Results 1 to 10 of about 1,323 (137)

Influence of the Surface Container Nature on the Magnetic Properties of a Magnetic Eutectic Mixture. [PDF]

Chemphyschem
The nature of the contact surface material affects the magnetic properties of a magnetic eutectic mixture (MEM). In polypropylene, MEM maintains its chemical structure and magnetism , whereas on glass surfaces, its chemical structures could be altered, increasing its adhesion to the surface and losing magnetism.
Zapater C, Aguirre MÁ, Vidal L, Canals A.   +3 more
europepmc   +2 more sources

Obtención de carburos de tantalio y de niobio por reducción carbotérmica del mineral columbotantalita [PDF]

Revista de Metalurgia, 1998
Los carburos de tantalio y de niobio se caracterizan por su extremada dureza y resistencia al ataque químico. Ambos carburos, pero principalmente el de tantalio, se utilizan en la fabricación de metal duro (carburos cementados), junto con otros carburos,
E. Gordo, F. García-Carcedo, J. M. Torralba   +2 more
doaj   +2 more sources

Effects of ceramic additives and bioactive coatings on the degradation of polylactic acid‐based bone scaffolds under hydrolytic conditions

Journal of Biomedical Materials Research Part B: Applied Biomaterials, Volume 111, Issue 2, Page 429-441, February 2023., 2023
Abstract Polylactic acid (PLA) has been extensively used for the manufacturing of scaffolds in bone tissue engineering applications. Due to the low hydrophilicity and the acidic degradation process of this biomaterial, different strategies have been proposed to increase the biofunctionality of the support structure.
Ricardo Donate, Mario Monzón, María Elena Alemán‐Domínguez, Francisco Rodríguez‐Esparragón   +3 more
wiley   +1 more source

Role of Graphene Oxide Aerogel Support on the CuZnO Catalytic Activity: Enhancing Methanol Selectivity in the Hydrogenation Reaction of CO2

ChemCatChem, Volume 14, Issue 18, September 20, 2022., 2022
CO2 hydrogenation: A novel graphene‐oxide aerogel supported CuZnO catalyst was synthesized for the selective CO2 hydrogenation to methanol. The graphene‐oxide support played a crucial role in the immobilization of the active nanoparticles, as well as in hindering the formation of diluted Cu−Zn surface alloy, which resulted in superior activity and ...
Márta Kubovics, Albert Trigo, Antoni Sánchez, Gregorio Marbán, Alejandro Borrás, Javier Moral‐Vico, Ana M. López‐Periago, Concepción Domingo   +7 more
wiley   +1 more source

Metataxonomic and metabolomic evidence of biofilm homeostasis disruption related to caries: An in vitro study

Molecular Oral Microbiology, Volume 37, Issue 2, Page 81-96, April 2022., 2022
Abstract The ecological dysbiosis of a biofilm includes not only bacterial changes but also changes in their metabolism. Related to oral biofilms, changes in metabolic activity are crucial endpoint, linked directly to the pathogenicity of oral diseases.
María C. Sánchez, Angela Velapatiño, Arancha Llama‐Palacios, Alberto Valdés, Alejandro Cifuentes, María J. Ciudad, Luis Collado   +6 more
wiley   +1 more source

Engineering pH‐Sensitive Stable Nanovesicles for Delivery of MicroRNA Therapeutics

Small, Volume 18, Issue 3, January 20, 2022., 2022
Here is reported the engineering of non‐liposomal lipid nanovesicles, named quatsomes, for the effective delivery of miRNAs and other small RNAs into the citosol of tumor cells, triggering a tumor‐suppressive response. These stable nanovesicles with tunnable pH sensitiveness constitute an attractive platform for the delivery of nucleic acids with ...
Ariadna Boloix, Natalia Feiner‐Gracia, Mariana Köber, Javier Repetto, Rosa Pascarella, Aroa Soriano, Marc Masanas, Nathaly Segovia, Guillem Vargas‐Nadal, Josep Merlo‐Mas, Dganit Danino, Inbal Abutbul‐Ionita, Laia Foradada, Josep Roma, Alba Córdoba, Santi Sala, Josep Sánchez de Toledo, Soledad Gallego, Jaume Veciana, Lorenzo Albertazzi, Miguel F. Segura, Nora Ventosa   +21 more
wiley   +1 more source

Electrochemical Reduction of 4‐Nitrobenzyl Phenyl Thioether for Activation and Capture of CO2

ChemElectroChem, Volume 8, Issue 14, Page 2649-2661, July 14, 2021., 2021
Double feature: The CO2 reactivity can be controlled and tuned, from electrocatalysis to capture, depending on the electrogenerated nitrobenzyl phenyl thioether (1) reduced intermediate. At low potential values, the compound 1 acts as a redox mediator that allows the reduction of CO2 at–1.2 V vs.
Silvia Mena, Cyril Louault, Verónica Mesa, Iluminada Gallardo, Gonzalo Guirado   +4 more
wiley   +1 more source

Influencia de las adiciones de TaC y NbC en las propiedades de los aceros rápidos pulvimetalúrgicos M3/2

Revista de Metalurgia, 2002
Este trabajo plantea la fabricación de materiales compuestos de matriz metálica, basados en el acero rápido M3/2 y reforzados con distintas cantidades de NbC y TaC, mediante técnicas convencionales pulvimetalúrgicas (P/M): mezcla, compactación y ...
E. Gordo, E. Velasco, M. A. Martínez, J. M. Torralba   +3 more
doaj   +1 more source

PROPIEDADES VIBRACIONALES DE CARBUROS DE MOLIBDENO NANOESTRUCTURADOS [PDF]

Epistemus, 2016
En este trabajo se hace un estudio de las propiedades vibracionales de espectroscopía micro Raman de carburos de molibdeno y sus correlaciones con los tamaños de fronteras de grano en función del tiempo de molienda, en atmosfera de gas de argón, y ...
Luis Iván Serrano Corrales, Keren Hapuc Gutiérrez Acosta, Ana Bertha López Oyama, Rogelio Gámez Corrales, Felipe Barffuson Domínguez   +4 more
doaj   +3 more sources

Influencia del tamaño de los carburos del acero para cojinetes de bolas relacionada con estabilización de diámetros y las propiedades mecánicas después del tratamiento térmico final

Revista de Metalurgia, 2005
El presente trabajo está dando un enfoque específico de lo que es la influencia de la estructura de la materia prima (dispersión y forma de los carburos) en estado recocido para la cantidad de austenita retenida, la dureza y otras propiedades después del
J. W. Filipek, E. Rincón
doaj   +1 more source