Carbon dots applications for development of sustainable technologies for food safety: A comprehensive review

Manzoor, Sobiya; Dar, Aamir Hussain; Dash, Kshirod Kumar; Pandey, Vinay Kumar; Srivastava, Shivangi; Bashir, Iqra; Khan, Shafat Ahmad

doi:10.1016/j.afres.2023.100263

Cited by 18 publications

(6 citation statements)

References 184 publications

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“…A carbon-based nanomaterial with much better sustainability characteristics than CNT is carbon dots (CD) [ 71 , 72 ]. CDs can be easily prepared from any carbon precursor, including carbon residuals [ 72 ], and have been proposed as sustainable nanomaterials [ 73 , 74 ]. However, CDs have only been described in a small number of papers as adsorbent materials for PFAS [ 75 , 76 ] and/or as sensors [ 77 , 78 , 79 ] for PFAS.…”

Section: Nanomaterials-based Aops and Arpsmentioning

confidence: 99%

Nanomaterial-Based Advanced Oxidation/Reduction Processes for the Degradation of PFAS

Cardoso

Silva

2023

Nanomaterials

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This review focuses on a critical analysis of nanocatalysts for advanced reductive processes (ARPs) and oxidation processes (AOPs) designed for the degradation of poly/perfluoroalkyl substances (PFAS) in water. Ozone, ultraviolet and photocatalyzed ARPs and/or AOPs are the basic treatment technologies. Besides the review of the nanomaterials with greater potential as catalysts for advanced processes of PFAS in water, the perspectives for their future development, considering sustainability, are discussed. Moreover, a brief analysis of the current state of the art of ARPs and AOPs for the treatment of PFAS in water is presented.

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Section: Nanomaterials-based Aops and Arpsmentioning

confidence: 99%

Nanomaterial-Based Advanced Oxidation/Reduction Processes for the Degradation of PFAS

Cardoso

Silva

2023

Nanomaterials

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“…Advances in CD preparation techniques have generated CDs with different passivation to confer distinct physicochemical properties. Self-passivating CDs can be generated using microwave-assisted hydrothermal carbonization or onestep high-temperature hydrothermal carbonization of various carbon precursors [217,218]. However, these techniques often require a lengthy preparation process, high reaction temperatures, and/or corrosive synthetic conditions.…”

Section: Challenges To Consider For the Practical Use Of Cdsmentioning

confidence: 99%

Advances in the design and use of carbon dots for analytical and biomedical applications

Adeola,

Clermont-Paquette,

Piekny

et al. 2023

Nanotechnology

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Carbon dots (CDs) have garnered significant interest for their potential use in multiple applications due to their size, fluorescent properties, high photostability, low toxicity and biocompatibility. CDs can be tailored for specific needs, as they can be synthesized with diverse precursors and techniques for functionalization. Since the applications of CDs are rapidly expanding, this review highlights recent developments in this burgeoning field. Specifically, we describe advances in CD synthesis tailored for applications that include pH and temperature sensing, biochemical analysis, and bioimaging. We also discuss various challenges and practical solutions that will drive CD-based research forward. Challenges include the lack of standardized synthesis and purification methods for CDs, the lack of clarity regarding their mechanism of action, and procedural flaws in their applications. In conclusion, we provide recommendations for collaboration among disciplines to bridge existing knowledge gaps and address the key challenges required for CDs to be fully commercialized.

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“…CNPs can be prepared through various methods which are mainly divided into two technologies: (1) top-down (laser ablation, ultrasound, and electrochemistry) and (2) bottom-up (microwave digestion, thermal decomposition, ultrasound, and hydrothermal method) technologies [ 17 , 18 , 19 , 20 ]. However, top-down technology has limitations, such as expensive and complicated equipment and higher toxicity of the attained NPs than bottom-up technology, which is more convenient and has a shorter reaction time [ 21 ].…”

Section: Introductionmentioning

confidence: 99%

Photodynamic Antibacterial Therapy of Gallic Acid-Derived Carbon-Based Nanoparticles (GACNPs): Synthesis, Characterization, and Hydrogel Formulation

Dechsri,

Suwanchawalit,

Patrojanasophon

et al. 2024

Pharmaceutics

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Carbon-based nanoparticles (CNPs) have gained recognition because of their good biocompatibility, easy preparation, and excellent phototherapy properties. In biomedicine applications, CNPs are widely applied as photodynamic agents for antibacterial purposes. Photodynamic therapy has been considered a candidate for antibacterial agents because of its noninvasiveness and minimal side effects, especially in the improvement in antibacterial activity against multidrug-resistant bacteria, compared with conventional antibiotic medicines. Here, we developed CNPs from an active polyhydroxy phenolic compound, namely, gallic acid, which has abundant hydroxyl groups that can yield photodynamic effects. Gallic acid CNPs (GACNPs) were rapidly fabricated via a microwave-assisted technique at 200 °C for 20 min. GACNPs revealed notable antibacterial properties against Gram-positive and Gram-negative bacteria, including Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli). The minimum inhibitory concentrations of GACNPs in S. aureus and E. coli were equal at approximately 0.29 mg/mL and considerably lower than those in gallic acid solution. Furthermore, the GACNP-loaded hydrogel patches demonstrated an attractive photodynamic effect against S. aureus, and it was superior to that of Ag hydrofiber®, a commercial material. Therefore, the photodynamic properties of GACNPs can be potentially used in the development of antibacterial hydrogels for wound healing applications.

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Carbon dots applications for development of sustainable technologies for food safety: A comprehensive review

Cited by 18 publications

References 184 publications

Nanomaterial-Based Advanced Oxidation/Reduction Processes for the Degradation of PFAS

Nanomaterial-Based Advanced Oxidation/Reduction Processes for the Degradation of PFAS

Advances in the design and use of carbon dots for analytical and biomedical applications

Photodynamic Antibacterial Therapy of Gallic Acid-Derived Carbon-Based Nanoparticles (GACNPs): Synthesis, Characterization, and Hydrogel Formulation

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