Water‐Triggered Luminescent “Nano‐bombs” Based on Supra‐(Carbon Nanodots)

Lou, Qing; Qu, Songnan; Jing, Pengtao; Ji, Wenyu; Li, Di; Cao, Jianbo; Zhang, Hong; Liu, Lei; Zhao, Jianlong; Shen, Dezhen

doi:10.1002/adma.201403635

Cited by 177 publications

(139 citation statements)

References 41 publications

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“…[ 21,22 ] Very recently, Sheng et al described a novel approach for fabricating water-jet rewritable paper that can be integrated into fully developed inkjet printing techniques. [ 19 ] In this system, oxazolidinebased hydrochromic dyes, which are initially colorless when coated on a substrate, undergo ring opening reactions in the presence of water that are accompanied by formation of a blue color.…”

mentioning

confidence: 99%

Inkjet‐Printable Amphiphilic Polydiacetylene Precursor for Hydrochromic Imaging on Paper

Park

Jeong

Seo

et al. 2015

Adv Funct Materials

122

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Hydrochromic materials find great utility in a wide range of applications including humidity sensing and measuring the water contents of organic solvents, as well as substrates for rewritable paper and human sweat pore mapping. Herein, an inkjet printable diacetylene (DA) is described that can be transformed by UV irradiation to a hydrochromic‐conjugated polymer on conventional paper. Specifically, an amphiphilic DA that contains an imidazolium ion head‐group is found to be compatible with a common office inkjet printer. Various computer‐designed images are printed on paper using this substance. UV irradiation of the printed images results in the generation of blue‐colored images associated with formation of a polydiacetylene (PDA). The resolutions of the images are almost identical to those generated using a conventional black ink. Importantly, the printed images undergo a blue‐to‐red color change upon exposure to water and the hydrochromism is found to be temperature dependent. The facile color change that occurs near body temperatures enables use of the hydrochromic PDA‐coated paper for rapid and precise mapping of human sweat pores from fingers, palms, and feet.

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mentioning

confidence: 99%

Inkjet‐Printable Amphiphilic Polydiacetylene Precursor for Hydrochromic Imaging on Paper

Park

Jeong

Seo

et al. 2015

Adv Funct Materials

122

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“…For these reasons, rewritable ink and rewritable paper, which can allow a single piece of paper to be reused multiple times, are now attracting much attention from the perspective of sustainable development. To date, numerous examples have been reported in this field that make use of both organic and inorganic materials . Among these works, interconversion between colorless and one or two different colors on a sheet of paper have been demonstrated by employing various external stimuli, such as electricity, heat, light, water, and metal ions .…”

Section: Introductionmentioning

confidence: 99%

A Multiaddressable Dyad with Switchable Cyan/Magenta/Yellow Colors for Full‐Color Rewritable Paper

Qin

Han

Geng

et al. 2018

Chemistry A European J

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Reversible multicolor displays on solid media created from single-molecule pigments are a long-awaited goal. Herein, a new and simple molecular dyad, which can undergo switchable cyan (C), magenta (M), and yellow (Y) color changes in both solution and the solid state upon exposure to light, water/acid, and nucleophiles, has been designed and synthesized. The stimuli used herein can be applied independent of each other, which is beneficial for color changes without mutual interference. For comparison, mixtures of the two molecular switching motifs that form the basis of the dyad were also studied. The dyad greatly outperforms the corresponding mixed system with respect to reversible color switching on the paper substrate. Its potential for full-color rewritable paper with excellent reversibility has been demonstrated. Legible multicolor prints, that is, high color contrast and resolution, good dispersion, and excellent reversibility, were achieved by using common water-jet and light-based printers. This work provides a very promising approach for the further development of full-color switchable molecules, materials, and displays.

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“…1D) in the O1s XPS spectrum of the CNDs. [30][31][32] The XPS attributions were further veried by the FTIR spectrum. The FTIR spectrum was obtained to determine the surface status information of the CNDs (Fig.…”

Section: Characteristics Of Cndsmentioning

confidence: 99%

Orange emissive carbon dots for colorimetric and fluorescent sensing of 2,4,6-trinitrophenol by fluorescence conversion

Ren

Zhu

et al. 2018

RSC Adv.

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In this study, infrequent orange carbon nanodots (CNDs) were applied as a dual-readout probe for the effective colorimetric and fluorescent detection of 2,4,6-trinitrophenol (TNP). The orange fluorescence could be rapidly and selectively quenched by TNP, and the colorimetric response from the original pink color to blue could also be captured immediately by the naked eye. A limit of detection of 0.127 mM for TNP was estimated by the fluorescent method and 5 Â 10 À5 M by visualized detection. Interestingly, the fluorescence of the CNDs with TNP gradually transitioned from orange to green upon irradiation by a UV lamp, and the colorimetric response transitioned from pink to blue to colorless, which ensured effective multi-response detection of TNP. In addition, the CNDs exhibited bright fluorescence, excellent biocompatibility and low toxicity, making them high-quality fluorescent probes for cellular imaging.

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Water‐Triggered Luminescent “Nano‐bombs” Based on Supra‐(Carbon Nanodots)

Cited by 177 publications

References 41 publications

Inkjet‐Printable Amphiphilic Polydiacetylene Precursor for Hydrochromic Imaging on Paper

Inkjet‐Printable Amphiphilic Polydiacetylene Precursor for Hydrochromic Imaging on Paper

A Multiaddressable Dyad with Switchable Cyan/Magenta/Yellow Colors for Full‐Color Rewritable Paper

Orange emissive carbon dots for colorimetric and fluorescent sensing of 2,4,6-trinitrophenol by fluorescence conversion

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