Mechanisms behind multicolor tunable Near-Infrared triple emission in graphene quantum dots and ratio fluorescent probe for water detection

Tang, Siyuan; Chen, Da; Yang, Yongsheng; Wang, Changxing; Li, Xiameng; Wang, Yiru; Gu, Chenjie; Cao, Zhen

doi:10.1016/j.jcis.2022.02.116

Cited by 58 publications

(31 citation statements)

References 69 publications

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“…Transmission electron microscopy (TEM) image shows that the laccaic acid-derived CDs nanozyme are monodisperse spheroids with an average diameter of 5.51 nm ( Figure 1A and Supplementary Figure S1 ). The average lattice spacing of 0.23 nm, which is corresponding to the (100) facet of graphite ( Tang et al, 2022 ), can be measured in the HR-TEM image of CDs nanozyme. The chemical composition of the CDs nanozyme was determined by Fourier transform infrared (FT-IR) spectroscopy and X-ray photoelectron spectroscopy (XPS).…”

Section: Resultsmentioning

confidence: 99%

Carbon dots nanozyme for anti-inflammatory therapy via scavenging intracellular reactive oxygen species

Dong

Huang

et al. 2022

Front. Bioeng. Biotechnol.

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Developing an efficient antioxidant for anti-inflammatory therapy via scavenging reactive oxygen species (ROS) remains a great challenge owing to the insufficient activity and stability of traditional antioxidants. Herein, we explored and simply synthesized a biocompatible carbon dots (CDs) nanozyme with excellent scavenging activity of ROS for anti-inflammatory therapy. As expected, CDs nanozyme effectively eliminate many kinds of free radicals including •OH, O2•−, and ABTS+•. Benefiting from multienzyme activities against ROS, CDs nanozyme can decrease the levels of pro-inflammatory cytokines, resulting in good anti-inflammatory effect. Taken together, this study not only sheds light on design of bioactive antioxidants but also broadens the biomedical application of CDs in the treatment of inflammation.

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Section: Resultsmentioning

confidence: 99%

Carbon dots nanozyme for anti-inflammatory therapy via scavenging intracellular reactive oxygen species

Dong

Huang

et al. 2022

Front. Bioeng. Biotechnol.

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“…In the exploration of the mechanism of the CDs’ luminescence, the type of nitrogen is often considered the main factor in photoluminescence-tunable CDs. 31 However, the N content decreased from 7.26% to 1.58% from G-CDs to R-CDs, indicating that the red-shift of the CDs’ fluorescence was not caused by N-containing functional groups. Fig.…”

Section: Resultsmentioning

confidence: 91%

Polar engineering regulates photoluminescence-tunable carbon dots for microalgal lipid imaging

Huang

Pan

et al. 2022

Mater. Adv.

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“…42 The high-resolution N 1s spectrum was resolved into two peaks at 399.3 and 400.9 eV, ascribed to pyrrolic nitrogen and graphitic nitrogen, respectively. 43 The high-resolution O 1s spectrum was deconvoluted into two peaks located at 531.9 and 533.0 eV, which were attributed to C�O and C−O−C/C−O−H groups, respectively.…”

Section: Characterization Of Rcdsmentioning

confidence: 99%

“…The RCDs are unable to directly attach and aggregate even in the solid state. 43 Consequently, we obtained solid-state fluorescent pigments (Figure S5). In smart textiles, the RCD−PVP powder was utilized as a nontoxic and ecofriendly pigment.…”

Section: Rcds As Fluorescent Pigments For Light-stimuli-responsive Sm...mentioning

confidence: 99%

Versatile Red-Emissive Carbon Dots for Smart Textiles and Fluorescence Sensing

Jia

Zhang

2023

ACS Appl. Nano Mater.

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Red-emissive carbon dots (RCDs) were facilely synthesized from o-phenylenediamine and catechol in ethanol through a hydrothermal method. The produced RCDs showed a triplet fluorescence emission around 597, 647, and 707 nm, respectively. The eco-friendly fluorescent pigment was prepared by dispersing RCDs into poly(vinylpyrrolidone) for smart textiles. Bright and stable fluorescent patterns on the cotton fabrics were successfully created by a screen-printing technique. Based on the pH-sensitive color change of RCDs, reversible volatile acid/amine-responsive RCD-patterned smart textiles and paper indicators were also constructed, respectively. Furthermore, fluorescence-sensing platforms were developed for MnO4 – using an inner-filter-effect approach. It was found that the present RCDs could be used for the quantitative detection of MnO4 – in the range of 0–7 μM in aqueous solution and for practical water sample analysis with satisfactory recovery results.

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Mechanisms behind multicolor tunable Near-Infrared triple emission in graphene quantum dots and ratio fluorescent probe for water detection

Cited by 58 publications

References 69 publications

Carbon dots nanozyme for anti-inflammatory therapy via scavenging intracellular reactive oxygen species

Carbon dots nanozyme for anti-inflammatory therapy via scavenging intracellular reactive oxygen species

Polar engineering regulates photoluminescence-tunable carbon dots for microalgal lipid imaging

Versatile Red-Emissive Carbon Dots for Smart Textiles and Fluorescence Sensing

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