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Carbon Metal - Europe PMC

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Last Updated: 04 September 2022

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Carbon monoxide-releasing molecule-401, a water-soluble manganese-based metal carbonyl, suppresses Prevotella intermedia lipopolysaccharide-induced production of nitric oxide in murine macrophages.

The aim of this research was to investigate the impact of CORM-401 on murine macrophage cells that were stimulated with lipopolysaccharide derived from Prevotella intermedia, a pathogen associated with periodontal disease. NO. Culture supernatants were tested for NO. BORN-401 led to apparent reduction of NO production in RAW264. 7 cells stimulated with P, with decreased mRNA and protein levels. Both the HO-1 gene and its protein were expressed in LPS-activated cells in CORM-401, and therapy with the HO-1 inhibitor significantly reduced the attenuating effect of CORM-401 against LPS-induced generation of NO. By CORM-401, Iu03baB-u03b1 destruction and nuclear relocation of NF-tu03baB's p50 subunit induced by LPS were dramatically reduced. In addition, CORM-401 significantly reduced DNA binding of p65 and p50, which was induced by LPS. Conclusions The modulation of host inflammatory response by CORM-401 may be of assistance in the treatment of periodontal disease.

Source link: https://europepmc.org/article/MED/36053007


Hypercrosslinked polymer-mediated fabrication of binary metal phosphide decorated spherical carbon as an efficient and durable bifunctional electrocatalyst for rechargeable Zn-air batteries.

Long-life rechargeable Zn-air batteries need bifunctional oxygen catalysts with good catalytic capability and long-life toward both oxygen reduction and oxygen evolution reactions. The aqueous Zn-air battery manufactured with FeCoP/NPC has a high specific capacity and peak power density, with high specific capacity and peak power density. In addition, a portable solid-state Zn-air battery made from FeCoP/NPC has a power density of 74 mW cm -2 and consistently works for 90 h at 2 mA cm -2.

Source link: https://europepmc.org/article/MED/35975754


Dual-emission carbon dots for sensitive fluorescence detection of metal ions and ethanol in water.

Carbon dots have been widely used in biomedical fields due to their superior optical stability, high sensitivity, and high selectivity to specific substances. However, there are no studies on trace detection of the ethanol content in a squeous solution using CDs, although there are some reviews on trace detection of the ethanol content in aqueous solution using CDs. A multifunctional fluorescent nanoprobe based on the red CDs with high-sensitivity detection of Fe 3+ and Cu 2+ can be successfully constructed after investigating the structure and properties of the red CDs. Fe 3+ and Cu 2+ detection limits can reach 0. 024 u03bcM and 0. 036 bcM, respectively, which is much higher than that found in previous studies. Meanwhile, in view of the specific solvent content of their PL, the red CDs are also suitable for trace determination of the ethanol content in a diluted solution.

Source link: https://europepmc.org/article/MED/36043438


Pd-Nanoparticles Embedded Metal-Organic Framework-Derived Hierarchical Porous Carbon Nanosheets as Efficient Electrocatalysts for Carbon Monoxide Oxidation in Different Electrolytes.

Triethyleneamine aids in the formation of Pd nanoparticles/Co-N x in porous carbon nanosheets with the assistance of ethylene glycol and form a multimodal pore size, and promotes pore size formation during microwave irradiation. Pd/ZIF-67/C's electrocatalytic capability and stability were outstripped by times in 0. 1 M KOH, 0. 1 M KOH, and 0. 1 M NaHCO 3 respectively, owing to Pd's conductivity, Co-N x active sites and delicate porous structures of ZIF-67, respectively, as the electrocatalytic characteristics of Pd/C and Pt/C catalysts outperformed those of commercial Pd/C.

Source link: https://europepmc.org/article/MED/36040806


REVIEW Recent Advances in the Carbon Dioxide Adsorption, Activation and Hydrogenation to Methanol using Transition Metal Carbides.

A novel option in the CO 2 mitigation scheme is a metal-based catalytic CO 2 transformations into commodity chemicals. Among these changes, selective hydrogenation of CO 2 to methanol is the most promising option that not only fulfills the energy needs but also rebalances the carbon cycle. Because the production of many intermediates determines the selectivity of the product, the investigation of adsorption, binding, and activation of CO 2 molecules on the surface of heterogeneous catalysts is extremely important. Using computational experiments, we review the catalytic properties of TMCs, synthetic methods, CO 2 binding methods, mechanistic studies, the effects of dopant on CO 2 adsorption, activation, and carbon/metal ratio in the CO 2 hydrogenation reaction to methanol. This paper also provides an outline of the challenges and opportunities for the design of new TMCs in CO 2 hydrogenation reactions.

Source link: https://europepmc.org/article/MED/36036640


Cyclic Extrusion Synthesis of Mesoporous Carbon-Supported Metal Catalysts for Selective Hydrogenation

The mesoporous carbon-supported metal catalysts are important components in heterogeneous catalysis. The as-produced mesoporous nickel exhibited high surface area, narrow pore size distribution, and excellent results in selective hydrogenation of nitrobenzene to aniline. In addition, the fluid property of catalyst precursors and the geometry of the twin-screw extrusion channel were investigated, and the essence of this cyclic extrusion process is also discussed.

Source link: https://europepmc.org/article/PPR/PPR537196


Ultralow-Power and Radiation-Tolerant Complementary Metal-Oxide-Semiconductor Electronics Utilizing Enhancement-Mode Carbon Nanotube Transistors on Paper Substrates.

Through a printing-based process, enhancement-mode carbon nanotube complementary metal-oxide-semiconductor thin-film transistors are manufactured on paper substrates. Profitably from the CMOS circuit style and E-mode transistors, the fabricated CMOS inverters produce high voltage gains and noise margins, and rail-to-rail operations go from bench to rail operated at a V DD of less than 0. 05 pW, with historic low power dissipation as low as 0. 0124 pW. Emerging energy-saving and environmentally friendly ICs in demanding environmental applications are popular for developing power consumption and outstanding radiation tolerance in paper-based and easy-to-process CNT electronics.

Source link: https://europepmc.org/article/MED/36030367


A new metal-free benzorhodol-based photoluminophore selective for carbon monoxide detection applicable in both in vitro and in vivo bioimaging.

This probe reveals selective off-on fluorogenic activity of CORM-3 both in vitro and in vivo, with a limit of detection as low as 64. 29 nM observed. This probe has also been used to find intracellular CO in MCF7 cells and to track CO in mice by collecting bioimages with the support of confocal microscopy, demonstrating that DEB-CO is a highly savvy probe for this purpose.

Source link: https://europepmc.org/article/MED/35938936


Enhanced carbon dioxide biomethanation with hydrogen using anaerobic granular sludge and metal-organic frameworks: Microbial community response and energy metabolism analysis.

MOFs' results showed that they significantly improved the CO 2 biomethanation performance, particularly in the AD reactors using a concentration of 1. 0 g/L MOFs. There were 3. 28 times and 3. 41 times increases in the number of metabolic enzymes related to methanogenesis as a result of CO 2 reduction with hydrogen and dark hydrogen oxidation, respectively. An increasing number of all genes that code the main enzymes that are used in methane metabolism has existed. However, functional genes involved in nitrate reduction in nitrate reduction were blocked; however, functional genes involved in nitrate reduction were regulated.

Source link: https://europepmc.org/article/MED/36029983


Synthesis and adsorption performance of three-dimensional gels assembled by carbon nanomaterials for heavy metal removal from water: A review.

As the key building units, this paper focuses on the removal of heavy metals from water by three-dimensional gels with carbon nanomaterials. Composite CNAGs made from carbon nanomaterials with polymers or other engineered nanoparticles are the most effective adsorbents for heavy metal removal from water, according to these reports. At the end of the study, current challenges and future research directions that are essential to the use of CNAGs in the removal of heavy metals from contaminated water are discussed.

Source link: https://europepmc.org/article/MED/36028029

* 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