A novel design of THz resonance gas sensor with advanced 2-bit encoding capabilities

Optical and Quantum Electronics, Год журнала: 2024, Номер 56(9)

Опубликована: Сен. 5, 2024

Язык: Английский

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Molecularly Imprinted Polymers and Nanocomposites—Essentials Features and Applied Versatilities

Polymer-Plastics Technology and Materials, Год журнала: 2025, Номер unknown, С. 1 - 29

Опубликована: Янв. 12, 2025

This manuscript presents a systematic overview of molecularly imprinted polymer-derived nanocomposites, discussing fundamentals, design categorization, and technological worth, according to the reported literature so far. In this concern, nanocomposites polymers have been synthesized with carbonaceous nanoparticles (graphene, carbon nanotube, fullerene) inorganic (metal/metal oxide, metal organic frameworks). Principal synthesis methods applied for consequential include efficient polymerization tactics, like free radical (bulk/emulsion), electropolymerization, sol-gel, precipitation, imprinting approaches (surface or nanoimprinting). Ensuing macromolecular assemblies nanocomposite hybrid depicted valuable characteristics, counting low price, high surface area, functionalities, microstructural variations, structural stability, facile synthesis, desirable porosity, sensitivity toward other molecules depending upon their precision choice processing technique. Subsequently, worth mentioning combinations nanocarbon/inorganic showed scientific potential water remediation (adsorbent materials), gas/electrochemical sensors, drug delivery, biosensing fields. Although plenty reports revealed design, processing, practical aspects polymers; nonetheless, we note, field needs much future attention precise designs, perfect polymer-nanoparticle assemblies, well-defined techniques/parameters commercial-scale utilizations.

Язык: Английский

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Advancements and Prospects of Molecularly Imprinted Polymers as Chemical Sensors: A Comprehensive Review

Talanta, Год журнала: 2025, Номер 287, С. 127592 - 127592

Опубликована: Янв. 14, 2025

Язык: Английский

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A Dual-Mode Sensor Based on Surface Molecularly Imprinted Metal-Organic Frameworks for the Highly Accurate and Selective Detection of Tetracycline

Sensors and Actuators B Chemical, Год журнала: 2025, Номер unknown, С. 137445 - 137445

Опубликована: Фев. 1, 2025

Язык: Английский

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Dual-Functional Antenna Sensor for Highly Sensitive and Selective Detection of Isopropanol Gas Using Optimized Molecularly Imprinted Polymers

ACS Sensors, Год журнала: 2025, Номер unknown

Опубликована: Фев. 20, 2025

Accurate monitoring of isopropanol (IPA) levels is crucial for safety in industrial and laboratory settings, as high concentrations can lead to serious health issues. In this study, we present, the first time, a dual-functional antenna sensor capable high-performance IPA gas detection with concentration estimation uninterrupted wireless communication, using optimized molecularly imprinted polymer (MIP)/multiwalled carbon nanotube (MWCNT)-based sensing materials. Comprehensive characterization these materials confirms successful formation homogeneity composites. Furthermore, electrical gas-sensing properties were evaluated functionalized interdigitated electrode (IDE)-based structures, sensitivity, evaluate These IDE which acted impedance-varying components during operation, coupled single-port monopole develop highly sensitive selective while maintaining communication services. The results showed that fabricated platform exhibits strong selectivity, stability at room temperature, effectively distinguishing it from other interference gases. addition, same material, demonstrated antenna-based exhibited higher sensitivity than chemiresistive sensor, achieving limit (18.8 ppm) below thresholds IPA. Moreover, antenna's radiation pattern capabilities remained unaffected, ensuring functionality. Detailed optimization process mechanism novel MIP-based supported by both structural characterizations could serve milestone future studies advancement next-generation sensors.

Язык: Английский

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Nature-Inspired Engineering Separation Materials and Devices

ACS Nano, Год журнала: 2025, Номер unknown

Опубликована: Март 18, 2025

Separation is a fundamental process in natural living systems. Their separation capabilities have inspired the design of various materials and devices. Despite some progress having been made, comprehensive overview still lacking. In this Perspective, we first review development technologies. We then summarize typical systems exhibiting superior from compositions microstructures to mechanisms. Next, highlight key advancements nature-inspired integrated Finally, propose future research directions opportunities, emphasizing importance physical chemical internal external stimulus regulation. These devices show great potential biomedicine, environmental remediation, energy conversion, food safety, analysis testing.

Язык: Английский

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A Fluorescent Probe for Convenient Visual Detection of Glyphosate Contamination in Water, Soil, and Vegetable Samples

Chemistry - An Asian Journal, Год журнала: 2025, Номер unknown

Опубликована: Апрель 28, 2025

Abstract Glyphosate, a widely used herbicide, has raised significant environmental and health concerns due to its persistence in food matrices. Accurate sensitive detection methods are essential for monitoring glyphosate contamination ensuring safety. In this study, fluorescent probe (DSG‐Cu[II]) been developed the selective of glyphosate. The fluorophore making is synthesized through reaction between dansyl chloride glycine, forming (DSG) capable binding copper ions (Cu[II]). resulting DSG‐Cu[II] complex functions via an “off‐on” fluorescence mechanism, wherein competitively displaces Cu[II], restoring fluorescence. This approach demonstrates high sensitivity rapid response, with limit 35 nM response time 30 s. Furthermore, was successfully applied real sample analysis, confirming practical applicability. Additionally, test strips incorporating enabled visual detection, highlighting potential on‐site monitoring. study presents efficient, selective, fluorescence‐based method contributing improved safety

Язык: Английский

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Polymeric sensors for blood analysis: current and future scope of research

Polymer International, Год журнала: 2025, Номер unknown

Опубликована: Апрель 28, 2025

Abstract This review explores the advancements in polymer‐based sensors for blood analysis, emphasizing online detection of key components such as uric acid, creatinine, urea, bilirubin, cholesterol, total proteins, amino acids and hormones. It categorizes polymer into electrochemical, optical molecularly imprinted polymers, providing insights their working mechanisms advantages biomarker identification. Recent innovations are highlighted to evaluate current state sensor technology terms selectivity, sensitivity real‐time monitoring capabilities. Challenges stability issues, biofouling compliance also addressed. The underscores transformative potential these diagnostics, role enhancing patient care through convenient point‐of‐care healthcare testing. © 2025 Society Chemical Industry.

Язык: Английский

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Artificial olfactory systems: Mimicking the sense of smell

Comprehensive analytical chemistry, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

Язык: Английский

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Nanofibrous Conductive Sensor for Limonene: One-Step Synthesis via Electrospinning and Molecular Imprinting

Nanomaterials, Год журнала: 2024, Номер 14(13), С. 1123 - 1123

Опубликована: Июнь 29, 2024

Detecting volatile organic compounds (VOCs) emitted from different plant species and their organs can provide valuable information about health environmental factors that affect them. For example, limonene emission be a biomarker to monitor detect stress. Traditional methods for VOC detection encounter challenges, prompting the proposal of novel approaches. In this study, we proposed integrating electrospinning, molecular imprinting, conductive nanofibers fabricate sensors. detail, polyvinylpyrrolidone (PVP) polyacrylic acid (PAA) served here as fiber cavity formers, respectively, with multiwalled carbon nanotubes (MWCNT) enhancing conductivity. We developed one-step monolithic molecularly imprinted fibers, where S(−)-limonene was target molecule, using an electrospinning technique. The functional cavities were fixed UV curing method, followed by molecule washing. This procedure enabled creation recognition sites within nanofiber matrix, sensor performance streamlining manufacturing. Humidity crucial working, optimal conditions at 50% RH. sensors rapidly responded S(−)-limonene, reaching plateau 200 s. Enhancing density improved performance, resulting in lower limit (LOD) 137 ppb. However, excessive decreased accessibility active sites, thus reducing sensitivity. Remarkably, thinnest mat on fibrous created provided highest selectivity (Selectivity Index: 72%) compared other VOCs, such EtOH (used solvent development), aromatic (toluene), two monoterpenes (α-pinene linalool) similar structures. These findings underscored potential integrated approach selective applications precision agriculture monitoring.

Язык: Английский

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