Graphene quantum dots as full-color and stimulus responsive fluorescence ink for information encryption

Zhao, Jingwen; Pang, Youyou; Chen, Jie; Zhang, Zheye; Xi, Fengna; Chen, Peng

doi:10.1016/j.jcis.2020.06.077

Cited by 73 publications

(47 citation statements)

References 52 publications

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“…Zhao et al studied the FL stability and anti-photobleaching by irradiating GQD ink printed images under UV light for 180 min. 66 In comparison to this report, our CDs ink hand-written patterns were more stable because the patterns can still be seen clearly in 24 h UV illumination. It indicates the CSCDs@DC ink is satisfactorily stable and retains the FL property for a long time.…”

Section: Application In Uorescent Inkcontrasting

confidence: 50%

Dansyl-modified carbon dots with dual-emission for pH sensing, Fe³⁺ ion detection and fluorescent ink

Tian

Dai

et al. 2020

RSC Adv.

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Section: Application In Uorescent Inkcontrasting

confidence: 50%

Dansyl-modified carbon dots with dual-emission for pH sensing, Fe³⁺ ion detection and fluorescent ink

Tian

Dai

et al. 2020

RSC Adv.

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“…The obtained material was utilized as a sensitive fluorescent probe for AA detection (Safardoust-Hojaghan et al, 2019). Chen and co-workers prepared red-and green-emitting GQDs under solvothermal conditions from precursor molecules p-phenylenediamine and 1,3,6-trinitropyrene, respectively (Zhao et al, 2020). The as-prepared GQDs were then dispersed in glycerol-containing ethanol solution and are utilized as printable fluorescent ink.…”

Section: Hydrothermal and Solvothermal Synthesismentioning

confidence: 99%

Recent progress on graphene quantum dots‐based fluorescence sensors for food safety and quality assessment applications

Sharma

Ali

Devaraj

et al. 2021

Comp Rev Food Sci Food Safe

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The versatile photophysicalproperties, high surface-to-volume ratio, superior photostability, higher biocompatibility, and availability of active sites make graphene quantum dots (GQDs) an ideal candidate for applications in sensing, bioimaging, photocatalysis, energy storage, and flexible electronics. GQDsbased sensors involve luminescence sensors, electrochemical sensors, optical biosensors, electrochemical biosensors, and photoelectrochemical biosensors.Although plenty of sensing strategies have been developed using GQDs for biosensing and environmental applications, the use of GQDs-based fluorescence techniques remains unexplored or underutilized in the field of food science and technology. To the best of our knowledge, comprehensive review of the GQDsbased fluorescence sensing applications concerning food quality analysis has not yet been done. This review article focuses on the recent progress on the synthesis strategies, electronic properties, and fluorescence mechanisms of GQDs.The various GQDs-based fluorescence detection strategies involving Förster resonance energy transfer-or inner filter effect-driven fluorescence turn-on and turn-off response mechanisms toward trace-level detection of toxic metal ions, toxic adulterants, and banned chemical substances in foodstuffs are summarized. The challenges associated with the pretreatment steps of complex food matrices and prospects and challenges associated with the GQDs-based fluorescent probes are discussed. This review could serve as a precedent for further advancement in interdisciplinary research involving the development of versatile GQDs-based fluorescent probes toward food science and technology applications.

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“…Graphene quantum dots (GQDs) or 0D graphene materials, which are atomically thin and nanometer-wide planar carbon structures, are promising for a spectrum of novel applications [e.g., sensing ( Bian et al, 2017 ; Shen et al, 2017 ; Haque et al, 2018 ), imaging ( Chen et al, 2018 ; Yan et al, 2019 ), display ( Zhao et al, 2020 ), anticounterfeiting ( Li et al, 2018 ), catalysis ( Li et al, 2015 ; Tian et al, 2018 ; Yan et al, 2018 ; Yan et al, 2020 ), and energy storage and conversion ( Xi et al, 2019 )] owing to their molecular size, quantum-confinement-induced bandgap opening, fluorescence, good dispersibility, highly tunable chemicophyscial properties, high chemical and photostability, and good biocompatibility ( Wang et al, 2014 ; Lin et al, 2015 ). Studies also show that GQDs with functional groups and heteroatom dopants can exhibit nanozyme properties ( Ju et al, 2016 ).…”

Section: Introductionmentioning

confidence: 99%

Colorimetric and Fluorescent Dual-Modality Sensing Platform Based on Fluorescent Nanozyme

et al. 2021

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Compared with natural enzymes, nanozymes based on carbonaceous nanomaterials are advantages due to high stability, good biocompatibility, and the possibility of multifunctionalities through materials engineering at an atomic level. Herein, we present a sensing platform using a nitrogen-doped graphene quantum dot (NGQD) as a highly efficient fluorescent peroxidase mimic, which enables a colorimetric/fluorescent dual-modality platform for detection of hydrogen peroxide (H2O2) and biomolecules (ascorbic acid-AA, acid phosphatase-ACP) with high sensitivity. NGQD is synthesized using a simple hydrothermal process, which has advantages of high production yield and potential for large-scale preparation. NGQD with uniform size (3.0 ± 0.6 nm) and a single-layer graphene structure exhibits bright and stable fluorescence. N-doping and ultrasmall size endow NGQD with high peroxidase-mimicking activity with an obviously reduced Michaelis–Menten constant (Km) in comparison with natural horseradish peroxidase. Taking advantages of both high nanozyme activity and unique fluorescence property of NGQD, a colorimetric and fluorescent dual-modality platform capable of detecting H2O2 and biomolecules (AA, ACP) with high sensitivity is developed as the proof-of-concept demonstration. Furthermore, the mechanisms underlying the nanozyme activity and biosensing are investigated.

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Graphene quantum dots as full-color and stimulus responsive fluorescence ink for information encryption

Cited by 73 publications

References 52 publications

Dansyl-modified carbon dots with dual-emission for pH sensing, Fe³⁺ ion detection and fluorescent ink

Dansyl-modified carbon dots with dual-emission for pH sensing, Fe³⁺ ion detection and fluorescent ink

Recent progress on graphene quantum dots‐based fluorescence sensors for food safety and quality assessment applications

Colorimetric and Fluorescent Dual-Modality Sensing Platform Based on Fluorescent Nanozyme

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Graphene quantum dots as full-color and stimulus responsive fluorescence ink for information encryption

Cited by 73 publications

References 52 publications

Dansyl-modified carbon dots with dual-emission for pH sensing, Fe3+ ion detection and fluorescent ink

Dansyl-modified carbon dots with dual-emission for pH sensing, Fe3+ ion detection and fluorescent ink

Recent progress on graphene quantum dots‐based fluorescence sensors for food safety and quality assessment applications

Colorimetric and Fluorescent Dual-Modality Sensing Platform Based on Fluorescent Nanozyme

Contact Info

Product

Resources

About

Dansyl-modified carbon dots with dual-emission for pH sensing, Fe³⁺ ion detection and fluorescent ink

Dansyl-modified carbon dots with dual-emission for pH sensing, Fe³⁺ ion detection and fluorescent ink