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61,005 resultsShowing papers similar to Preparation of N, Cl Co-Doped Lignin Carbon Quantum Dots and Detection of Microplastics in Water
ClearRevolutionizing microplastic detection in water through quantum dot fluorescence
Researchers developed a novel approach using carbon quantum dots to stain microplastics, enabling fluorescence-based detection in water at low cost and with simple synthesis, demonstrating high sensitivity and selectivity without the toxicity concerns of conventional fluorescent dyes.
Revolutionizing microplastic detection in water through quantum dot fluorescence
This study introduced carbon quantum dot-based fluorescence staining for microplastic detection in water, achieving sensitive and selective identification through microwave-assisted synthesis without complex pretreatment, offering a practical low-cost alternative to conventional detection methods.
Revolutionizing microplastic detection in water through quantum dot fluorescence
Researchers developed a quantum dot fluorescence-based detection system for microplastics in water, achieving sensitive and rapid identification of multiple polymer types with lower detection limits and faster analysis times than conventional spectroscopic methods.
Production of Carbon Quantum Dots Based on Oil Palm Fronds for Polyethylene and Polyethylene Terephthalate Microplastics Detection
Researchers synthesized carbon quantum dots from oil palm frond waste and tested their fluorescence properties for detecting polyethylene and PET microplastics. The bio-based quantum dots provided a cost-effective and environmentally friendly sensing approach for identifying common plastic polymers in environmental samples.
Size- and Concentration-Resolved Detection of PET Microplastics in Real Water via Excitation–Emission Matrix Fluorescence Quenching of Polyamide-Derived Carbon Quantum Dots
Scientists developed a new method to detect tiny plastic particles (called microplastics) in drinking water using special fluorescent dots that dim when they encounter plastic pollution. The technique works best at finding very small plastic pieces—smaller than the width of a human hair—which are hardest to detect but potentially most dangerous since they can get into our bodies more easily. This could help monitor plastic contamination in tap water and other water sources we use daily, giving us better information about our exposure to these harmful particles.
Advances and prospects of carbon dots for microplastic analysis
This review assessed the potential of carbon dots, luminescent nanomaterials derived from carbon sources, as tools for microplastic detection and analysis in food and environmental samples, offering advantages in sensitivity and selectivity over conventional methods. The authors identify carbon dot-based sensing as a promising direction for filling the gap in standardized microplastic analytical methods.
Plastic-derived carbon dots for sustainable environmental applications
Researchers developed a method to convert waste plastic into carbon dots — ultrasmall carbon nanomaterials with tunable photoluminescence and low toxicity — offering a sustainable approach to upcycling non-biodegradable plastic waste for environmental sensing and remediation applications.
Recent Advances in the Synthesis, Characterization, and Application of Carbon Dots in the Field of Wastewater Treatment: A Comprehensive Review
This review covers carbon dots, a type of nanomaterial that can be used to detect and remove pollutants from wastewater, including heavy metals, dyes, and organic chemicals. Carbon dots can improve water filtration membranes and boost the effectiveness of biological treatment systems. While not directly about microplastics, these technologies could be adapted to help detect and filter microplastics from drinking water and wastewater.
The Future of Water Purification with Carbon and Graphene Quantum dots: a Comprehensive Review
This review examined traditional and advanced water purification technologies, with a focus on quantum dot-based systems incorporating carbon and graphene quantum dots for removing emerging contaminants including microplastics. The authors assessed the photocatalytic and adsorptive mechanisms that make quantum dots promising for next-generation water treatment.
Sustainable microplastic detection using boron-doped carbon dots synthesized from chicken feathers
Researchers synthesized fluorescent boron-doped carbon dots from chicken feathers via one-pot sonochemical processing and demonstrated their use for detecting microplastics in water. The approach converts a poultry farming waste stream into a sustainable optical sensing material, offering a low-cost, environmentally friendly alternative to conventional microplastic detection probes.
Environmental applications of carbon dots: Addressing microplastics, air and water pollution
This review examined how carbon dots, a class of nanomaterials, can be applied to environmental challenges including microplastic detection, air quality monitoring, and water purification. Researchers found that the unique optical and chemical properties of carbon dots make them particularly promising for sensing and removing pollutants. The study highlights the versatility of these materials as tools for addressing multiple forms of environmental contamination.
Synthesis and characterization of magnetic nanoparticles functionalized with carbon-based quantum dots (CQDs) for microplastic elimination
Researchers developed magnetic nanoparticles decorated with carbon quantum dots capable of removing microplastics from water using a magnet. This Spanish-language study demonstrates a promising approach to extracting small plastic particles from contaminated water that standard filtration systems miss.
Phosphorescent Naphthalene-Doped Carbon Nitride Quantum Dots for Selective Detection of Polyamide Microplastics
Researchers created phosphorescent quantum dots that specifically bind to polyamide microplastics through hydrogen bonding and used them to develop a selective detection method. Because phosphorescence has a longer lifetime than fluorescence, the technique avoids interference from background fluorescence in environmental samples. The method achieved 91-108% recovery rates in pond water and mud samples, enabling detection of polyamide microplastics without complex pretreatment.
Recent Advances in Functionalized Carbon Quantum Dots Integrated with Metal–Organic Frameworks: Emerging Platforms for Sensing and Food Safety Applications
This review covers advances in combining carbon quantum dots with metal-organic frameworks to create highly sensitive sensors for detecting food contaminants like heavy metals, pesticides, antibiotics, and pathogens. While not directly about microplastics, these sensing technologies could be adapted to help detect plastic contamination in food and environmental samples.
PARAFAC- and PCA-Resolved Excitation–Emission Matrix Fluorescence of Ultra-Fine Polyamide-Derived Carbon Quantum Dots for Mechanistic Microplastic Discrimination
This study developed a fluorescence sensing platform using ultra-fine polyamide-derived carbon quantum dots (CQDs) with PARAFAC and PCA chemometric analysis to rapidly and selectively discriminate microplastic polymer types. The mechanism-driven approach achieved polymer-specific resolution that single-wavelength CQD sensors cannot provide.
Nitrogen-Doped Carbon Dots Derived from Onion Peel (Allium cepa) for Fluorescence-Based Detection of Microplastics
Researchers synthesized fluorescent nitrogen-doped carbon dots from onion peel and used them to detect high-density and low-density polyethylene microplastics, finding that the particles produced excitation-dependent fluorescence that enabled selective detection of both plastic types.
Polydopamine-encapsulated carbon dots to boost analytical performance for microplastics detection in fluorescence mode
Sulfur-doped carbon dots encapsulated with polydopamine (S-CDs@PDA) were used to detect polyethylene microplastics via fluorescence, showing 21.3% higher fluorescence signal and 8% better detection efficiency than uncoated carbon dots on modified membrane substrates.
Selective Identification and Quantification of Microplastics Using Solid Fluorescent Green Carbon Dots (SFGCDs) – A Novel, Naked Eye Sensing Fluoroprobe
Researchers developed a novel fluorescent carbon dot probe that can selectively detect and quantify microplastics released from surgical face masks and cosmetic cleansers. The probe works through a fluorescence turn-off mechanism when microplastics are present, with a detection limit as low as 0.0063 g/L for particles 6 micrometers and larger. The study also demonstrated a simple filtration-based remediation approach, with the fluorescence signal recovering after microplastic removal.
Lignin/Poly(vinyl alcohol) Hydrogel for Detecting and Effectively Removing Microplastics
Researchers synthesized a lignin/polyvinyl alcohol hydrogel from bamboo-derived aminated lignin and showed it could effectively detect and adsorb polystyrene microplastics from water, demonstrating a biobased approach to microplastic removal.
Novel simple accurate detection of microplastics based on image of photoluminescent nanoparticle carbon dots via machine learning and deep feature embedding
Researchers developed a simpler, more affordable method for detecting microplastics using fluorescent carbon dot nanoparticles combined with machine learning image analysis. The approach achieved highly accurate detection of PET microplastics by analyzing the glow patterns produced when carbon dots interact with plastic particles. The study suggests this optical-computational method could make microplastic monitoring more accessible by reducing the need for expensive specialized laboratory equipment.
Unlocking the Potential of Carbon Quantum Dots for Cell Imaging, Intracellular Localization, and Gene Expression Control in Arabidopsis thaliana (L.) Heynh.
This paper is not relevant to microplastics research — it investigates how carbon quantum dots are transported and affect gene expression in Arabidopsis plants, with no connection to microplastic contamination.
PhosphorescentNaphthalene-Doped Carbon Nitride QuantumDots for Selective Detection of Polyamide Microplastics
Researchers synthesized phosphorescent naphthalene-doped carbon nitride quantum dots that selectively bind to polyamide microplastics via hydrogen bonding, enabling background-free phosphorescence imaging for specific detection of PA particles in complex environmental samples. The approach overcomes the overestimation problem caused by nonspecific fluorescent dyes by exploiting time-gated phosphorescence to eliminate background autofluorescence.
Coumarin 6 staining method to detect microplastics
Researchers developed a fluorescence staining method using coumarin 6 dye to detect microplastics, offering a simpler and lower-cost detection approach compared to spectroscopic methods while maintaining adequate specificity for identifying plastic particles in environmental samples.
In Situ Fluorescent Illumination of Microplastics in Water Utilizing a Combination of Dye/Surfactant and Quenching Techniques
Researchers developed an in situ fluorescent microplastic detection method using a nonpolar dye combined with surfactant to form nanoscale dye particles that selectively adsorb onto and penetrate plastic polymer matrices in water, then quenched free dye fluorescence using aniline to enable direct visualization of stained microplastics without filtration.