搜索结果: 1-15 共查到“activity”相关记录1939条 . 查询时间(0.228 秒)
beta-Pinene Derived Products With Enhanced In Vitro Antimicrobial Activity
β-pinene hydronopyl antifungal activity phytopathogenic fungi bacteria
2024/1/10
The development of new antimicrobials has always been a research hotspot. In this study, β-pinene-based derivatives were synthesized, and their antimicrobial activity was evaluated. The purpose was to...
Upgrading catalytic activity of NiO/CaO/MgO from natural limestone as catalysts for transesterification of coconut oil to biodiesel
Biodiesel Limestone Methyl ester PEG Vegetable oil
2023/12/19
Limestone was converted to high surface area CaO/MgO catalysts via calcination-hydration-dehydration (CHD) method for transesterification of coconut oil to biodiesel. Thermal?decomposition?at 900 degr...
Nanoarchitectonics of Starch Nanoparticles Rosin Catalyzed by Algerian Natural Montmorillonite (Maghnite-H+) for Enhanced Antimicrobial Activity
Rosin acid Starch Degree of substitution Bronsted and Lewis acid catalyst Antimicrobial activity
2023/11/30
In this work, potato starch was hydrolyzed by acid (HCl) to form nanoparticles (SNPs) that were esterified with acid Rosin using a green heterogeneous catalyst based on Algerian montmorillonite clay k...
Superior antibacterial activity of Fe3O4@copper(II) metal-organic framework core-shell magnetic microspheres
Fe3O4@copper(II) metal-organic framework core-shell magnetic microspheres
2023/6/21
With the rapid evolution of antibiotic resistant bacteria, it has become more and more difficult to treat bacterial infection with traditional antibiotics. Therefore, new strategies with high antibact...
Highly effective antibacterial activity of lithium-dopedmagnesium oxide particles synthesized by the microwave-assisted hydrothermal route
MgO particles Bacterial inactivation Microwave-assisted hydrothermal route Li doping Antibacterial mechanism
2023/6/21
Nanocrystallinemagnesiumoxide with different lithiumdopingmolar contents were prepared by amicrowaveassisted hydrothermal route to improve their antibacterial activity. The as-preparedMgO and Li-doped...
Uniform Pd0.33Ir0.67 nanoparticles supported on nitrogen-doped carbon with remarkable activity toward the alkaline hydrogen oxidation reaction
Alkalinity Anodes Binary alloys Carbon Cyclic voltammetry Density functional theory
2023/6/21
Highly efficient non-Pt electrocatalysts for the alkaline hydrogen oxidation reaction (HOR) are required to enable complete replacement of Pt in hydroxide exchange membrane fuel cells (HEMFCs). Herein...
The role of graphene loading on the corrosion-promotion activity of graphene/epoxy nanocomposite coatings
Graphene Polymer-matrix composites Coatings Corrosion
2023/6/21
It is still arguable whether graphene/polymer nanocomposite coating is corrosion inhibitors or promoters. This work aims to determine the "percolation threshold" for corrosion-promotion activity of th...
IAEA says increased military activity underlines need to protect Zaporizhzhia（图）
国际原子能机构 扎波罗热核电站 军事活动
2023/5/4
International Atomic Energy Agency (IAEA) Director General Rafael Mariano Grossi says agency staff stationed at the Zaporizhzhia nuclear power plant "were again forced to shelter after missile attack ...
郭新闻论文成果：Organic acid-assisted preparation of highly dispersed Co/ZrO2 catalysts with superior activity for CO2 methanation
CO2 methanation Cobalt catalyst ZrO2 Organic acid High dispersion
2023/3/6
Various organic acids were investigated for preparing the highly dispersed cobalt catalysts on zirconia support, Co/ZrO2, by an acid-assisted incipient wetness impregnation. The organic acid-assisted ...
Scientists last autumn revealed that the gas phosphine was found in trace amounts in Venus’ upper atmosphere. That discovery promised the slim possibility that phosphine serves as a biological signatu...
DEEP GREEN PANICLE1 suppresses GOLDEN2-LIKE activity to reduce chlorophyll synthesis in rice glumes
DGP1 OsGLK Chlorophyll Photosynthesis Rice Oryza sativa L.
2023/7/20
Understanding the regulation mechanisms of photosynthesis is key to improving its efficiency and, ultimately, crop yield. In this study, we report that DEEP GREEN PANICLE1 (DGP1) is involved in photos...
Volcanic activity and changes in Earth's mantle were key to rise of atmospheric oxygen（图）
Volcanic activity changes Earth mantle were key rise atmospheric oxygen
2020/6/19
Oxygen first accumulated in the Earth's atmosphere about 2.4 billion years ago, during the Great Oxidation Event. A long-standing puzzle has been that geologic clues suggest early bacteria were photos...
Immunity of recovered COVID-19 patients could cut risk of expanding economic activity（图）
Immunity recovered COVID-19 patients cut risk expanding economic activity
2020/5/15
While attention remains focused on the number of COVID-19 deaths and new cases, a separate statistic -- the number of recovered patients -- may be equally important to the goal of minimizing the pande...
Soil Microbial Diversity, Biomass, and Activity in Two Pine Plantations of Southern Italy Treated with Prescribed Burning
Pinus pinea plantation Pinus pinaster plantation prescribed burning microbial biomass microbial activity bacterial genetic diversit
2024/2/26
Microbial diversity plays a crucial role in ecosystem processes, including organic matter decomposition and nutrient cycling. This research explores the effect of prescribed burning (PB) on soil micro...
Effects of Post-Thinning Precipitation on Soil Acid Phosphomonoesterase Activity in Larix principis-rupprechtii Mayr. Plantations
precipitation thinning acid phosphomonoesterase Larix principis-rupprechtii Mayr
2024/2/29
Soil phosphorus (P) is one of the essential macronutrients for plant growth. Phosphatase-mediated P mineralization in particular is critical for the biogeochemical cycling of P, and its activity refle...