Recent progress in carbon-based nanomaterials: critical review

Journal of Nanoparticle Research, Journal Year: 2024, Volume and Issue: 26(5)

Published: May 1, 2024

Language: Английский

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Shell Distribution of Vitamin K3 within Reinforced Electrospun Nanofibers for Improved Photo-Antibacterial Performance

International Journal of Molecular Sciences, Journal Year: 2024, Volume and Issue: 25(17), P. 9556 - 9556

Published: Sept. 3, 2024

Personal protective equipment (PPE) has attracted more attention since the outbreak of epidemic in 2019. Advanced nano techniques, such as electrospinning, can provide new routes for developing novel PPE. However, electrospun antibacterial PPE is not easily obtained. Fibers loaded with photosensitizers prepared using single-fluid electrospinning have a relatively low utilization rate due to influence embedding and their inadequate mechanical properties. For this study, monolithic nanofibers core–shell were compared. Monolithic F1 fibers comprising polyethylene oxide (PEO), poly(vinyl alcohol-co-ethylene) (PVA-co-PE), photo-antibacterial agent vitamin K3 (VK3) created blending process. Core–shell F2 coaxial which extensible material PEO was set core section, composite consisting PEO, PVA-co-PE, VK3 shell section. Both designed structural properties had an average diameter approximately 1.0 μm, determined scanning electron microscopy transmission microscopy. amorphously dispersed within polymeric matrices compatible manner, revealed X-ray diffraction Fourier transform infrared spectroscopy. higher tensile strength 2.917 ± 0.091 MPa, whereas longer elongation break 194.567 0.091%. Photoreaction tests showed that, adjustment, could produce 0.222 μmol/L ·OH upon illumination. slightly better performance than fibers, inhibition zones 1.361 0.012 cm 1.296 0.022 E. coli S. aureus, respectively, but less VK3. The intentional tailoring components compositions nanostructures improve process–structure–performance relationship potential sunlight-activated

Language: Английский

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Integrated High Barrier and Efficient Moisture‐Wicking Multilayer Textile for Medical and Health Protection

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 33(51)

Published: Aug. 24, 2023

Abstract Developing textiles with rapid moisture‐wicking capability is a potential and effective solution to the poor comfort of medical health‐protective clothing. However, designing protective clothing that combines safety remains crucial formidable task. Herein, fibrous membrane (MWPFM) dual‐gradient structure manufactured by electrospinning electrostatic spraying techniques proposed. Interestingly, layer small pore an extremely hydrophobic effect can block water, blood, ethanol. Additionally, textile designed in multilayer configuration wetting gradient gradient, ensuring comfort. The MWPFM exhibits excellent properties (ethanol contact angle 115°, hydrostatic pressure 14.8 kPa) (breathability 46.8 mm s −1 , water vapor transmission rate 5.9 kg m −2 d ). In addition, compared commercially available high‐density polyethylene membrane, displays distinct advantage. This work provides fresh avenue improve thermal‐moisture

Language: Английский

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Advancement of Nonwoven Fabrics in Personal Protective Equipment

Materials, Journal Year: 2023, Volume and Issue: 16(11), P. 3964 - 3964

Published: May 25, 2023

While nonwoven fabrics have existed for several decades, their usage in personal protective equipment (PPE) has been met with a rapid surge of demands, part due to the recent COVID-19 pandemic. This review aims critically examine current state PPE by exploring (i) material constituents and processing steps produce fibers bond them, (ii) how each fabric layer is integrated into textile, assembled textiles are used as PPE. Firstly, filament manufactured via dry, wet, polymer-laid fiber spinning methods. Then bonded chemical, thermal, mechanical means. Emergent processes such electrospinning centrifugal unique ultrafine nanofibers discussed. Nonwoven applications categorized filters, medical usage, garments. The role layer, its role, textile integration Finally, challenges stemming from single-use nature PPEs discussed, especially context growing concerns over sustainability. Then, emerging solutions address sustainability issues innovations explored.

Language: Английский

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Machine learning approach to evaluating impact behavior in fabric-laminated composite materials

Results in Engineering, Journal Year: 2024, Volume and Issue: 23, P. 102576 - 102576

Published: July 17, 2024

Fabric-layered composites play a crucial role in safety and surveillance applications, making it imperative to accurately predict their impact behavior. This research focuses on creating machine-learning model the behavior of fabric-stacked composites, specifically carbon Kevlar fabrics. Low-velocity tests were performed with varying parameters, energy laminate thickness information used train models properties such as force, displacement, absorbed energy. It was observed that force increased by 118.5 % carbon-laminated fibers 175.8 Kevlar-laminated fibers, while hybrid layer showed 101.4 increase upon from 16J. Displacement can affect stability layered structure; thus, similar stacking sequence is less stable than laminated structure. In terms energy, layers increase, fiber absorbs 4.8 times more structures absorb 3 at higher Furthermore, four machine learning investigate identical mixed-layered composites. The displacement predicted accuracy using polynomial regression model, achieving 80 89 accuracy, respectively. support vector approximately 96 accuracy. continuing, experimental results closely matched predictions made other utilized this study. Additionally, importance distinctive features influence performance learning-based interpreted transposed dependency plots. Various failure modes fabric also identified, providing insights enhance stacked materials.

Language: Английский

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Copper oxide nanofibers obtained by solution blow spinning as catalysts for oxygen evolution reaction

Ceramics International, Journal Year: 2024, Volume and Issue: 50(8), P. 13034 - 13045

Published: Jan. 18, 2024

Language: Английский

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2D Materials Beyond Post‐AI Era: Smart Fibers, Soft Robotics, and Single Atom Catalysts

Advanced Materials, Journal Year: 2023, Volume and Issue: 36(11)

Published: Oct. 1, 2023

Recent consecutive discoveries of various 2D materials have triggered significant scientific and technological interests owing to their exceptional material properties, originally stemming from confined geometry. Ever-expanding library can provide ideal solutions critical challenges facing in current trend the fourth industrial revolution. Moreover, chemical modification customize physical/chemical properties satisfy broad spectrum different specific requirements across diverse application areas. This review focuses on three particular emerging areas materials: smart fibers, soft robotics, single atom catalysts (SACs), which hold immense potentials for academic advancements post-artificial intelligence (AI) era. Smart fibers showcase unconventional functionalities including healthcare/environmental monitoring, energy storage/harvesting, antipathogenic protection forms wearable textiles. Soft robotics aligns with future overcome longstanding limitations hard-material based mechanics by introducing actuators sensors. SACs are widely useful storage/conversion environmental management, principally contributing low carbon footprint sustainable post-AI Significance unique values these applications highlighted, where research group has devoted efforts more than a decade.

Language: Английский

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Improved Antibacterial Properties of Polylactic Acid-Based Nanofibers Loaded with ZnO–Ag Nanoparticles through Pore Engineering

ACS Applied Materials & Interfaces, Journal Year: 2023, Volume and Issue: 15(36), P. 42920 - 42929

Published: Aug. 31, 2023

In the post-epidemic era, bio-based protective fiber materials with active functions are of utmost importance, not only to combat spread pathogens but also reduce environmental impact petroleum-based materials. Here, efficient antibacterial polylactic acid-based (PLA-based) fibers prepared by solution blow spinning and their pore structures regulated controlling ratio solvent components in solutions. The porous PLA-based exhibit efficiencies over 99% against Escherichia coli 98% Bacillus subtilis, which significantly higher than that nonporous fibers. excellent property can be attributed high porosity, allows nanoparticles released more easily from fibers, thus effectively killing pathogenic microorganisms. Moreover, structure regulation enhance mechanical Our approach regulating microstructure properties through engineering extended other polymer is suitable for polymer-based composite systems require optimal performance sufficient exposure doped

Language: Английский

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The Impact of the COVID-19 Pandemic on the Amount of Plastic Waste and Alternative Materials in the Context of the Circular Economy

Sustainability, Journal Year: 2024, Volume and Issue: 16(4), P. 1555 - 1555

Published: Feb. 12, 2024

The COVID-19 pandemic was first reported on 31 December 2019, in Wuhan. Since then, the rapid spread of virus has directly impacted various aspects people’s lives, including culture, society, education, and economy. environment also been affected, as disposal thousands tons single-use personal protective equipment resulted a significant increase waste. challenge to create environmentally friendly materials for equipment. One alternatives polypropylene is biodegradable nonwoven produced using spun-bonded technology. article discusses physical mechanical parameters, biodegradation process, distribution molar masses during weeks biodegradation. Additionally, paper presents results vitro cytotoxicity tests conducted material. Biodegradable are viable solution challenges posed by circular

Language: Английский

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Fabrication of reusable bioprotective nanofabric with passive nano-Ag/Joule thermal disinfection properties for real-time wireless fine biomotion and gesture sensing

Nano Energy, Journal Year: 2024, Volume and Issue: 124, P. 109525 - 109525

Published: March 19, 2024

Language: Английский

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