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Carbon Monoxide - DOAJ

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Last Updated: 04 September 2022

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Highly Sensitive Carbon Monoxide Sensor Element with Wide-Range Humidity Resistance by Loading Pd Nanoparticles on SnO 2 Surface

We focused on the Pd loading technique on SnO 2 nanoparticles and the thickness of the sensing layer to produce a highly accurate carbon monoxide sensor with a wide variety of humidity tolerances. Despite the fact that the Pd loading amount of SI-Pd/SnO 2 was slightly higher than that of CP-Pd/SnO 2 was marginally larger than that of CP-Pd/SnO 2 in a humid atmosphere and the resistance against humidity change using CP-Pd/SnO 2 was slightly greater than that of CP-Pd/SnO 2 in a humid atmosphere and the onset of humidity change using CP-Pd/SnO 2 was marginally higher than that the Pd loading amount of SI-Pd/SnO 2 was marginally/SnO 2 in CP-SnO 2 compared to that of versus that of CP-Pd/SnO 2 compared to that CP-Pd/SnO2 CP-SnO 2 CP-SnO 2 CP-Pd/SnO 2 CP-SnO 2 CP-SnO 2 CP-SnO 2 CP-SnO2 CP-SnO 2 CP-SnO The surface Pd's overall configuration, which includes size, dispersity, and oxidation state, as well as the sensor fabrication, which is, the thickness of the sensing layer, makes the sensor assembly a high-performance semiconductor-type CO gas sensor with a wide variety of humidity resistance.

Source link: https://doi.org/10.3390/s22082934


High-Sensitivity Troponin I and Creatinine Kinase-Myocardial Band in Screening for Myocardial Injury in Patients with Carbon Monoxide Poisoning

Chronic carbon monoxide poisoning in myocardial disorder is common and is associated with poor outcomes. 905 consecutive adult patients in the CO poisoning registry from February 2009 to December 2019 were included in this single-center, retrospective cohort study. Initial and peak hsTnI and CK-MB levels, as well as initial BNP levels, were significantly higher in patients with cardiomyopathy than those without cardiomyopathy, although AUCs were higher for hsTnI and CK-MB than for BNP. Patients at high risk of CO-induced cardiomyopathy can be identified by elevated hsTnI or CK-MB levels on admission, and they can be a screening device for CO poisoning.

Source link: https://doi.org/10.3390/diagnostics10040242


A Wireless and Batteryless Intelligent Carbon Monoxide Sensor

A common household tragedy in Taiwan is carbon monoxide poisoning from natural gas water heaters. For increasing the efficiency of operating natural gas water heaters, we recommend a wireless and batteryless intelligent CO sensor. The COSWOB's power consumption is only 13 mW, and a micro-hydropower generator supplies electricity to a CO sensor without battery. The COSWOB monitors the CO content in ambient conditions surrounding natural gas water heaters and converts it to an intelligent gateway.

Source link: https://doi.org/10.3390/s16101568


A Sensitive Carbon Monoxide Sensor Based on Photoacoustic Spectroscopy with a 2.3 μm Mid-Infrared High-Power Laser and Enhanced Gas Absorption

To spark enthusiasm, the light source was a distributed feedback, continuous wave diode laser with a high output capacity of 8 mW. By using a right-angle prism reflecting the laser beam, optical absorption increased two times. Water vapor was added to the PAS sensor system to raise the vibrationalu2212translational relaxation rate of the CO molecule, resulting in an 8% signal increase compared to that using a dry CO/N 2 gas mixture. The amplitude of the 2f signal increased by 1. 52-fold in comparison to the one with only one time absorption. At 1 s integration time, a minimum detection threshold for CO detection of 9. 8 ppm was reached. When a laser with a higher output capacity and increasing optical absorption times is used, the detection results of such a PAS-based CO sensor can be even enhanced.

Source link: https://doi.org/10.3390/s19143202


Carbon Monoxide Diffusing Capacity (DL CO ) Correlates with CT Morphology after Chemo-Radio-Immunotherapy for Non-Small Cell Lung Cancer Stage III

Introduction: Curatively planned chemo-immunotherapy for non-small cell lung cancer stage III can result in post-therapeutic pulmonary function impairment. In follow-up CTs, we hypothesized that the decrease in global PF coincides with an increase in tissue density. Methods: Eighty-five patients with NSCLC III were included in the study. Durvalumab was used for one year in 63/85 patients. Three months and six months after the completion of radiotherapy, and compared to baseline, pneumonia function tests were performed. PFTs and differential volumes were found in the mid-dose range, with specific ties involving PFTs and differential volumes being found, particularly in the volume of the lungs receiving between 65% and 45% of the dose recommended and DL CO. Conclusions: The new report found a strong correlation between DL CO and CT morphology changes in the mid-dose range, which shows the value of routinely using PFTs in the context of a curative therapy strategy.

Source link: https://doi.org/10.3390/diagnostics12051027


Cerebral White Matter Lesions on Diffusion-Weighted Images and Delayed Neurological Sequelae after Carbon Monoxide Poisoning: A Prospective Observational Study

This research is designed to determine whether acute brain lesions identified by diffusion-weighted magnetic resonance imaging following acute CO poisoning are related to DNS development. Methods: This prospective review was conducted on patients with CO poisoning treated at a university hospital in Bucheon, Korea. Result: In 49 patients and DNS, acute brain lesions on MRI were found in 49 patients and DNS occurred in 30 patients out of 154 patients enrolled in the final study. According to a logistic regression report, lower Glasgow coma scale score and longer exposure time were correlated with DNS, and the presence of ABLM in white matter was strongly related to DNS, although DNS was not correlated with DNS. Conclusion: The presence of ABLM in white matter was highly correlated to the occurrence of DNS. Patients with CO poisoning may be able to diagnose patients with CO poisoning early detection of DNS by MRI can be helpful in diagnosing patients with CO poisoning early.

Source link: https://doi.org/10.3390/diagnostics10090698


Ultra-High Sensitivity Zinc Oxide Nanocombs for On-Chip Room Temperature Carbon Monoxide Sensing

We present an on-chip gas sensor based on novel zinc oxide nanocombs for carbon monoxide sensing in this paper. The concept of a low-cost complementary-metal-oxide-semiconductor microsensor capable of on-chip gas detection and processing is possible with ZnO gas sensing nanocoms fully integrated on a single silicon chip. The latest ZnO nanocombs feature a much wider detection area and ultra-high sensitivity even at the room temperature, in comparison to all previous designs. In terms of acceptable operating temperature, this results in not only great power savings, but also complete compatibility between the gas sensor and the on-chip circuitry.

Source link: https://doi.org/10.3390/s150408919


Cobalt Oxide Nanosheet and CNT Micro Carbon Monoxide Sensor Integrated with Readout Circuit on Chip

The research includes a micro carbon monoxide sensor embedded with a readout circuit-on-a-chip manufactured by the commercial 0. 35 bcm complementary metal oxide semiconductor process and a post-process. The sensor's sensing film is a composite cobalt oxide nanosheet and carbon nanotube film made by a precipitation-oxidation process. To convert the sensor resistance into the voltage output, the sensor resistance is converted into voltage output by the readout circuit. Experimental results show that the sensor's sensitivity is about 0. 19 mv/ppm, and that the response and recovery times for 200 ppm CO are 23 s and 34 s respectively, according to experimental findings.

Source link: https://doi.org/10.3390/s100301753


Association between Glasgow Coma Scale in Early Carbon Monoxide Poisoning and Development of Delayed Neurological Sequelae: A Meta-Analysis

Since acute carbon monoxide poisoning, a large number of people are suffering delayed neurologic sequelae. The Glasgow Coma Scale can be used to predict delayed neurologic sequelae appearance safely and without any constraints. Using a meta-analysis, we examined the relationship between a low GCS score discovered in cases of early CO poisoning and delayed neurologic sequelae development. We searched MEDLINE, EMBASE, and the Cochrane Library for studies on GCS as a predictor of delayed neurologic sequelae in patients with CO poisoning in June 2021. Patients with acute CO poisoning were shown to have a significant impact and moderate heterogeneity in the overall pooled odds ratio of delayed neurologic sequelae development, with those with a low GCS score having a significant difference and moderate heterogeneity. The occurrence of delayed neurologic sequelae is correlated with an initial low GCS reading in patients with early CO poisoning.

Source link: https://doi.org/10.3390/jpm12040635


Analysis of Energy Consumption of the Reduction of Fe 2 O 3 by Hydrogen and Carbon Monoxide Mixtures

Energy consumption is directly related to the energy supply and production costs of gas-based direct reduction ironmaking, which is an efficient way to minimize iron making's energy use. According to the enthalpy overhaul, a simplified energy consumption model of a gas-based direct reduction ironmaking process was introduced, and the energy consumption per mole of metallic iron produced was determined in detail, according to the enthalpy process. The following conclusions were drawn: Hydrogen or carbon monoxide's use remained unchanged at the time when the reduction reaction occurred, although the increase in the number of reduction gas or the rise in the hydrogen concentration of initial gas remained unchanged.

Source link: https://doi.org/10.3390/en13081986

* 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