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Graphene-based structures have been widely reported as promising metal-free catalysts for nitrogen reduction reaction. To explain the reactivity origin, various structures have been proposed and debated, including defects, functional groups, and doped heteroatoms. This computational work demonstrates that these structures may evolve from one to another under electrochemical conditions, generating weakly coordinated carbons, which have been identified as the active sites for N adsorption and activation.
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http://dx.doi.org/10.1021/acs.langmuir.1c02358 | DOI Listing |
Mol Pharm
September 2025
Affiliated Hospital of Shandong Second Medical University, Shandong Second Medical University, Weifang 261053, Shandong, P. R. China.
Myocardial injury constitutes a life-threatening complication of sepsis, driven by synergistic oxidative-inflammatory pathology involving dysregulated production of reactive oxygen species (ROS), reactive nitrogen species (RNS), and proinflammatory cytokines. This pathophysiological cascade remarkably elevates morbidity and mortality rates in septic patients, emerging as a key contributor to poor clinical outcomes. Despite its clinical significance, no clinically validated therapeutics currently exist for managing septic cardiomyopathy.
View Article and Find Full Text PDFPhys Chem Chem Phys
September 2025
School of Chemical Sciences, Indian Association for the Cultivation of Science, 2A Raja S C Mullick Road, Jadavpur, Kolkata 700032, India.
This work presents a gas-phase experimental study on the reduction of NO (nitrogen dioxide) to HONO (nitrous acid) by two atmospherically significant volatile organic compounds (VOCs), namely, glycolaldehyde (Gla) and hydroxyacetone (HAc), under a simulated tropospheric condition. FTIR spectroscopic probing reveals that HONO is the only gaseous reduced product of NO in each reaction. The measured data indicate that the reactions in both cases occur in a 2 : 1 stoichiometry with respect to NO and Gla/HAc.
View Article and Find Full Text PDFNew Phytol
September 2025
State Key Laboratory of Nutrient Use and Management, College of Resources and Environmental Sciences, National Academy of Agriculture Green Development, China Agricultural University, Beijing, 100193, China.
Microbial nitrate ammonification is a crucial process to retain nitrogen (N) in soils, thereby reducing N loss. Nitrate ammonification has been studied in enrichment and axenic bacterial cultures but so far has been merely ignored in environmental studies. In particular, the capability of arbuscular mycorrhizal fungi (AMF) to regulate nitrate ammonification has not yet been explored.
View Article and Find Full Text PDFWater Environ Res
September 2025
Suzhou Institute of Trade & Commerce, Suzhou, China.
This study investigated the efficacy of two microalgae treatment systems (Chlorella vulgaris monoculture and a Chlorella vulgaris-S395-2-Clonostachys rosea symbiotic system) in treating aquaculture wastewater, under varying concentrations of synthetic strigolactone analog (GR24). By exposing the systems to four GR24 doses (0, 10, 10, and 10 M), we examined the impact on biomass growth, photosynthesis, and wastewater treatment. Elevated GR24 concentrations bolstered metabolism and photosynthesis in the systems, fostering rapid symbiont growth and enhanced treatment efficiency.
View Article and Find Full Text PDFSmall Methods
September 2025
The Research Institute for Advanced Manufacturing, and Department of Mechanical Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR, 999077, China.
Nitrogen cycle is a fundamental biogeochemical loop existed for millions of years, which involves the transformation of nitrogen-containing chemicals in the environment. However, human activities, especially those since the Industrial Revolution, have significantly disrupted this balance, leading to environmental and energy challenges. Electrocatalysis nitrogen cycle (ENC) offers a promising alternative for the sustainable transformation of nitrogen compounds en route toward rebalancing, with reactions such as the electrocatalytic nitrogen reduction reaction (eNRR) and nitrate/nitrite reduction reaction (eNORR/eNORR) emerging as sustainable alternatives to the traditional Haber-Bosch process.
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