Turmeric carbon quantum dots enhanced chitosan nanocomposite films based on photodynamic inactivation technology for antibacterial food packaging

Carbohydrate Polymers, Год журнала: 2023, Номер 311, С. 120784 - 120784

Опубликована: Март 8, 2023

Язык: Английский

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Friends against the Foe: Synergistic Photothermal and Photodynamic Therapy against Bacterial Infections

Pharmaceutics, Год журнала: 2023, Номер 15(4), С. 1116 - 1116

Опубликована: Март 31, 2023

Multidrug-resistant (MDR) bacteria are rapidly emerging, coupled with the failure of current antibiotic therapy; thus, new alternatives for effectively treating infections caused by MDR required. Hyperthermia-mediated photothermal therapy (PTT) and reactive oxygen species (ROS)-mediated photodynamic (PDT) have attracted extensive attention as antibacterial therapies owing to advantages such low invasiveness, toxicity, likelihood causing bacterial resistance. However, both strategies notable drawbacks, including high temperature requirements PTT weak ability PDT-derived ROS penetrate target cells. To overcome these limitations, a combination PDT has been used against bacteria. In this review, we discuss unique benefits limitations The mechanisms underlying synergistic effects PTT–PDT also discussed. Furthermore, introduced advancements in methods using nano-based agents treat Finally, highlight existing challenges future perspectives We believe that review will encourage PTT- PDT-based research can be referenced clinical applications.

Язык: Английский

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Fluorescent carbon quantum dots with controllable physicochemical properties fantastic for emerging applications: A review

Carbon Neutralization, Год журнала: 2024, Номер 3(2), С. 245 - 284

Опубликована: Март 1, 2024

Abstract Carbon quantum dots (CQDs) have emerged as prominent contenders in the realm of luminescent nanomaterials over past decade owing to their tunable optical properties, robust photostability, versatile surface functionalization and doping potential, low toxicity, straightforward synthesis utilizing environmentally friendly precursors. In this review, we commence with a concise introduction, presenting both top‐down bottom‐up strategies for eco‐friendly CQDs. Subsequently, delve into comprehensive examination CQDs' structure characteristics, encompassing ultraviolet–visible absorption confinement effects, state emissions contributing room‐temperature photoluminescence (PL). This review proceeds elucidate recent advancements modification CQDs, specifically focusing on oxidation, passivation, incorporation heteroatoms. These serve afford control physicochemical facilitating enhancement PL through decoration highly visible‐responsive is achieved by suppressing nonradiative recombination electron‐hole pairs, enabling red/blue shifts CQDs generation full‐color emission spectrum, regulating band‐gap states broaden photoabsorption range. Finally, offer an overview most developments applications fluorescent emphasizing utility biomedicine, sensors, lighting, displays, well photocatalysis.

Язык: Английский

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Therapeutic contact lenses for the treatment of corneal and ocular surface diseases: Advances in extended and targeted drug delivery

International Journal of Pharmaceutics, Год журнала: 2023, Номер 638, С. 122740 - 122740

Опубликована: Фев. 20, 2023

Язык: Английский

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Antimicrobial carbon materials-based quantum dots: From synthesis strategies to antibacterial properties for diagnostic and therapeutic applications in wound healing

Coordination Chemistry Reviews, Год журнала: 2024, Номер 522, С. 216211 - 216211

Опубликована: Сен. 18, 2024

Язык: Английский

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A Comprehensive Review on Nitrogen-Doped Carbon Dots for Antibacterial Applications

Journal of environmental chemical engineering, Год журнала: 2024, Номер unknown, С. 114444 - 114444

Опубликована: Окт. 1, 2024

Язык: Английский

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Carbon dots for photothermal applications

Frontiers in Chemistry, Год журнала: 2022, Номер 10

Опубликована: Окт. 12, 2022

Carbon dots are zero-dimensional nanomaterials that have garnered significant research interest due to their distinct optical properties, biocompatibility, low fabrication cost, and eco-friendliness. Recently, light-to-heat conversion ability has led several novel photothermal applications. In this minireview, we categorize describe the application of carbon along with methods incorporated enhance efficiency. We also discuss possible mechanisms by which effect is realized in these carbon-based nanoparticles. Taken together, hope provide a comprehensive landscape highlighting promising directions for using

Язык: Английский

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Caffeic acid-grafted chitosan/sodium alginate/nanoclay-based multifunctional 3D-printed hybrid scaffolds for local drug release therapy after breast cancer surgery

Carbohydrate Polymers, Год журнала: 2023, Номер 324, С. 121441 - 121441

Опубликована: Окт. 4, 2023

Язык: Английский

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Carbon Dots in Photodynamic/Photothermal Antimicrobial Therapy

Nanomaterials, Год журнала: 2024, Номер 14(15), С. 1250 - 1250

Опубликована: Июль 25, 2024

Antimicrobial resistance (AMR) presents an escalating global challenge as conventional antibiotic treatments become less effective. In response, photodynamic therapy (PDT) and photothermal (PTT) have emerged promising alternatives. While rooted in ancient practices, these methods evolved with modern innovations, particularly through the integration of lasers, refining their efficacy. PDT harnesses photosensitizers to generate reactive oxygen species (ROS), which are detrimental microbial cells, whereas PTT relies on heat induce cellular damage. The key effectiveness lies utilization photosensitizers, especially when integrated into nano- or micron-scale supports, amplify ROS production enhance antimicrobial activity. Over last decade, carbon dots (CDs) a highly nanomaterial, attracting increasing attention owing distinctive properties versatile applications, including PTT. They can not only function but also synergistically combine other overall This review explores recent advancements CDs, underscoring significance potential reshaping advanced therapeutics.

Язык: Английский

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Antimicrobial activity and mechanisms of carbon quantum dot decorated modified zinc oxide nanoparticles against oral pathogenic bacteria

Results in Chemistry, Год журнала: 2024, Номер 9, С. 101655 - 101655

Опубликована: Июль 1, 2024

Caries represents one of the most prevalent bacterial infectious diseases in oral cavity. Over decades, researchers have been actively seeking nanomaterials capable inhibiting pathogenic bacteria. We utilized a one-pot hydrothermal method to synthesize CQDs with multicolor luminescence and CQD-loaded ZnO composite nanomaterials. FE-SEM revealed that rod-like structure CQDs/ZnO becomes finer increased content. XRD XPS confirmed presence all components within nanocomposites. compared antimicrobial activities ZnO, 7.7% 14.3% against Streptococcus mutans, Enterococcus faecalis, Escherichia coli, Staphylococcus aureus. The exhibited effective antibacterial activity. ONPG assays demonstrated disrupted membrane alters permeability. ESR, DPBF ROS assayed further 1O2 produced by accumulated at cell disrupts its structure.

Язык: Английский

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