Results 21 to 30 of about 26,622 (311)

Evaluation of Preclinical Toxicity of Methanolic Extract of Sargassum tenerrimum using the Zebrafish Model [PDF]

open access: yesJournal of Clinical and Diagnostic Research
Introduction: In the field of biomedicine, marine algae have gained significant attention due to the abundance of bioactive compounds they contain. However, studies on the chronic toxicity of algae are limited.
Raman Yadav   +4 more
doaj   +1 more source

Perforated Tube vs. Soxhlet Apparatus: A New Extraction Tool Confirming by Clove Sample and GC-Mass Analysis

open access: yesIraqi Journal of Industrial Research, 2022
In this paper, a new efficient extraction tool of bioactives from plant parts was designed, applied, and compared with Soxhlet apparatus. This tool was a Quickfit®- Pyrex® glass tube perforated easily inserted in round flask containing solvent.
Kafa Khalaf
doaj   +1 more source

Organic Electrochemical Transistor Channel Materials: Copolymerization Versus Physical Mixing of Glycolated and Alkoxylated Polymers

open access: yesAdvanced Functional Materials, EarlyView.
This work discusses the use of blended channel materials in OECTs. It explores how mixing glycolated and alkoxylated polymers in various ratios offers a simpler and more efficient route to tuning OECT properties. The performance of the polymer blends is compared to the corresponding copolymers, demonstrating similar OECT characteristics, swelling ...
Lize Bynens   +14 more
wiley   +1 more source

Atmospheric Deposition of Organic Pollutants: A Comprehensive Review of Sampling and Analytical Methodologies. [PDF]

open access: yesAnal Sci Adv
ABSTRACT Atmospheric deposition of organic pollutants plays a crucial role in the transport and fate of contaminants in the environment, with implications for ecosystem health and human exposure. Persistent organic pollutants (POPs), polycyclic aromatic hydrocarbons (PAHs) and microplastics are increasingly recognized as transboundary threats due to ...
Smoljo I, Mendaš G, Pehnec G.
europepmc   +2 more sources

MnI‐Functionalized Covalent Organic Framework as Efficient Electrocatalyst for CO2 Reduction in a Catholyte‐Free Zero‐Gap Electrolyzer

open access: yesAdvanced Functional Materials, EarlyView.
This work demonstrates the successful integration of a phenanthroline‐based 2D COF with MnI catalytic sites into a catholyte‐free membrane‐electrode‐assembly cell for CO2 electroreduction. The crystalline COF actively suppresses Mn⁰–Mn⁰ dimerization, achieving a turnover frequency of 617 h⁻¹ at 2.8 V (full‐cell potential), and enabling stable operation.
Laura Spies   +8 more
wiley   +1 more source

Laser‐Induced Graphene from Waste Almond Shells

open access: yesAdvanced Functional Materials, EarlyView.
Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova   +9 more
wiley   +1 more source

Designing Thermally Compatible Template‐Coating Pairs Toward Dimensionally Stable 3D Porous Carbons with Tunable Density

open access: yesAdvanced Functional Materials, EarlyView.
3D porous carbons with tunable density are crucial for energy storage, separations, and load‐bearing applications; however, their fabrication is often constrained by shrinkage during pyrolysis. This study optimizes and demonstrates the versatility of a template–coating pair strategy, producing materials that largely retain their shape and hierarchical ...
Adarsh Suresh   +7 more
wiley   +1 more source

Valorisation of Algerian agro-wastes as renewable biofuels: Impact of using microwave-assisted method on lipid extraction

open access: yesRevue des Énergies Renouvelables
Fossil fuels are the largest contributor to climate change, representing about 90% of carbon dioxide emissions. Given the environmental impact and the high prices around the world, finding an alternative solution has become necessary at the present time.
Fairouz Bakhouche   +2 more
doaj   +1 more source

Ammonium Salts as Curing Agents to Obtain Ionic Epoxy Resins With a Thermoplastic‐to‐Thermoset Transition

open access: yesAdvanced Materials, EarlyView.
Ionic epoxy networks are prepared using ammonium salts as hardeners, leading to a two‐stage curing process with a thermoplastic‐like intermediate. This uncommon behavior enables extrusion and fabrication of thermoplastic prepregs that can be cured into thermoset composites.
Izabela Kurowska   +10 more
wiley   +1 more source

Ultrathin, Unsinkable, Janus‐Faced Solar–Thermal Interfacial Evaporator for High‐Throughput Seawater Distillation and Solar‐Water Production

open access: yesAdvanced Science, EarlyView.
A nanostructured carbon‐coated porous polymeric scaffold is developed to accelerate the hydrological cycle, enabling solar–thermal freshwater production from saline water with reduced energy consumption and CO2 footprint. Abstract Solar–thermal distillation offers immense and hitherto untapped potential for energy‐efficient, sustainable freshwater ...
Mohammed Aslam Villan   +6 more
wiley   +1 more source

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