolation as metal salts such as tetrachloroaurate(III). The cleavage of molecular nitrogen from diazonium salts even at very low potential or on reducing surfaces by fine tuning the substituents on the phenyl ring expanded their applications as surface modifiers in forensic science, nanomedicine engineering, catalysis and energy. The robustness of the metal–carbon bonding produced from diazonium salts reduction has already opened an era for further applications. The integration of experimental and calculations in this field catalyzed its speedy progress. This review provides a narrative of the progress in this chemistry with stress on our recent contribution, identifies potential applications, and highlights the needs in this emerging field. For these reasons, we hope that this review paper serves as motivation for others to enter this developing field of surface modification originating from diazonium salts.

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Visualization of Sweat Fingerprints on Various Surfaces Using a Conjugated Polyelectrolyte

Cited by 23 publications

References 48 publications

Stimuli‐responsive photofunctional materials for green and security printing

Stimuli‐responsive photofunctional materials for green and security printing

Red-Emissive Carbon Dots for Fingerprints Detection by Spray Method: Coffee Ring Effect and Unquenched Fluorescence in Drying Process

Diazonium Gold Salts as Novel Surface Modifiers: What Have We Learned So Far?

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