Food waste-driven N-doped carbon dots: Applications for Fe3+ sensing and cell imaging

Ahn, Jungbin; Song, Younghan; Kwon, Ji Eon; Lee, Sang Hyun; Park, Ki Soo; Kim, Seokjoon; Woo, Jeongyeon; Kim, Hyungsup

doi:10.1016/j.msec.2019.04.019

Cited by 97 publications

(29 citation statements)

References 46 publications

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“…Nanomaterials with fluorescence properties including carbon dots are having great attention due to its wide application area such as metal ion sensing and biological imaging [1] , [2] , [3] . Herein, we synthesized carbon dots with food waste-driven cat feed stock and sandwich leftover.…”

Section: Datamentioning

confidence: 99%

“…Radiative lifetime was can be calculated from the average lifetime (τ av ) and the fluorescence quantum yield (φ) using Equation (2) . The lifetime and the radiative/non-radiative recombination rate are finally obtained from the radiative and non-radiative lifetimes using Equations (3) , (4) ( Table 1 of [1] )

where

= fluorescence quantum yield,

= average lifetime,

= radiative lifetime,

= non-radiative lifetime,

= radiative recombination rate constant and

= non-radiative recombination rate constant.…”

Section: Datamentioning

confidence: 99%

“…The TEM images of synthesized CDs their size distribution can be seen in Fig. 1 of [1].

Fig. 1(a) High resolution XPS spectra of O1s and (b) the speciation of the nitrogen bonding of the samples.…”

Section: Datamentioning

confidence: 99%

“…Radiative lifetime was can be calculated from the average lifetime (τ av ) and the fluorescence quantum yield (φ) using Equation (2). The lifetime and the radiative/non-radiative recombination rate are finally obtained from the radiative and non-radiative lifetimes using Equations (3), (4) (Table 1 of [1])φ=τavτr…”

Section: Datamentioning

confidence: 99%

“…The TEM images of FWCDs can be seen in Fig. 5a of [1].

Fig. 3(a) The digital image of precursors for FWCDs and (b) emission peaks excited by each wavelength, which indicated by individual colors.

Fig.…”

Section: Datamentioning

confidence: 99%

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Characterization of food waste-driven carbon dot focusing on chemical structural, electron relaxation behavior and Fe3+ selective sensing

et al. 2019

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In the study, carbon dot (CD) with high fluorescence properties was obtained via one-step hydrothermal carbonization of food model and sandwich leftover, respectively. The data in the article represent the change of the chemical structure and PL properties of the food waste-driven carbon dot (FWCDs). In higher carbonization temperature, pyridinic N and graphitic N were increased while amino N and pyrrolic N was decreased. The lifetime was increased with the increase of temperature. The CD prepared from sandwich leftover showed the dependency of the emission on the exciting wavelength and excellent Fe 3+ sensitivity without significant change of lifetime. It also had a pH-sensitive fluorescence feature and good stability in NaCl solutions. For more insight, please see Food waste-driven N-doped carbon dots: Applications for Fe 3+ sensing and cell imaging Ahn et al., 2019.

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Section: Datamentioning

confidence: 99%

where

= fluorescence quantum yield,

= average lifetime,

= radiative lifetime,

= non-radiative lifetime,

= radiative recombination rate constant and

= non-radiative recombination rate constant.…”

Section: Datamentioning

confidence: 99%

“…The TEM images of synthesized CDs their size distribution can be seen in Fig. 1 of [1].

Fig. 1(a) High resolution XPS spectra of O1s and (b) the speciation of the nitrogen bonding of the samples.…”

Section: Datamentioning

confidence: 99%

“…Radiative lifetime was can be calculated from the average lifetime (τ av ) and the fluorescence quantum yield (φ) using Equation (2). The lifetime and the radiative/non-radiative recombination rate are finally obtained from the radiative and non-radiative lifetimes using Equations (3), (4) (Table 1 of [1])φ=τavτr…”

Section: Datamentioning

confidence: 99%

“…The TEM images of FWCDs can be seen in Fig. 5a of [1].

Fig. 3(a) The digital image of precursors for FWCDs and (b) emission peaks excited by each wavelength, which indicated by individual colors.

Fig.…”

Section: Datamentioning

confidence: 99%

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Characterization of food waste-driven carbon dot focusing on chemical structural, electron relaxation behavior and Fe3+ selective sensing

et al. 2019

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The Food–Materials Nexus: Next Generation Bioplastics and Advanced Materials from Agri‐Food Residues

et al. 2021

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The most recent strategies available for upcycling agri‐food losses and waste (FLW) into functional bioplastics and advanced materials are reviewed and the valorization of food residuals are put in perspective, adding to the water–food–energy nexus. Low value or underutilized biomass, biocolloids, water‐soluble biopolymers, polymerizable monomers, and nutrients are introduced as feasible building blocks for biotechnological conversion into bioplastics. The latter are demonstrated for their incorporation in multifunctional packaging, biomedical devices, sensors, actuators, and energy conversion and storage devices, contributing to the valorization efforts within the future circular bioeconomy. Strategies are introduced to effectively synthesize, deconstruct and reassemble or engineer FLW‐derived monomeric, polymeric, and colloidal building blocks. Multifunctional bioplastics are introduced considering the structural, chemical, physical as well as the accessibility of FLW precursors. Processing techniques are analyzed within the fields of polymer chemistry and physics. The prospects of FLW streams and biomass surplus, considering their availability, interactions with water and thermal stability, are critically discussed in a near‐future scenario that is expected to lead to next‐generation bioplastics and advanced materials.

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A Straightforward Approach for High‐Level Anticounterfeiting and Antibacterial Applications Based on Photoluminescent Fibers/Yarns

Lyu

Zhao

et al. 2021

Adv Materials Technologies

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Recently, emergent luminescent fibers have attracted extensive attention due to their intriguing applications. However, developments of the luminescent fibers are severely limited by their high‐cost and low efficient manufacturing protocols including in situ growth, dry‐wet spinning, co‐electrospinning, and multistep dip‐coating. Herein, a cost‐efficient and large‐scalable approach (namely, one‐step dip‐coating) is proposed. In this work, the photoluminescent fibers/yarns are fabricated by one‐step dipping of pristine fibers/yarns in dispersions of hybrid dots (silicon/carbon). Subsequently, Janus fabrics with striking photoluminescent patterns are developed by weaving, knitting, and braiding, respectively. An innovative anticounterfeiting technique is further developed by combing the merits of the photoluminescent fibers/yarns with textile weaving methods. The designed photoluminescent patterns can endow the weaving fabrics with excellent concealment performance. As far as it is well known, it is the first time to achieve asymmetric photoluminescent patterns on two sides of the woven fabrics by this innovative technology. Additionally, the fabrics treated with hybrid dots exhibit excellent antibacterial ability against both Staphylococcus aureus and Escherichia coli. These findings can not only provide an unprecedented insight for realizing high‐level anticounterfeiting applications, but also guide to exploit versatile applications in medical care, fashion design, stage performances, trademark, and confidential documents in the future.

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Food waste-driven N-doped carbon dots: Applications for Fe3+ sensing and cell imaging

Cited by 97 publications

References 46 publications

Characterization of food waste-driven carbon dot focusing on chemical structural, electron relaxation behavior and Fe3+ selective sensing

Characterization of food waste-driven carbon dot focusing on chemical structural, electron relaxation behavior and Fe3+ selective sensing

The Food–Materials Nexus: Next Generation Bioplastics and Advanced Materials from Agri‐Food Residues

A Straightforward Approach for High‐Level Anticounterfeiting and Antibacterial Applications Based on Photoluminescent Fibers/Yarns

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