Waste-to-wealth: Functional biomass carbon dots based on bee pollen waste and application

Shan, Feishi; Fu, Lijuan; Chen, Xiangyu; Xiang-yan, Xie; Liao, Chengshuang; Zhu, Yinxia; Xia, Haoyu; Zhang, Jing; Li, Yan; Wang, Zhouyu; Yu, Xiao‐Qi

doi:10.1016/j.cclet.2021.12.094

Cited by 39 publications

(32 citation statements)

References 25 publications

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“…The effect of Cu 2+ quenching might be due to non-radiative electron transfer from the excited state of the Cu 2+ electric orbital at the carbon site [ 36 ]. Consequently, all mussels-derived CDs have potential application as fluorescence sensors to quantitatively detect Fe 3+ , Cu 2+ [ 37 ], and other components which could change their fluorescence.…”

Section: Resultsmentioning

confidence: 99%

Characteristics of Mussels-Derived Carbon Dots and Their Applications in Bio-Imaging and Detection of Riboflavin

Zhao

Zhang

Cao

et al. 2022

Foods

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A simple and green strategy has been demonstrated for the synthesis of carbon dots (CDs) from mussels. The chemical structure and optical properties of mussels-derived CDs prepared at different reaction temperatures (140, 160, and 180 °C) were evaluated. The average size of synthesized fluorescent CDs decreased from 2.06 to 1.30 nm as reaction temperatures increased from 140 to 180 °C. The fluorescence quantum yield of CDs could reach up to 15.20%. The surface of CDs was rich in functional groups such as -OH, -NH2, and -COOH, providing CDs with good water solubility and biocompatibility. Furthermore, the mussel-derived CDs have been successfully applied in bio-imaging for onion endothelium cells, HepG2 cells, and zebrafish. In addition, CDs could be employed as a biosensor for riboflavin detection. Therefore, mussels are a promising carbon resource for preparing N-doped CDs for bio-imaging and monitoring riboflavin.

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Section: Resultsmentioning

confidence: 99%

Characteristics of Mussels-Derived Carbon Dots and Their Applications in Bio-Imaging and Detection of Riboflavin

Zhao

Zhang

Cao

et al. 2022

Foods

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“…The UV-Vis absorption spectrum in Fig. 2(b) displayed two dominant absorption peaks at 212 and 348 nm in absorption region from 200 to 600 nm, which could be appointed to the π-π * transitions of C=C bonds from the aromatic sp 2 -hybridized carbons inside the carbon core and the n-π * transitions of the C=O and C=N functional groups, respectively [60][61][62][63]. Once excited, the CDs exhibited bright blue fluorescence in both solution and solid state.…”

Section: Optical Propertiesmentioning

confidence: 99%

Multifunctional N,S-doped and methionine functionalized carbon dots for on-off-on Fe3+ and ascorbic acid sensing, cell imaging, and fluorescent ink applying

Yang

Xu²,

Zhang³

et al. 2022

Nano Res.

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Fluorescent carbon dots (CDs) have been identified as potential nanosensors and attracted tremendous research interests in wide areas including anti-counterfeiting, environmental and biological sensing and imaging in considering of the attractive optical properties. In this work, we present a CDs based fluorescent sensor from polyvinylpyrrolidone, citric acid, and methionine as precursors by hydrothermal approach. The selective quantifying of Fe 3+ and ascorbic acid (AA) are based on the fluorescent on-off-on process, in which the fluorescent quenching is induced by the coordination of the Fe 3+ on the surface of the CDs, while the fluorescence recovery is mainly attributed to redox reaction between Fe 3+ and AA, breaking the coordination and bringing the fluorescence back. Inspired by the good water solubility and biocompatibility, significant photostability, superior photobleaching resistance as well as high selectivity, sensitivity, and interference immunity, which are constructed mainly from the N,S-doping and methionine surface functionalization, the CDs have not only been employed as fluorescence ink in multiple anticounterfeiting printing and confidential document writing or transmitting, but also been developed as promising fluorescence sensors in solution and solid by CDs doped test strips and hydrogels for effectively monitoring and removing of Fe 3+ and AA in environmental aqueous solution. The CDs have been also implemented as effective diagnostic candidates for imaging and tracking of Fe 3+ and AA in living cells, accelerating the understanding of their function and importance in related biological processes for the prevention and treatment specific diseases.

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“…In recent years, various raw materials have been used to prepare CDs, such as non-biomass materials, including citric acid, − pyromellitic acid, 1,2,4,5-benzenetetramine tetrahydrochloride, triethanolamine, dopamine, etc. Biomass materials, such as turtle shells, polymeric waste, bee pollen, and gallic acid, etc, are also utilized and have occupied an important position because of their high carbon content, renewability, affordability, and green resources. At present, the preparation methods of CDs are mainly divided into bottom–up and top–down methods.…”

Section: Introductionmentioning

confidence: 99%

Turning Waste into Treasure: Multicolor Carbon Dots Synthesized from Waste Leather Scrap and their Application in Anti-Counterfeiting

Zhang

et al. 2023

ACS Sustainable Chem. Eng.

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Using biomass materials to prepare carbon dots (CDs) has received significant interest. As a cheap and environmentally friendly material, waste leather scrap can be used for the preparation of CDs and performance tuning. Herein, waste leather scrap is used as a precursor reactant to fabricate multicolor (red, green, and blue) carbon dots (R-CDs, G-CDs, and B-CDs) with a tunable emission wavelength via a simple one-step hydrothermal/solvothermal strategy using only a nitrogen source (p-phenylenediamine or o-phenylenediamine) for doping. The morphology, structure, and optical properties of the CDs were investigated by transmission electron microscopy (TEM), Fourier-transform infrared (FT-IR) spectroscopy, X-ray diffraction (XRD), Raman spectroscopy, ζ-potential measurements, X-ray photoelectron spectroscopy (XPS), ultraviolet–visible (UV–vis), spectroscopy, photoluminescence (PL), and UV-differential reflectance spectroscopy (UV-DRS). Results showed that the sizes of R-CDs, G-CDs, and B-CDs are 10.0, 7.4, and 2.5 nm, respectively, and all have a typical crystal plane of graphitic carbon structure rich in chemical groups such as CO, −OH, C–N, etc. The detailed characterization and comparison of the three types of CDs confirm that the size and functional groups can effectively add other energy levels for electron transitions and tuning of luminescent properties of CDs. The emission wavelengths of R-CDs, G-CDs, and B-CDs are 612, 535, and 429 nm, and at the same time, the energy levels were calculated by UV–vis DRS to be 2.11, 2.43, and 2.58 eV, respectively. Because of the stable optical properties and excellent chemical performance, CDs can be employed as ink and flexible films. The utilization of renewable waste leather scrap, along with convenient hydrothermal/solvothermal methods, paves the way to the sustainable, cost-effective synthesis of CDs for practical applications in anti-counterfeiting.

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Waste-to-wealth: Functional biomass carbon dots based on bee pollen waste and application

Cited by 39 publications

References 25 publications

Characteristics of Mussels-Derived Carbon Dots and Their Applications in Bio-Imaging and Detection of Riboflavin

Characteristics of Mussels-Derived Carbon Dots and Their Applications in Bio-Imaging and Detection of Riboflavin

Multifunctional N,S-doped and methionine functionalized carbon dots for on-off-on Fe3+ and ascorbic acid sensing, cell imaging, and fluorescent ink applying

Turning Waste into Treasure: Multicolor Carbon Dots Synthesized from Waste Leather Scrap and their Application in Anti-Counterfeiting

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