Carbon, Год журнала: 2025, Номер unknown, С. 120122 - 120122
Опубликована: Фев. 1, 2025
Язык: Английский
Chemical Reviews, Год журнала: 2023, Номер 123(18), С. 11047 - 11136
Опубликована: Сен. 7, 2023
Advances in nanotechnology and nanomaterials have attracted considerable interest play key roles scientific innovations diverse fields. In particular, increased attention has been focused on carbon-based exhibiting extended structures unique properties. Among these materials, zero-dimensional structures, including fullerenes, carbon nano-onions, nanodiamonds, dots, possess excellent bioaffinities superior fluorescence properties that make suitable for application to environmental biological sensing, imaging, therapeutics. This review provides a systematic overview of the classification structural properties, design principles preparation methods, optical sensing applications nanomaterials. Recent interesting breakthroughs sensitive selective imaging heavy metal pollutants, hazardous substances, bioactive molecules as well information encryption, super-resolution photoacoustic phototherapy nanomedicine delivery are main focus this review. Finally, future challenges prospects materials highlighted envisaged. presents comprehensive basis directions designing, developing, applying fascinating fluorescent sensors fabricated based specific requirements numerous research
Язык: Английский
Процитировано
114
Advanced Materials, Год журнала: 2024, Номер 36(31)
Опубликована: Май 13, 2024
Achieving thermochromic afterglow (TCAG) in a single material for advanced information encryption remains significant challenge. Herein, TCAG carbon dots (CDs)-inked paper (CDs@Paper) is achieved by tuning the temperature-dependent dual-mode of room temperature phosphorescence (RTP) and thermally activated delayed fluorescence (TADF). The CDs are synthesized through thermal treatment levofloxacin melting boric acid with postpurification via dialysis. CDs@Paper exhibit both excitation-dependent color properties. exhibits dynamic changes from blue at high temperatures to yellow low adjusting proportion TADF phosphorescence. Notably, two-photon CDs-based materials time-dependent colors first time. Moreover, leveraging opposite emission responses temperature, demonstrate temperature-sensing capabilities across wide range. Furthermore, CDs@Paper-based 3D code containing successfully developed encryption.
Язык: Английский
Процитировано
48
Advanced Functional Materials, Год журнала: 2024, Номер 34(32)
Опубликована: Май 13, 2024
Abstract TiO 2 photocatalysis has gained attention as a cost‐effective way of degrading contaminants. However, it relies on UV excitation and experiences rapid carrier recombination. To address these drawbacks, novel xylan‐based carbon dots@hydrogenated (CDs@TiO 2‐x ) composited by direct Z‐scheme heterojunction is fabricated visible light‐driven photocatalytic material, which broadens the range light absorption to suppresses recombination photogenerated carriers. The spindle‐shaped CDs@TiO C/N/O/S groups, positive charges, oxygen vacancies its surface, can degrade 89% methylene blue 87% methyl orange within 90 min, 99% rhodamine B 60 min in light. It also eradicates 99.9% E. coli h 97.1% S. aureus 2.5 h. These performances surpass CDs , exhibit advantages similar composite materials. degradation pathways dyes specific antibacterial processes induced ROS are thoroughly investigated through LC‐MS testing related enzyme activity assays. DFT calculations study role vacancies, mechanism, catalytic sites. This developed nanocomposite with applications both dye sterilization, offering insights for multifunctional materials based heterojunction.
Язык: Английский
Процитировано
42
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
Процитировано
39
Coordination Chemistry Reviews, Год журнала: 2024, Номер 516, С. 215987 - 215987
Опубликована: Май 31, 2024
Язык: Английский
Процитировано
22
Advanced Materials, Год журнала: 2024, Номер 36(19)
Опубликована: Фев. 1, 2024
Abstract Low back pain resulting from intervertebral disc degeneration (IVDD) is a prevalent global concern; however, its underlying mechanism remains elusive. Single‐cell sequencing analyses revealed the critical involvement of pyroptosis in IVDD. Considering reactive oxygen species (ROS) as primary instigator and lack an efficient intervention approach, this study developed carbonized Mn‐containing nanodots (MCDs) ROS‐scavenging catalytic biomaterials to suppress nucleus pulposus (NP) cells efficiently alleviate Catalytic MCDs have superior efficacy scavenging intracellular ROS rescuing homeostasis NP microenvironment compared with N‐acetylcysteine, classical antioxidant. The data validates that plays vital role mediating protective effects against oxidative stress. Systematic vivo assessments substantiate effectiveness puncture‐induced IVDD rat model, further demonstrating their ability pyroptosis. This highlights potential antioxidant nanomedicine inhibitor mechanistically unveils strategy for treatment
Язык: Английский
Процитировано
20
ACS Applied Materials & Interfaces, Год журнала: 2024, Номер 16(35), С. 46771 - 46788
Опубликована: Авг. 21, 2024
Electronic skin (e-skin) is considered as a highly promising interface for human-computer interaction systems and wearable electronic devices. Through elaborate design assembly of various materials, it possesses multiple characteristics similar to human skin, including remarkable flexibility, stretchability, sensitivity temperature humidity, biocompatibility, efficient interfacial ion/electron transport capabilities. Here, we innovatively integrate multifunctional carbon quantum dots (CQDs), which exhibit conductivity, antibacterial properties, ultraviolet absorption, fluorescence emission, with poly(acrylic acid) glycerin (Gly) into three-dimensional network structure natural goatskin collagen fibers. top-down strategy enhanced by hydrogen bond reconstruction, successfully fabricated novel transparent e-skin (PAC-eSkin). This exhibited significant tensile properties (4.94 MPa strength 263.42% maximum breaking elongation), while also possessing Young's modulus (2.32 MPa). It noteworthy that the functionalized CQDs used was derived from discarded goat hair, addition Gly gave PAC-eSkin excellent antifreezing moisturizing properties. Due presence ultrasmall CQDs, creates channels within PAC-eSkin, could rapidly sense motion physiological signals (with gauge factor (GF) 1.88). Furthermore, had potential replace traditional electrode patches real-time monitoring electrocardiogram, electromyogram, electrooculogram signals, higher SNR (signal-to-noise ratio) 25.1 dB. Additionally, customizable size shape offer vast possibilities construction single-electrode triboelectric nanogenerator systems. We have reason believe development this based on CQDs-functionalized dermal matrices can pave new way innovations in human–computer interfaces their sensing application diverse scenarios.
Язык: Английский
Процитировано
19
Small, Год журнала: 2024, Номер 20(29)
Опубликована: Фев. 11, 2024
Abstract In recent years, carbon dots (CDs) have garnered increasing attention due to their simple preparation methods, versatile performances, and wide‐ranging applications. CDs can manifest various optical, physical, chemical properties including quantum yield (QY), emission wavelength (Em), solid‐state fluorescence (SSF), room‐temperature phosphorescence (RTP), material‐specific responsivity, pH sensitivity, anti‐oxidation oxidation, biocompatibility. These be effectively regulated through precise control of the CD process, rendering them suitable for diverse However, lack consideration given each feature during process poses a challenge in obtaining requisite features This paper is analyze existing research present novel concepts ideas creating with different distinct The synthesis methods are discussed first section, followed by comprehensive overview important modification strategy. Subsequently, application reviewed. Finally, outlines current challenges controlling applications, discusses potential solutions, offers suggestions future research.
Язык: Английский
Процитировано
18
Nano Letters, Год журнала: 2024, Номер 24(13), С. 4044 - 4053
Опубликована: Март 22, 2024
Fungal keratitis (FK) is an infectious eye disease that poses a significant risk of blindness. However, the effectiveness conventional antifungal drugs limited due to intrinsic ocular barrier impedes drug absorption. There urgent need develop new therapeutic strategies effectively combat FK. Herein, we synthesized ultrasmall positively charged carbon dot using simple stage-melting method. The can penetrate corneal by opening tight junctions, allowing them reach lesion site and kill fungi. results both in vitro vivo demonstrated it exhibited good biocompatibility activity, significantly improving effect mouse model Therefore, this biophilic size positive dot, characterized its ability properties, may offer valuable insights into design effective nanomedicines.
Язык: Английский
Процитировано
15
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
Процитировано
25