Results 71 to 80 of about 653,729 (240)

Cation Diffusion‐Mediated Displaced Reaction‐Transformation in Green Steelmaking

Advanced Science, EarlyView.
The removal of O lattice atoms by environmental H2 at the surface of Fe3O4 results in Fe enrichment, driving the inward diffusion of Fe cations into the bulk. Through hopping between unoccupied and initially occupied sites, cation diffusion triggers a spatially displaced reaction‐transformation and drives subsequent dynamic phase transformations and ...
Guangyi Guo, Paul Paciok, Baptiste Bienvenu, Longqi Bai, Barak Ratzker, Marc Heggen, Xuyang Zhou, Dierk Raabe   +7 more
wiley   +1 more source

Synthesis, Characterization and Evaluation of Cytotoxicity Characteristics of Magnetite Nanoparticles Coated by Polyvinyl Alcohol for Biomedical Applications

Journal of Advanced Materials in Engineering, 2013
In this study, magnetite (Fe3O4) nanoparticles were synthesized by chemical co-precipitation from the solution containing iron salts in alkaline medium under N2 gas and room temperature.
M.Tahriri, F. Moztarzadeh, M. Raz, M. Ashuri   +3 more
doaj  

Solvent Oxidation‐Directed Synthesis of Highly Crystalline Iron Oxide Nanoparticles With Near‐Bulk Magnetization

Advanced Science, EarlyView.
Controlled oxidation of benzyl ether is established as a key synthetic parameter in the thermal decomposition of iron(III) acetylacetonate. Oxygenated solvent species alter precursor coordination and nucleation–growth kinetics, producing highly crystalline, magnetite‐rich nanoparticles with tunable size, controlled morphology, and near‐bulk ...
Lukas Hertle, Valentin Gantenbein, Joaquim Llacer‐Wintle, Mingchen Ma, Ziyu Li, Pu Luo, Zhengwei Tan, Fei Chen, Chen Chen, Chuanyi Wu, Chenxin Gao, Chenyi Zhou, Carlos Franco, Pere Bruna, Josep Puigmartí‐Luis, Xiang‐Zhong Chen, Bradley J. Nelson, Salvador Pané   +17 more
wiley   +1 more source

Atmospheric Water Harvesting Through Polymer Hydrogel Sorbents: Materials Chemistry, Design Strategies, and Applications

Advanced Science, EarlyView.
Polymer‐based hydrogels have emerged as promising materials for atmospheric water harvesting (AWH) due to their high water affinity, tunable network structure, and excellent moisture adsorption‐desorption performance. Functional hydrogel systems enable efficient water capture and controlled release under low‐energy conditions, offering a sustainable ...
Swagata Datta, Sushmit Sen, Nilanjan Dey, Amrita Chatterjee, Ananya Sadhu, Sudipta Sarkar, Pradip K. Maji   +6 more
wiley   +1 more source

Magnetic Nanoparticles in Human Cervical Skin

Frontiers in Medicine, 2019
Magnetic iron oxide nanoparticles, magnetite/maghemite, have been identified in human tissues, including the brain, meninges, heart, liver, and spleen.
Kari Murros, Joonas Wasiljeff, Elena Macías-Sánchez, Damien Faivre, Damien Faivre, Lauri Soinne, Jussi Valtonen, Marjatta Pohja, Pekka Saari, Lauri J. Pesonen, Johanna M. Salminen, Johanna M. Salminen   +11 more
doaj   +1 more source

Electrically Tuning Electromagnetic Wave Shielding in Phase Engineered 1T/2H‐MoS2‐Based Devices

Advanced Electronic Materials, EarlyView.
Sub‐millimeter‐thick phase‐engineered 1T/2H‐MoS2 structures enable electrically tunable electromagnetic interference shielding through active modulation of microwave absorption and reflection. The coexistence of metallic and semiconducting phases, combined with a PVA/KOH gel electrolyte, provides dynamic control over charge transport and interfacial ...
Mustafa Akyol, Atalay Bozdogan, Hakan Eroglu, Muharrem Karaaslan   +3 more
wiley   +1 more source

Cationic Magnetite Nanoparticles for Increasing siRNA Hybridization Rates

Nanomaterials, 2020
An investigation of the interaction principles of nucleic acids and nanoparticles is a priority for the development of theoretical and methodological approaches to creating bionanocomposite structures, which determines the area and boundaries of ...
Artur Y. Prilepskii, Arseniy Y. Kalnin, Anna F. Fakhardo, Elizaveta I. Anastasova, Daria D. Nedorezova, Grigorii A. Antonov, Vladimir V. Vinogradov   +6 more
doaj   +1 more source

Stabilization and encapsulation of magnetite nanoparticles

Materials Research Express, 2016
The goal is to stabilize magnetite nanoparticles (NPs) in order to prepare them for encapsulation and to obtain a core–shell structure. Magnetite NPs were obtained by a co-precipitation method and then treated with different stabilizing agents in order to get a full dispersion in an aqueous medium.
Podlecki, Jean, Kawni, Issmat Al, Garcia, Ricardo, Youssef, Sami, Abboud, Maher, Habchi, Roland   +5 more
openaire   +1 more source

Functional analysis of the magnetosome island in Magnetospirillum gryphiswaldense: the mamAB operon is sufficient for magnetite biomineralization [PDF]

, 2011
Bacterial magnetosomes are membrane-enveloped, nanometer-sized crystals of magnetite, which serve for magnetotactic navigation. All genes implicated in the synthesis of these organelles are located in a conserved genomic magnetosome island (MAI).
Voigt Birgit, Losse, A., Richter, M., Katzmann, E., Lohße Anna, Michael Richter, Richter, Michael, Emanuel Katzmann, Ullrich, Susanne, Birgit Voigt, Wanner, G., Katzmann, Emanuel, Borg, Sarah, Lohsse, Anna, Gerd Wanner, Ullrich, S., Wanner Gerd, Ullrich Susanne, Schweder, Thomas, Voigt, Birgit, Dirk Schüler, Schweder Thomas, Richter Michael, Sarah Borg, Wanner, Gerd, Susanne Ullrich, Borg Sarah, Schweder, T., Schüler, Dirk, Schüler Dirk, Voigt, B., Katzmann Emanuel, Borg, S., Thomas Schweder, Schueler, D., Anna Lohsse   +35 more
core   +2 more sources

Bioconvective Unsteady Casson Hybrid Nanofluid Flow on a Variable Darcy Regime Between Two Rotating Disks With Variable Heat Source

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT This study carries significant consequences in various engineering applications, such as cooling rotating disk surfaces, improving chemical reactor performance, and designing filtration systems. Considering these main applications in view, the aim of this study is to investigate time‐dependent Casson hybrid nanofluid flow on a permeable ...
Ebrahem A. Algehyne, Abdul Bariq, Mounirah Areshi, Fahad Maqbul Alamrani, Zehba Raizah, Izharul Haq, Anwar Saeed   +6 more
wiley   +1 more source