Results 131 to 140 of about 88,240 (296)

Optimized Ex Vivo Human Liver Slice Culture Maintains Extended Viability and Function for Hepatotoxicity Testing

open access: yesAdvanced Science, EarlyView.
An optimized ex vivo human liver slice culture system preserves tissue architecture, hepatocyte function, and immune‐stromal complexity for at least five days. By refining slice thickness, oxygenation, air‐liquid interface, and extracellular matrix support, the platform enables human‐relevant hepatotoxicity testing and mechanistic studies, offering a ...
Huiche Feng   +17 more
wiley   +1 more source

Cost, techno-economic feasibility and environmental impact mitigation potential of green ammonia fertilizer manufacturing and use in agriculture: A systematic review

open access: yesCleaner Environmental Systems
Inorganic nitrogen (N) fertilizer is an important input in the agri-food sector to maximise crop yield and land productivity. Ammonia, the basic feedstock for inorganic N fertilizer production, is currently synthesized from the steam methane reforming of
Lauren McNeil   +2 more
doaj   +1 more source

Dynamic Etching‐Induced Cl‐Terminated Ti3C2Clx/Ti3ZnC2 Heterostructure for Ammonia Electrosynthesis and Zinc‐Nitrogen Batteries

open access: yesAdvanced Science, EarlyView.
A stable Ti3C2Clx/Ti3ZnC2 heterostructure, fabricated by dynamic etching, exhibits outstanding electrocatalytic NRR activity (NH3 yield: 20.1 µg h−1 mg−1, FE: 38.1%) in alkaline media. The corresponding Zn‐N2 battery achieves a peak power density of 36.5 µW cm−2 and an NH3 yield of 13.1 µg h−1 mg−1, providing an advanced strategy for NH3 and ...
Yu Wang   +9 more
wiley   +1 more source

Engineering an Optogenetic pH‐Modulator in Bacteria

open access: yesAdvanced Science, EarlyView.
ABSTRACT Cells in many naturally occurring organisms routinely cooperate to control their extracellular pH in a dynamic and reversible manner, but this capability has been underexplored in synthetic biology. Here, we sought to engineer a microbial system that switches between two states —high and low extracellular pH— with minimal human intervention ...
Jenevieve Kuang   +7 more
wiley   +1 more source

Coupling Anodic Reactions in Electrochemical Nitrate Reduction to Ammonia

open access: yesChemElectroChem
Ammonia is a widely produced chemical globally, primarily used in fertilizers and chemical products. Recently, it has gained attention as a green hydrogen carrier due to its high hydrogen content and energy density.
Chaeeun Lim, Hyein Jo, Prof. Kijung Yong
doaj   +1 more source

Tailored Catalytic Microenvironments Enable Efficient Electrochemical Ammonia Production

open access: yesAdvanced Science, EarlyView.
This study shows that Co2+ substitution in inverse spinel FeFeCoO4 constructs an integrated catalytic microenvironment for efficient nitrate‐to‐ammonia reduction. Jahn–Teller distortion activates Fe sites for *H generation, while hard–soft acid–base regulated dual‐metal sites optimize proton‐coupled electron transfer and intermediate adsorption ...
Qi Zhang   +8 more
wiley   +1 more source

Flexible Green Ammonia Production: Impact of Process Design on the Levelized Cost of Ammonia

open access: yesFuels
This study evaluates the economic feasibility of flexible, renewable ammonia production in Italy through a comprehensive sensitivity analysis of the levelized cost of ammonia (LCOA).
Cecilia Pistolesi   +3 more
doaj   +1 more source

Integrated Single‐Cell and Spatial Analysis Reveals a Metabolic‐Immune Axis Driving Aortic Dissection

open access: yesAdvanced Science, EarlyView.
Single‐cell and spatial profiling of 110 human thoracic aortic samples reveals a stromal–immune circuit driving aortic dissection. An elastin‐rich fibroblast subset is depleted with age and markedly reduced in disease, weakening aortic wall integrity.
Jing Tao   +25 more
wiley   +1 more source

Green hydrogen integration for the improvement of ammonia synthesis. [PDF]

open access: yes
This work analyzes the use of green hydrogen in ammonia synthesis, aiming to provide insights into the advantages of this technology. Attention is given to environmental benefits, which include reduced emissions into the atmosphere, as well as positive ...
Macidulskaitė, Vesta,
core  

Fluorescence Tuning of Carbon Dots from Red to Blue via UV‐Induced Photochemical Etching

open access: yesAdvanced Science, EarlyView.
A UV‐driven photochemical process enables continuous color evolution of carbon dots from red to blue using a single irradiation parameter. Progressive photoetching restructures graphitic domains and surface states, allowing full visible‐spectrum emission control.
Nanzhi Zheng   +6 more
wiley   +1 more source

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