Effect of iron-based nanomaterials on organic carbon dynamics and greenhouse gas emissions during composting process.

Iron-based nanomaterials as effective additives can enhance the quality and safety of compost. However, their influence on organic carbon fractions changes and greenhouse gas emissions during composting remains unclear. This study demonstrated that iron-based nanomaterials facilitate the conversion of light organic carbon fraction into heavy organic carbon fraction, with the iron-based nanomaterials group showing a significantly higher heavy organic carbon fraction content (41.

Near-Electrode Concentration Gradients of Bicarbonate and pH within Porous Gas Diffusion Electrode for Optimized Selective CO Electroreduction to C Products.

With high current density, the intense near-electrode CO reduction reaction (CORR) will cause the concentration gradients of bicarbonate (HCO) and hydroxyl (OH) ions, which affect the selectivity of high-value C products of the CORR. In this work, we simulated the near-electrode concentration gradients of electrolyte species with different porous Cu-based CLs (catalyst layers) of GDE (gas diffusion electrode) by COMSOL Multiphysics. The higher porosity CL exhibits a better buffer ability of local alkalinity while ensuring a sufficient supply of H and local CO concentration.

Genetic variation in a heat shock transcription factor modulates cold tolerance in maize.

Understanding how maize (Zea mays) responds to cold stress is crucial for facilitating breeding programs of cold-tolerant varieties. Despite extensive utilization of the genome-wide association study (GWAS) approach for exploring favorable natural alleles associated with maize cold tolerance, few studies have successfully identified candidate genes that contribute to maize cold tolerance. In this study, we used a diverse panel of inbred maize lines collected from different germplasm sources to perform a GWAS on variations in the relative injured area of maize true leaves during cold stress-a trait very closely correlated with maize cold tolerance.

Ca-independent ZmCPK2 is inhibited by Ca-dependent ZmCPK17 during drought response in maize.

Calcium oscillations are induced by different stresses. Calcium-dependent protein kinases (CDPKs/CPKs) are one major group of the plant calcium decoders that are involved in various processes including drought response. Some CPKs are calcium-independent.

Resource utilization of wastepaper and bentonite: Cu(II) removal in the aqueous environment.

Contamination of heavy metals has always been a pressing concern. The dry-wet alternately treated carboxymethylcellulose bentonite (DW-CB) was successfully prepared by intercalating bentonite (BT) with carboxymethyl cellulose (CMC) obtained by solvent processes using enzymatically digested wastepaper as cellulosic raw material, and the adsorption capacity of Cu on DW-CB in aqueous solution was investigated. A 98.

Synergistic effects of Fe-based nanomaterial catalyst on humic substances formation and microplastics mitigation during sewage sludge composting.

In this study, a novel Fe-based nanomaterial catalyst (Fe/FeS) was synthesized via a self-heating process and employed to explore its impact on the formation of humic substances and the mitigation of microplastics. The results reveal that Fe/FeS exhibited a significant increase in humic acid content (71.01 mg kg).

Accurate assessment of electrocatalytic carbon dioxide reduction products at industrial-level current density.

During the electrocatalytic CO reduction reaction, the faradaic efficiency of products seriously deviates from 100% due to the misjudgment of outlet flow, especially at industrial-level large current density. In this work, several modified equations and internal standard methods are recommended to calibrate the thermal mass flowmeter and establish benchmarks for CO reduction performance assessment.

Enhanced biofuel production by co-pyrolysis of distiller's grains and waste plastics: A quantitative appraisal of kinetic behaviors and product characteristics.

Pyrolysis of biomass feedstocks can produce valuable biofuel, however, the final products may present excessive corrosion and poor stability due to the lack of hydrogen content. Co-pyrolysis with hydrogen-rich substances such as waste plastics may compensate for these shortcomings. In this study, the co-pyrolysis of a common biomass, i.

Electrocatalytic CO Reduction to C Products in Flow Cells.

Electrocatalytic CO reduction into value-added fuels and chemicals by renewable electric energy is one of the important strategies to address global energy shortage and carbon emission. Though the classical H-type electrolytic cell can quickly screen high-efficiency catalysts, the low current density and limited CO mass transfer process essentially impede its industrial applications. The electrolytic cells based on electrolyte flow system (flow cells) have shown great potential for industrial devices, due to higher current density, improved local CO concentration, and better mass transfer efficiency.

Breaking K Concentration Limit on Cu Nanoneedles for Acidic Electrocatalytic CO Reduction to Multi-Carbon Products.

Electrocatalytic CO reduction reaction (CO RR) to multi-carbon products (C ) in acidic electrolyte is one of the most advanced routes for tackling our current climate and energy crisis. However, the competing hydrogen evolution reaction (HER) and the poor selectivity towards the valuable C products are the major obstacles for the upscaling of these technologies. High local potassium ions (K ) concentration at the cathode's surface can inhibit proton-diffusion and accelerate the desirable carbon-carbon (C-C) coupling process.

Combining Protein and Organelle Engineering for Linalool Overproduction in .

Linalool, a plant-derived high-value monoterpene, is widely used in the perfume, cosmetic, and pharmaceutical industries. Recently, engineering microbes to produce linalool has become an attractive alternative to plant extraction or chemical synthesis approaches. However, the low catalytic activity of linalool synthase and the shortage of precursor pools have been considered as two key factors for low yields of linalool.

Identifying yield-related genes in maize based on ear trait plasticity.

Background: Phenotypic plasticity is defined as the phenotypic variation of a trait when an organism is exposed to different environments, and it is closely related to genotype. Exploring the genetic basis behind the phenotypic plasticity of ear traits in maize is critical to achieve climate-stable yields, particularly given the unpredictable effects of climate change. Performing genetic field studies in maize requires development of a fast, reliable, and automated system for phenotyping large numbers of samples.

Exploring the mechanisms of humic acid mediated degradation of polystyrene microplastics under ultraviolet light conditions.

Microplastics (MPs) are emerging pollutants that interact extensively with dissolved organic matter (DOM) and this influences the environmental behavior of MPs in aqueous ecosystems. However, the effect of DOM on the photodegradation of MPs in aqueous systems is still unclear. The photodegradation characteristics of polystyrene microplastics (PS-MPs) in an aqueous system in the presence of humic acid (HA, a signature compound of DOM) under ultraviolet light conditions were investigated in this study through Fourier transform infrared spectroscopy coupled with two-dimensional correlation analysis, electron paramagnetic resonance, and gas chromatography-mass spectrometry (GC/MS).

Enhancing the compost maturation of deer manure and corn straw by supplementation via black liquor.

In this paper, the relationship between black liquor and microbial growth, enzymatic secretion and humus formation in composting was studied. The results showed that black liquor inoculation is an effective way to promote fermentation process. After black liquor inoculation, the abundance of , , and , which have the catalase and oxidase activity, has been significantly increased.

Anaerobic Co-Digestion of Pig Manure and Rice Straw: Optimization of Process Parameters for Enhancing Biogas Production and System Stability.

The objective of this study was to optimize the process parameters of the anaerobic co-digestion of pig manure and rice straw to maximize methane production and system stability. In this study, batch experiments were conducted with different mixing ratios of pig manure and rice straw (1:0, 1:1, 1:5, 1:10, and 0:1), total solid concentrations (6%, 8%, 10%, 12%, and 14%), and inoculum accounts (5%, 10%, 15%, 20%, and 25%). The results show that a 1:5 mixing ratio of pig manure to rice straw, a 12% total solid content, and a 15% inoculum account yielded biogas up to 553.

The establishment and validation of reference intervals for plasma Pentraxin-3 in healthy volunteers and patients with Takayasu's arteritis.

Background And Aims: To establish reference intervals (RIs) for PTX-3 and to validate the performance of these RIs in a population including healthy volunteers and Takayasu's arteritis (TAK) patients.

Materials And Methods: Plasma PTX-3 levels were determined in 166 healthy volunteers and 63 TAK patients. RIs were established in healthy volunteers according to guidelines from the Clinical and Laboratory Standards Institute (CLSI, C28-A3).

Gallium-Based Liquid Metal Materials for Antimicrobial Applications.

The hazards caused by drug-resistant bacteria are rocketing along with the indiscriminate use of antibiotics. The development of new non-antibiotic antibacterial drugs is urgent. The excellent biocompatibility and diverse multifunctionalities of liquid metal have stimulated the studies of antibacterial application.

Estimation of amino acid contents in maize leaves based on hyperspectral imaging.

Estimation of the amino acid content in maize leaves is helpful for improving maize yield estimation and nitrogen use efficiency. Hyperspectral imaging can be used to obtain the physiological and biochemical parameters of maize leaves with the advantages of being rapid, non-destructive, and high throughput. This study aims to estimate the multiple amino acid contents in maize leaves using hyperspectral imaging data.

New insights into the distribution and interaction mechanism of microplastics with humic acid in river sediments.

Information on the distribution and interaction of microplastics (MPs) and humic acids (HAs) in river sediment has not been fully explored. This study assessed the distribution and interaction of MPs with HAs at different depths in river sediments. The results delineated that the average abundance of MPs in the 0-10 cm layer (190 ± 20 items/kg) was significantly lower than that in the 11-20 cm and 21-30 cm layers (211 ± 10 items/kg and 238 ± 18 items/kg, respectively).

Enhanced laccase production by mutagenized Myrothecium verrucaria using corn stover as a carbon source and its potential in the degradation of 2-chlorophen.

Chlorophenols are widely used in industry and are known environmental pollutants. The degradation of chlorophenols is important for environmental remediation. In this study, we evaluated the biodegradation of 2-chlorophenol using crude laccase produced by Myrothecium verrucaria.

Ordered Ag Nanoneedle Arrays with Enhanced Electrocatalytic CO Reduction via Structure-Induced Inhibition of Hydrogen Evolution.

Silver is an attractive catalyst for converting CO into CO. However, the high CO activation barrier and the hydrogen evolution side reaction seriously limit its practical application and industrial perspective. Here, an ordered Ag nanoneedle array (Ag-NNAs) was prepared by template-assisted vacuum thermal-evaporation for CO electroreduction into CO.

The transcription factor ZmMYB69 represses lignin biosynthesis by activating ZmMYB31/42 expression in maize.

A MYB family transcription factor ZmMYB69 is a transcriptional activator at the upper level of ZmMYB31 and ZmMYB42 in the hierarchical network that controls lignin biosynthesis in maize.