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Carbon Fiber - Europe PMC

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Last Updated: 10 January 2023

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Electrodeposition of dopamine onto carbon fiber microelectrodes to enhance the detection of Cu 2+ via fast-scan cyclic voltammetry.

Neurodegenerative diseases' etiology is unclear; however, studies have shown that heavy metals, such as copper, play a significant role in neurotoxicity, hence adversely contributing to the onset of these disorders. Analysis is mainly carried out in blood, urine, or postmortem tissues, limiting the transfer of acquired knowledge to living systems due to the limitations of classical metal detection devices' ability to obtain accurate speciation results of ultra-low concentrations of heavy metals in the brain. To detect Cu 2+ in modified tris buffer, we developed a biocompatible, ultra-fast, low-cost, and robust surface-modified electrode with carbon fibers by electrodepositing dopamine via fast-scan cyclic voltammetry in this research. We investigated the surface morphology of our newly introduced sensors using high-resolution images obtained by atomic force microscopy under various deposition conditions. The detection limit for our surface-modified sensor was 0. 01 nA/u00b5M, and the sensitivity was 11. 28 nA/u00b5M.

Source link: https://europepmc.org/article/MED/36595035


Multiple Pulse Amperometry-An Antifouling Approach for Nitrite Determination Using Carbon Fiber Microelectrodes.

Nitrite is a common pollutant in modern life. By pulsed amperometry, we herein describe a procedure to crack these limitations on carbon fiber microelectrode microelectrodes. According to RSD estimates, they were less than 0. 55 percent and 7%. Fortified with nitrite, tap water and synthetic inorganic saliva samples were treated with nitrite, and the sensor findings were in good agreement with the amount added.

Source link: https://europepmc.org/article/MED/36615580


Pore-Rich Cellulose-Derived Carbon Fiber@Graphene Core-Shell Composites for Electromagnetic Interference Shielding

The study of electromagnetic shielding materials has long been discussed due to severe electromagnetic pollution posed by widespread use of radio frequency equipment. Optimum PNCFs are created by KOH activation, and the coupling of the pore-rich PNCFs and the graphene requires a plasma-enhanced chemical vapor deposition technique. The conductivity of the pore-rich PNCFs@graphene core-shell composite reaches 4. 97 S cmu22121, the highest value in recent literature, exceeds that of many biobased EMI shielding materials.

Source link: https://europepmc.org/article/MED/PMC9824699


Pore-Rich Cellulose-Derived Carbon Fiber@Graphene Core-Shell Composites for Electromagnetic Interference Shielding.

The study of electromagnetic interference shielding materials has long been a long-running topic due to the widespread use of radio frequency equipment, which has resulted in significant electromagnetic pollution. Carbon fiber and graphene composites have a great deal as EMI shielding materials due to their unique microstructure and electrical conductivity. KOH activation produces the pore-rich PNCFs, and the synthesis between the pore-rich PNCFs and the graphene depends on a plasma-enhanced chemical vapor deposition technique.

Source link: https://europepmc.org/article/MED/36616083


An online derivatization strategy targeting carbon-carbon double bonds by laser-ablation carbon fiber ionization mass spectrometry imaging: Unraveling the spatial characteristic in mountain-cultivated ginseng and garden-cultivated ginseng with different ages.

These metabolites' comprehensive analysis can help determine the nutritional value of ginseng. A high-throughput and high-selectivity online derivatization mass spectrometry imaging program aimed at CC was developed herein. CC acts as a widely distributed chemical group that links various forms of metabolites. [d 0 ]/[d d 10]-Bis iodine tetrafluoroboride reagent was selected for the derivation of CC, whose detection sensitivity increased about 3 magnitudes after derivatization. The correlation heatmap results found that metabolites in mountain-cultivated ginseng had higher correlation than those in garden-cultivated ginseng.

Source link: https://europepmc.org/article/MED/36608558


Recycling Carbon Fiber from Carbon Fiber-Reinforced Polymer and Its Reuse in Photocatalysis: A Review

This report summarized the most recent progress in CFRP waste recycling technologies, discussed their advantages and disadvantages, influence parameters, and potential environmental impacts, as well as potential effects on rCFs' mechanical and surface chemical properties. This paper also discussed the possibility and potential of recycling recovered fibers for producing recyclable photocatalytic aids, which may be a new means of reuse in environmental purification that has long been ignored by researchers and decision-makers in the field of CFs.

Source link: https://europepmc.org/article/MED/PMC9824332


Recycling Carbon Fiber from Carbon Fiber-Reinforced Polymer and Its Reuse in Photocatalysis: A Review.

It is emerging to develop an effective and sustainable strategy to recover carbon fibers from carbon fiber-reinforced polymer wastes and reuse them in high-value applications, owing to a variety of environmental and economic factors. This paper also highlighted the possibility and potential of reusing recovered fibers for the production of recyclable photocatalytic compounds, which may be a new way to reuse in environmental purification that has long been ignored by scholars and decision-makers in the field of CFs.

Source link: https://europepmc.org/article/MED/36616520


An Investigation of Mechanical Properties of Recycled Carbon Fiber Reinforced Ultra-High-Performance Concrete.

Ultra-high performance concrete with excellent mechanical properties boosts the concrete's strength and tensile strength, while steel fibers carry the tensile stress within the concrete, which increase the concrete's strength and durability, where steel fibers carry the tensile stress within the concrete, similar to traditional rebar reinforcement and provide ductility. Virgin carbon fiber reinforced concrete mix designs remain a major barrier to entry into the high-volume production of fiber-reinforced concrete mix styles. For the first time in this study, the use of recycled carbon fiber to produce ultra-performance concrete is shown for the first time. A mixed construction made up of recycled carbon fiber and ultra-high-performance concrete was tested for mechanical stability and comparison to an aerospace-grade and low-cost commercial carbon fiber with the same mix pattern. This research investigates the compression, tension, and elastic characteristics of recycled carbon fiber reinforced concrete considering the concrete's microstructure caused by fiber dispersion.

Source link: https://europepmc.org/article/MED/36614652


Removal of Cd 2+ from wastewater to form a three-dimensional fiber network using Si-Mg doped industrial lignin-based carbon materials.

For removal Cd 2+ from aqueous solutions, SiMg doped industrial lignin-based carbon samples were prepared by water bath silicification and MgCl 2 activation in this report. SLCs had high Cd 2+ removal capacity within pH 3-7, according to the adsorption experiment, and the adsorption method demonstrated the degradation process as a physicochemically complicated process. Cd 2+ adsorption in the SLC was 665. 35 mg/g, and the contributing factors to the removal of Cd 2+ were as follows: ion exchange > Cd 2+ precipitation > oxygen-containing functional group complexation -> Cd 2+ interactions.

Source link: https://europepmc.org/article/MED/36587637


Development of hybrid composite by integrating functionalized multi-walled carbon nanotubes (f-MWCNTs) with glass fiber reinforced polyester composite.

The new research explores the manufacture of a hybrid glass fiber reinforced polyester resin composite. Functionalized carbon nanotubes with glass fiber are embedded in the composite, with polyester resin as a substrate. The hand lay-up technique was used to create GFRPs samples in the form of rectangular sheets. With 77% increase and 77% respectively, as compared to the control sample, the % f-MWCNTs displayed the highest tensile strength and impact energy of 79 MPa, with 31. 6 percent increase and 1. 7 Nm with 77% increase. The composite strength increased from 40 MPa to 128 MPa when it was initially deposition of extra 10 layers, but a decrease in strength to 100 MPa was due to a poor interaction between the polyester resin and GF. However, the agglomeration of these nanoparticles and void formation in the composite led to a decline in the kinetic properties of developed composite composites such as compressive strength and void formation in the composite, while increasing the number of f-MWCNTs degraded the mechanical characteristics of the composite's ductile strength due to the agglomeration of these nanoparticles and void formation in the composite.

Source link: https://europepmc.org/article/MED/36580482

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions