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Inhalation of carbon black nanoparticles can impair lung tissue and cause DNA damage, but the epigenetic mechanism responsible for these effects is still unclear. We investigated the role of circular RNAs in DNA damage caused by CBNPs in the lung. For 24, 48, and 72 hours, and 72 h, BALB/c mice were exposed to 8 bcg/d and 80 % bcg/d CBNPs, respectively. We found a novel circRNA that was overexpressed in the CBNP-exposed group using high-throughput sequencing and quantitative real-time PCR to identify CBNP-related circRNAs. Circ_0089282 could specifically bind to the fused in sarcoma protein and positively influence downstream DNA repair protein DNA ligase 4 through FUS.
Source link: https://europepmc.org/article/MED/36610987
Select electrocatalysts for the dopamine oxidation process were used by the synthesized C/PWA composite modified glassy carbon electrodes. DA was detected by differential pulse voltammetry and the calibration plot demonstrated linearity across a wide range of DA concentrations from 10 00b5M to 600 b5M under optimized conditions, with a detection line of 0. 1 %u00b5 million. The sensor's ability to detect DA in commercial DA injections in real time has been demonstrated.
Source link: https://europepmc.org/article/PPR/PPR592036
Kolkata is located in the eastern part of the Indo Gangetic Plain outflow region and close to the land-ocean boundary, owing to the local concentration of BC, which changes the seasonal maritime airflow from the Bay of Bengal and continental air mass from the IGP and Tibetan plateau region. When local emissions are low, the study emphasizes the importance of IGP wind inflow on the occurrence of unexpected increases in BC concentration during weekends and holidays. Enhanced atmospheric heating above the boundary layer and significant negative surface radiative forcing have been attributed to increased atmospheric circulation above the boundary layer and significant negative surface radiative forcing. On high BC days, dominant erosion of morning and night-time boundary layer height has been detected. As obtained from hourly results of ERA-5, boundary layer heights are found to be strongly influenced by high BC episode occurrences during the daytime in pre-monsoon, post-monsoon, and winter seasons.
Source link: https://europepmc.org/article/MED/36595082
Fine particles can be removed from particulate matter by minimizing back corona and particle re-entrainment. The removal of wet electrostatic precipitators' effectiveness is determined by a combination of wet electrostatic precipitators' operational parameters, particle residence times, and the amount of electrostatic energy transferred to the exhaust gas. By changing the electrical energy input to the gas stream and the particle residence time, the wet electrostatic precipitator was able to remove from 42. 7% to 97. 2% of black carbon particles and 48. 8% to 95. 9% of black carbon particles. Between particle sizes, a change in particle residence time resulted in an overall removal increase of 37 percent and revealed removal efficiency gaps of up to 24 percent. It was discovered that the best fit was achieved for particle sizes and black carbon content in this order by investigating the elimination of efficiencies of various particle sizes and black carbon content, indicating a black carbon size range in this order. In the particle range between 0. 02 and 0. 77 mm, the research indicates that a similar removal rate between black carbon and particulate matter could be obtained, and that the key aim for black carbon removal should be improved black carbon removal. Implications : The manuscript describes a small effective method for the removal of particle matter and black carbon particles from a ship's exhaust gas produced by a vessel engine's exhaust gas.
Source link: https://europepmc.org/article/MED/36107731
Although real-time personal exposure monitoring systems can gather a wealth of data regarding shifts in pollutant levels, only a few studies have identified 'peaks' in black carbon exposure utilizing high-resolution data, although real-time personal exposure monitoring systems have the ability to capture a slew of events. A better understanding of the symptoms of BC peak exposure could help us gain understanding of the health risks associated with BC. Policies that limit children's exposure during high traffic times and increased the number of vehicles using clean air technologies may reduce the incidence of peak and peak variability in children's BC exposure.
Source link: https://europepmc.org/article/MED/36596374
In the pressure ranges of 1. 2 to u201390 MPa, we investigated the effect of two fillers, u2014CB and silica 2013on the H2 permeation of EPDM polymers crosslinked with sulfur. The decrease in diffusivity in CB-filled EPDM composites is decreasing because the impermeable filler increases the tortuosity in the polymer and leads to filleru2013polymer interactions; the linear decrease in diffusivity in silica-blended EPDM composites was attributed to a rise in tortuosity. In H2-refueling stations, it is easy to find EPDM candidates with the lowest H2-permeation characteristics as seal materials to prevent gas leakage under pressure.
Source link: https://europepmc.org/article/MED/PMC9824334
We investigated the effect of two fillers-CB and silica-on the H2 permeation of EPDM polymers crosslinked with sulfur in the pressure ranges 1. 2-90 MPa. The effect of an increase in tortuosity in the EPDM composites has decreased, resulting in a decrease in diffusivity and triggers filler-polymer interactions; the linear decrease in diffusivity in silica-blended EPDM composites is attributed to an increase in tortuosity. In H2 refueling stations, it is possible to select EPDM candidates with the lowest H2 permeability characteristics as seal materials to prevent gas leakage under heavy pressure.
Source link: https://europepmc.org/article/MED/36616510
The results revealed that DBC addition enhanced the microbial reduction of Fe in ferrihydrite and increased the amount of Fe released into the liquid phase. The degradation pathways were nitrate reduction and imino hydrolysis induced by Fe reduction in ferrihydrite, according to the Fe reduction and pyrolysis temperature used in DBC production.
Source link: https://europepmc.org/article/MED/36584647
Both internal mixing and the lensing effect of non-absorbing coating could increase the global warming effect of black carbon. The coating thickness of BC contributes to the main absorption ability of light absorbing particulate matter over elemental carbon and the MAE value, which showed a strong positive correlation. The effects of chemical component coating on MAE amplification in autumn and winter were greater than those seasons. With the internal mixing index, the effects of organic matter and nitrate coatings on MAE amplification increased. The largest factor for MAE decline was a decrease in the contribution of industrial emissions and coal combustion to PM 2. 5 from 2016 to 2017.
Source link: https://europepmc.org/article/MED/36581288
Using EcoPlates u2122 and a macrogenomic approach, we investigated the effects of lead combined with lanthanum on microbial community structure, carbon metabolism, and variations in carbon source utilization in black soils using both lead and lanthanum. Pb and La contents, as well as the microbial community's configuration, all influence and influence soil carbon metabolism's response to Pb-La. Microorganisms under environmental pressure preferentially use phenolic and carboxylic acids as growth carbon sources in comparison to controls. Also, a high amount of La can reduce Pb's environmental toxicity, whereas a high concentration of La can synergistic toxicity with Pb.
Source link: https://europepmc.org/article/MED/36580779
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