Results 51 to 60 of about 484,835 (289)

Direct Reuse of Recycled/Impure Pt Precursor for the Production of New Electrocatalysts: Implementing a Sustainable and Industrially Viable Circular Hydrogen Economy Model

Compounds
The advancement of catalytic materials is critical to improving the performance, reducing the cost and enhancing the sustainability of Proton Exchange Membrane (PEM) fuel cells and electrolyzers. Although Platinum Group Metal (PGM)-based electrocatalysts
Eirini Zagoraiou, Olga Thoda, Ekaterini Polyzou, Anastasia Maria Moschovi, Iakovos Yakoumis   +4 more
doaj   +1 more source

Carrageenan-grafted-poly(acrylamide) magnetic nanocomposite modified with graphene oxide for ciprofloxacin removal from polluted water

Alexandria Engineering Journal, 2023
The κ-carrageenan-grafted-poly(acrylamide)/Fe3O4-GO (κ-car-g-PAAm@Fe3O4-GO) adsorbent was attained in three stages, utilizing grafted poly(acrylamide) (PAAm) onto κ-carrageenan (κ-car) in Fe3O4 and graphene oxide (GO) presence.
Fereshte Hassanzadeh-Afruzi, Mohadeseh Forouzandeh-Malati, Fatemeh Ganjali, Mohammad Mehdi Salehi, Ali Maleki, Ehsan Nazarzadeh Zare   +5 more
doaj   +1 more source

Ruthenium Metathesis Catalysts with Imidazole Ligands

, 2023
Phosphine-free ruthenium benzylidene complexes containing imidazole ligands are reported. These catalysts are effective for ring-closing metathesis (RCM) and cross-metathesis (CM) reactions at high temperatures, where the more widely used phosphine ...
Xiaqian Wu, Jiaren Zhang, Jianhui Wang, Peng Ma   +3 more
core   +1 more source

Epigenetic reprogramming of lineage switching in cancer

FEBS Letters, EarlyView.
Cancer cells rarely commit to a single identity. Epigenetic mechanisms and tumor microenvironment cues push epithelial cells toward flexible, hybrid states that can shift into mesenchymal, neuroendocrine, or stem‐like fates, driving metastasis, drug resistance, and tumor heterogeneity. Targeting the epigenetic regulators behind these transitions, using
Ezgi Boyvatlı, Burcu Akman, Ezgi Bağırsakçı, Nese Atabey, Serap Erkek‐Ozhan   +4 more
wiley   +1 more source

De-oxygenation of CO2 by using Hydrogen, Carbon and Methane over Alumina-Supported Catalysts [PDF]

, 2012
The de-oxygenation of CO2 was explored by using hydrogen, methane, carbon etc., over alumina supported catalysts. The alumina-supported ruthenium, rhodium, platinum, molybdenum, vanadium and magnesium catalysts were first reduced in hydrogen atmosphere ...
Raskar, R.Y., Kale, K.B., Gaikwad, A.G.
core   +2 more sources

Design and synthesis of a novel nanocomposite based on magnetic dopamine nanoparticles for purification of α-amylase from the bovine milk

Scientific Reports, 2021
In this paper, a novel nanocomposite based on magnetic nanoparticles decorated by dopamine were reported. Three modified magnetic nanocomposites by dopamine were offered with different type of linkers.
Reza Eivazzadeh-Keihan, Haniyeh Dogari, Farnoush Ahmadpour, Hooman Aghamirza Moghim Aliabadi, Fateme Radinekiyan, Ali Maleki, Leyla Saei Fard, Behnam Tahmasebi, Maryam Faraj Pour Mojdehi, Mohammad Mahdavi   +9 more
doaj   +1 more source

Synthesis and characterization of new biocatalyst based on LDH functionalized with l-asparagine amino acid for the synthesis of tri-substituted derivatives of 2, 4, 5-(H1)-imidazoles

Heliyon, 2023
In this study, a new and recyclable biocatalyst (MgAl CO3-LDH@Asn) was synthesized by immobilizing l-asparagine amino acid (Asn) on the surface of 3-(chloropropyl)-trimethoxysilane modified MgAl CO3-layered double hydroxide (LDH).
Shahram Moradi, Hadi Hassani Ardeshiri, Alireza Gholami, Hossein Ghafuri   +3 more
doaj   +1 more source

Emerging experimental and computational methods for studying redox‐regulated structural transitions

FEBS Letters, EarlyView.
Redox reactions can reshape proteins and alter how they behave in cells, with important consequences for health and disease. This review explores emerging experimental and computational approaches for discovering these redox‐sensitive protein switches, revealing their structural effects, and predicting their behavior, opening new opportunities to ...
Tasneem Rass, Dana Reichmann, Gábor Erdős   +2 more
wiley   +1 more source

Vanadia Promoted Co-AI20 3 Fischer-Tropsch Catalysts [PDF]

, 2004
Bibliography: leaves 117-124.The primary aim of this work was to study systematically V20 5 promotion on yAI203 supported cobalt-based Fischer-Tropsch catalysts.
Zwane, Seneliso T
core   +1 more source

Design and preparation of Fe3O4@PVA polymeric magnetic nanocomposite film and surface coating by sulfonic acid via in situ methods and evaluation of its catalytic performance in the synthesis of dihydropyrimidines

BMC Chemistry, 2019
For the first time, the design and preparation of magnetic polyvinyl alcohol (Fe3O4@PVA) nanocomposite film as a novel nanocatalyst was accomplished by in situ precipitation method.
Ali Maleki, Maryam Niksefat, Jamal Rahimi, Zoleikha Hajizadeh   +3 more
doaj   +1 more source