The interface of machine learning and carbon quantum dots: From coordinated innovative synthesis to practical application in water control and electrochemistry

Coordination Chemistry Reviews, Год журнала: 2024, Номер 517, С. 215976 - 215976

Опубликована: Июнь 12, 2024

Язык: Английский

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Advances in Graphene-Based Materials for Metal Ion Sensing and Wastewater Treatment: A Review

Environments, Год журнала: 2025, Номер 12(2), С. 43 - 43

Опубликована: Фев. 2, 2025

Graphene-based materials, including graphene oxide (GO) and functionalized derivatives, have demonstrated exceptional potential in addressing environmental challenges related to heavy metal detection wastewater treatment. This review presents the latest advancements graphene-based electrochemical fluorescence sensors, emphasizing their superior sensitivity selectivity detecting ions, such as Pb2⁺, Cd2⁺, Hg2⁺, even complex matrices. The key focus of this is on use molecular dynamics (MD) simulations understand predict ion transport through membranes, offering insights into mechanisms efficiency removing contaminants. Particularly, article reviews effects external conditions, pore radius, functionalization, multilayers water purification provide comprehensive filtration membrane design. Functionalized membranes exhibit enhanced rejection tailored electrostatic interactions size exclusion effects, achieving up 100% rates for selected metals. Multilayered hybrid composites further improve performance structural stability, enabling sustainable, large-scale purification. However, fabrication scalability, impact, cost remain. also highlights importance computational approaches innovative material designs overcoming these barriers, paving way future breakthroughs technologies.

Язык: Английский

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Recent Developments in Colorimetric and Fluorimetric Chemosensors for the Detection of Mn ²⁺ Ions: A Review (2010–2024)

Critical Reviews in Analytical Chemistry, Год журнала: 2025, Номер unknown, С. 1 - 21

Опубликована: Фев. 19, 2025

Manganese is an essential metal ion involved in various biological and environmental processes, but its excess can lead to toxicity, particularly affecting the nervous system. Therefore, developing selective sensitive detection methods for Mn2+ ions of paramount importance. Colorimetric fluorimetric chemosensors have emerged as promising tools due their simplicity, cost-effectiveness, real-time monitoring capabilities. This review discusses recent advances colorimetric that exhibit distinct color or fluorescence changes upon interaction with ions. The explores different organic nanomaterials, focusing on mechanisms sensing, sensitivity, selectivity, practical applications monitoring, healthcare, food safety. article also provides insights into future research directions aimed at overcoming these challenges, improving chemosensor performance, expanding applicability diverse real-world scenarios.

Язык: Английский

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Carbon dots as sensors and sorbents in environmental monitoring protection and chemical analysis

TrAC Trends in Analytical Chemistry, Год журнала: 2024, Номер 176, С. 117767 - 117767

Опубликована: Май 16, 2024

Язык: Английский

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Inulin-Coated ZnO Nanoparticles: A Correlation between Preparation and Properties for Biostimulation Purposes

International Journal of Molecular Sciences, Год журнала: 2024, Номер 25(5), С. 2703 - 2703

Опубликована: Фев. 26, 2024

Within the framework of plant biostimulation, a pivotal role is played by achievement low-cost, easily prepared nanoparticles for priming purposes. Therefore, in this report, two different synthetic strategies are described to engineer zinc oxide with an inulin coating. In both protocols, i.e., two-step and gel-like one-pot highly pure ZnO kernel obtained when reaction carried out at T ≥ 40 °C, as ascertained XRD ATR/FTIR studies. However, uniformly dispersed, homogeneous coating achieved primarily temperatures, 60 °C employed phases step-wise synthesis. addition, binding mechanism, complexation, occurs case. When process employed, high degree coverage fructan attained, leading micrometric coated aggregates nanometric particles, revealed SEM investigations. All NPs from synthesis feature electronic bandgaps 3.25-3.30 eV range line previous studies, whereas extensive causes remarkable 0.4 decrease bandgap. Overall, global analysis investigations indicates that samples synthesized best suited biostimulation. Proof-of-principle assays upon

Язык: Английский

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Synthesis and Characterization of Lignocellulose-Based Carbon Quantum Dots (CQDs) and Their Antimicrobial and Antioxidant Functionalities

Molecules, Год журнала: 2025, Номер 30(3), С. 667 - 667

Опубликована: Фев. 3, 2025

Carbon quantum dots (CQDs) have recently drawn enormous attention due to not only their unique chemical, biological, and optical properties but also because a variety of renewable biomasses are readily utilized as carbon sources in synthesis. This study investigated the synthesis, characterization, functional evaluation CQDs from unbleached mechanical pulp natural lignocellulosic resource. The were synthesized using one-step hydrothermal synthesis with varying temperature, time, consistency. resulting exhibit spherical shape size distribution 9.73 ± 0.82 nm lattice parameters 0.21 0.34 nm, indicating graphite core. photoluminescence spectra showed evident fluorescence characteristics, an emission peak at 435 excitation wavelength 370 nm. as-prepared chemically composed C=C C=O bonds linked hydroxyl carboxyl groups, which typically found lignocellulose-based CQDs. demonstrated antibacterial activity exceeding 99.9% against E. coli lowest concentration 0.75 mg/mL. Demonstrating its antioxidation property, DPPH radical scavenging surpassed 90% more than 40 µg/mL CQD solution.

Язык: Английский

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Modification of electrospun polyacrylonitrile nanofiber membranes with curcumin quantum dots for enhanced self-cleaning, antifouling and photocatalytic performance for water treatment

Journal of Water Process Engineering, Год журнала: 2024, Номер 60, С. 105251 - 105251

Опубликована: Апрель 1, 2024

Язык: Английский

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Carbon and boron nitride quantum dots as optical sensor probes for selective detection of toxic metals in drinking water: a quantum chemical prediction through structure- and morphology-dependent electronic and optical properties

RSC Advances, Год журнала: 2024, Номер 14(38), С. 28182 - 28200

Опубликована: Янв. 1, 2024

Toxic metal detection in drinking water using quantum dots through UV-Vis absorption spectra and fluorescence property.

Язык: Английский

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Recent developments in optical aptamer sensors for pesticide residues detectio

Applied Spectroscopy Reviews, Год журнала: 2024, Номер 59(9), С. 1147 - 1182

Опубликована: Фев. 1, 2024

Pesticide residues seriously impact food safety and environmental protection. Consequently, there is a pressing demand for the development of dependable efficient methods pesticide detection. In recent years, optical aptamer sensors have emerged as highly sensitive fast-response sensing platforms These developed rely on selectivity sensitivity nucleic acid to specifically interact with target pesticide, resulting in an observable signal response. Various such fluorescence, colorimetry, surface-enhanced Raman scattering (SERS) methods, chemiluminescence (CL) been effectively employed accurate rapid detection pesticides, encompassing range types including insecticides, fungicides, herbicides. offer several advantages quick response times, high sensitivity, user-friendly operation, enabling real-time monitoring. This paper provides comprehensive review advancements application residue assay overarching goal furnishing invaluable reference point forthcoming research realm swift

Язык: Английский

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Controlling Fluorescence Wavelength in the Synthesis of TGA-Capped CdTe Quantum Dots

Chemosensors, Год журнала: 2024, Номер 12(4), С. 70 - 70

Опубликована: Апрель 21, 2024

Quantum dots (QDs) are semiconductor materials, with a size range between 1–10 nm, showcasing unique size-dependent physical and chemical properties. Such properties have potentiated their use in areas like medical imaging biosensing. Herein, we present an open-air approach for synthesis of QDs, reducing the need controllable atmospheric conditions. Furthermore, predictive mathematical model maximum emission wavelength (λmax) control. Through straightforward microwave-based aqueous TGA-CdTe investigated influence time, temperature, Te:Cd TGA:Cd molar ratios on λmax, using chemometric experimental design approach. CdTe-QDs were characterized by UV-Vis fluorescence spectroscopies. Additionally, Fourier-Transform Infrared spectroscopy, X-ray photoelectron Transmission Electron Microscopy, Energy Dispersive conducted. Stable QDs ranging from green to red (527.6 nm 629.2 nm) obtained. A statistical analysis results revealed that time temperature most significant factors influencing λmax. After fine-tuning variables, 97.7% prediction accurately forecasted conditions synthesizing at predefined Stability tests demonstrated retained optical characteristics over month 4 °C, facilitating diverse applications.

Язык: Английский

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