Results 51 to 60 of about 21,949 (310)

Extracellular Electron Transfer May Be an Overlooked Contribution to Pelagic Respiration in Humic-Rich Freshwater Lakes

open access: yesmSphere, 2019
Humic lakes and ponds receive large amounts of terrestrial carbon and are important components of the global carbon cycle, yet how their redox cycling influences the carbon budget is not fully understood.
Shaomei He   +4 more
doaj   +1 more source

Protein Profiling of Arabidopsis Roots Treated With Humic Substances: Insights Into the Metabolic and Interactome Networks [PDF]

open access: yes, 2018
Background and Aim: Humic substances (HSs) influence the chemical and physical properties of the soil, and are also known to affect plant physiology and nutrient uptake.
Antonio Masi   +9 more
core   +4 more sources

Microenvironment Modulation‐Based Nanomaterial‐Loaded Hydrogel Dressings for Diabetic Foot Ulcers: Research Progress and Future Perspectives

open access: yesAdvanced Materials Interfaces, EarlyView.
xx xx. ABSTRACT Diabetic foot ulcer (DFU) is a chronic complication of diabetes, primarily caused by hyperglycemia, peripheral vascular disease, and neuropathy. Characterized by persistent hyperglycemia, impaired perfusion, inflammation, and infection, DFUs pose significant challenges to healing and are associated with high morbidity and amputation ...
Tang Yuqing   +5 more
wiley   +1 more source

Characterization of Humic Acid from the River Bottom Sediments of Burigonga: Complexation Studies of Metals with Humic Acid [PDF]

open access: yesPakistan Journal of Analytical & Environmental Chemistry, 2010
In order to characterize and study of the complexation of humic acid with metal ions, sediment samples were collected from five different places in the Buriganga River.
Mohammad Arifur Rahman   +3 more
doaj  

Photochemical Reactivity of Humic Substances in an Aquatic System Revealed by Excitation-Emission Matrix Fluorescence

open access: yesFrontiers in Chemistry, 2021
The photochemical reactivity of humic substances plays a critical role in the global carbon cycle, and influences the toxicity, mobility, and bioavailability of contaminants by altering their molecular structure and the mineralization of organic carbon ...
Xin-yuan Wang   +8 more
doaj   +1 more source

An archaeological mystery revealed by radiocarbon dating of cross-flow nanofiltrated amino acids derived from bone collagen, silk, and hair: case study of the bishops Baldwin I and Radbot II from Noyon-Tournai [PDF]

open access: yes, 2014
Excavations in the cathedral of Tournai revealed two sepultures, which were identified by the excavators as those of bishops because of their special location in the cathedral. One burial was assigned to Baldwin I, who died in AD 1068, because (1) a ring
Boeckx, Pascal   +3 more
core   +1 more source

Non‐Functionalized Graphene as an Electrical Sensing Surface for Bacterial Detection

open access: yesAdvanced Materials Interfaces, EarlyView.
Pathogenic bacteria detection in food remains a major public health concern, driving the need for rapid, cost‐effective, and portable detection systems. This review focuses on the use of non‐functionalized graphene as an electrical sensing surface for bacterial detection, highlighting their unique properties, sensing mechanism, and current developments.
Jazmin Berthe   +4 more
wiley   +1 more source

Powder‐to‐Film Conversion of Nickel Single‐Atom Catalysts into Binder‐Free and Resistant Electrodes

open access: yesAdvanced Materials Interfaces, EarlyView.
A reproducible strategy is reported for fabricating standalone thin‐film electrodes composed of CNx‐supported Ni single‐atom catalysts. The resulting binder‐free electrodes exhibit robust stability, enhanced charge transfer, and superior electrochemical performance, offering scalable opportunities for applications in electrochemistry. ABSTRACT Although
Milla Vigliengo   +8 more
wiley   +1 more source

Design of high-performance electro-driven nanofiltration membrane via facile co-deposition of pyrogallol and polyethyleneimine for sustainable resource recovery from landfill leachate concentrate

open access: yesAdvanced Membranes
Conventional treatment methods of landfill leachate concentrate mainly focus on the degradation or removal of humic substance, which are prone to secondary pollution and fail to meet the requirements of current sustainable development.
Jiale Du   +5 more
doaj   +1 more source

Influence of Humic Substances on the Sorption Interactions between Lanthanide and Actinide Ions and Clay Minerals

open access: yesAdsorption Science & Technology, 2000
Lanthanide (Eu, Nd, Gd) and actinide (Th, U) adsorption in a system consisting of fulvic acid, metal ions and clay minerals (montmorillonite, kaolinite, illite) was studied as a function of pH, metal ion concentration and fulvic acid concentration using ...
B. Kornilovich   +3 more
doaj   +1 more source

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