Recent advancements of solid-state emissive carbon dots: A review

Coordination Chemistry Reviews, Год журнала: 2023, Номер 498, С. 215469 - 215469

Опубликована: Сен. 29, 2023

Язык: Английский

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CuS/Co-Ferrocene-MOF Nanocomposites for Photothermally Enhanced Chemodynamic Antibacterial Therapy

ACS Applied Nano Materials, Год журнала: 2024, Номер 7(9), С. 10998 - 11007

Опубликована: Апрель 29, 2024

Infections caused by bacteria pose a serious threat to public health, and there is need for numerous innovative, antibiotic-free antimicrobial medicines. Herein, we describe the synthesis of CuS/Co-ferrocene-MOF (CuS/Co-Fc-MOF) nanocomposites, formed coupling CuS nanoparticles (NPs) two-dimensional (2D) Co-Fc-MOF nanosheets, that constitutes an platform capable near-infrared (NIR) photothermal promotion chemodynamic antibacterial. 2D CuS/Co-Fc-MOF nanocomposites consist nanosheets with dimensions approximately 100–200 nm thicknesses 13.1–15.6 nm, where NPs, size about 8 are excellently dispersed on surface nanosheets. The diverse valence states cobalt iron in enable them undergo Fenton-like reactions H2O2, thus generating highly oxidizing ·OH therapy (CDT). utilization local plasmonic resonance effect NPs enables enhancement CDT activity under laser irradiation. More importantly, can achieve rapid (15 min) NIR laser-assisted killing both S. aureus E. coli bacterial infection microenvironment compared Therefore, be employed as promising nanoagent promote photothermally augmented antibacterial therapy.

Язык: Английский

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Carbon dots as a novel photosensitizer for photodynamic therapy of cancer and bacterial infectious diseases: recent advances

Journal of Nanobiotechnology, Год журнала: 2024, Номер 22(1)

Опубликована: Апрель 26, 2024

Carbon dots (CDs) are novel carbon-based nanomaterials that have been used as photosensitizer-mediated photodynamic therapy (PDT) in recent years due to their good photosensitizing activity. Photosensitizers (PSs) main components of PDT can produce large amounts reactive oxygen species (ROS) when stimulated by light source, which the advantages low drug resistance and high therapeutic efficiency. CDs generate ROS efficiently under irradiation therefore extensively studied disease local phototherapy. In tumor therapy, be PSs or PS carriers participate play an extremely important role. bacterial infectious diseases, exhibit bactericidal activity effective disrupting cell membranes leading death upon photoactivation. We focus on advances cancer bacteria with CDs, also briefly summarize mechanisms requirements for cancer, other diseases. discuss role combination potential future applications against pathogens.

Язык: Английский

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D‐cysteine‐Derived Carbon Dots for Selective Discrimination, Imaging, and Synergistic Elimination of Gram‐Positive Bacteria and Fungi

Advanced Functional Materials, Год журнала: 2024, Номер 34(38)

Опубликована: Апрель 30, 2024

Abstract Microbial infections pose a significant threat to public health, exacerbated by the escalating issue of antibiotic resistance resulting from their overuse. Chiral carbon dots (CDs) not only inherit antibacterial properties CDs but also demonstrate highly selective chiral bactericidal activity. This study focuses on development synthesized D‐ and L‐cysteine, selectively identify synergistically eradicate Gram‐positive bacteria fungi. exhibit high efficacy in staining fungi while demonstrating minimal no fluorescence with Gram‐negative bacteria, attributable variances membrane structures these pathogens. D‐CDs stronger signals greater against compared L‐CDs. Under dual light irradiation, bolster activity through triple‐modal mechanism, involving disruption absence light, singlet oxygen generation during photodynamic therapy, elevated temperature photothermal treatment. Animal studies additionally showcase that notably enhanced healing wounds infected S. aureus under laser exposure. investigation underscores chiral‐specific imaging potentials D‐CDs, paving way for advancement nanomaterials bacterial diagnostics therapy.

Язык: Английский

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Nanotechnology of carbon dots with their hybrids for biomedical applications: A review

Chemical Engineering Journal, Год журнала: 2024, Номер 496, С. 153915 - 153915

Опубликована: Июль 14, 2024

Язык: Английский

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Antimicrobial properties of carbon “quantum” dots for food safety applications

Journal of Nanoparticle Research, Год журнала: 2025, Номер 27(2)

Опубликована: Янв. 31, 2025

Abstract Carbon dots represent a rapidly advancing and expanding research field, with large number of literature reports on their potential technological applications including those relevant to food safety. In this article, the dot samples prepared by deliberate chemical functionalization preexisting small carbon nanoparticles or thermal carbonization various organic precursors under different processing conditions are highlighted critiqued for similarities differences in sample structure-morphology properties, especially antimicrobial properties safety–related uses. Also discussed representative recent examples use inactivate foodborne pathogens, disrupt biofilms prevent formation, extend shelf life products, which involve antibacterial mechanisms. Some perspectives further development dots–based/derived platform related excellent application opportunities safety provided.

Язык: Английский

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Recent advances in nanomaterials and their mechanisms for infected wounds management

Materials Today Bio, Год журнала: 2025, Номер 31, С. 101553 - 101553

Опубликована: Фев. 5, 2025

Wounds infected by bacteria pose a considerable challenge in the field of healthcare, particularly with increasing prevalence antibiotic-resistant pathogens. Traditional antibiotics often fail to achieve effective results due limited penetration, resistance development, and inadequate local concentration at wound sites. These limitations necessitate exploration alternative strategies that can overcome drawbacks conventional therapies. Nanomaterials have emerged as promising solution for tackling bacterial infections facilitating healing, thanks their distinct physicochemical characteristics multifunctional capabilities. This review highlights latest developments nanomaterials demonstrated enhanced antibacterial efficacy improved healing outcomes. The mechanisms are varied, including ion release, chemodynamic therapy, photothermal/photodynamic electrostatic interactions, delivery drugs, which not only combat but also address challenges posed biofilms antibiotic resistance. Furthermore, these create an optimal environment tissue regeneration, promoting faster closure. By leveraging unique attributes nanomaterials, there is significant opportunity revolutionize management wounds markedly improve patient

Язык: Английский

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A new nanomaterial - carbonized polymer dots and their applications: A review

Carbon, Год журнала: 2025, Номер unknown, С. 120122 - 120122

Опубликована: Фев. 1, 2025

Язык: Английский

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Highly fluorescent N, F co-doped carbon dots with tunable light emission for multicolor bio-labeling and antibacterial applications

Journal of Hazardous Materials, Год журнала: 2023, Номер 459, С. 132331 - 132331

Опубликована: Авг. 18, 2023

Язык: Английский

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Highly Antibacterial and Antioxidative Carbon Nanodots/Silk Fibroin Films for Fruit Preservation

Nano Letters, Год журнала: 2023, Номер 23(24), С. 11755 - 11762

Опубликована: Дек. 13, 2023

The issues of fruit waste and safety resulting from rot have spurred a demand for improved packaging systems. Herein, we present highly antibacterial antioxidative carbon nanodot/silk fibroin (CD/SF) films preservation. are composed CDs SF together with small amount glycerol via hydrogen bonding, exhibiting outstanding biosafety, transparency, stretchability. effectively integrate key functionalities (atmosphere control, resistance to food-borne pathogens, antioxidation properties) can be manufactured in large sizes (about 20 × 30 cm), boasting transmission rate 13 183 cm3/m2·day oxygen 2860 g/m2·day water vapor, favoring the preservation fresh fruits. A convenient dip-coating method enables situ fabrication thickness approximately 14 μm directly on fruits' surface providing comprehensive protection. Importantly, washable biodegradable. This work presents promising technology produce multifunctional eco-friendly

Язык: Английский

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