Results 31 to 40 of about 1,771 (112)

Distribución espacial y temporal de las especies de diatomeas epilíticas del río Apatlaco, Morelos (México)

Lilloa
Las diatomeas desempeñan un papel esencial en los ecosistemas acuáticos al contribuir significativamente a la producción primaria global. Su alta sensibilidad a las condiciones fisicoquímicas del agua las convierte en bioindicadores de cambios ...
Adrián Rojas-Romero, Judith García Rodríguez, Migdalia Díaz-Vargas, Elsah Arce, Olivia De los Santos, Marco P. Franco   +5 more
doaj   +1 more source

Photochemical and Photobiological Activity of Zn, Cu, Ni, Co, Fe and Mn Unsubstituted Phthalocyanines

Chemistry Proceedings, 2023
Phthalocyanines are a group of porphyrin synthetic molecules. These compounds show outstanding photodynamic properties. This is due to their high ability to photogenerate free radicals, such as 1O2 and O.−2.
Franklin Vargas, Miguel León, Álvaro Álvarez, Sergio Dasilva, Alexis Maldonado   +4 more
doaj   +1 more source

Covalent Functionalization of NiFe Layered Double Hydroxides using Tris(Hydroxymethyl)Aminomethane

Small, EarlyView.
Covalent functionalization of NiFe layered double hydroxides with tris(hydroxymethyl)aminomethane enables controlled growth, enhanced structural order, and improved processability. Temporary TRIS anchoring promotes stable water‐based inks and binder‐free electrode fabrication, leading to enhanced oxygen evolution activity and long‐term stability under ...
Alvaro Seijas Da Silva, Federico Juarez‐Dominguez, Víctor Oestreicher, Martín Mizrahi, Diego Hunt, Bruno J. C. Vieira, Joao C. Waerenborgh, Valeria Ferrari, Gonzalo Abellán   +8 more
wiley   +1 more source

Determinación de la constante de Henry de la disolución del CO2 en un refresco dietético

Educación Química
Se propone un experimento, empleando como sistema un refresco de cola dietético comercial, con el fin de determinar la constante de Henry del equilibrio químico de distribución del dióxido de carbono (CO2) entre las fases gaseosa y acuosa a diferentes ...
Gerardo Omar Hernández Segura, Aline Villarreal, Diego Yahir Pérez Sereno, Luis Miguel Trejo Candelas , Ricardo Manuel A. Estrada Ramírez   +4 more
doaj   +1 more source

Insights into the equilibrium structure and translocation mechanism of TP1, a spontaneous membrane-translocating peptide

Scientific Reports, 2022
Crossing the cellular membrane is one of the main barriers during drug discovery; many potential drugs are rejected for their inability to integrate into the intracell fluid.
Diego Muñoz-Gacitúa, Fanny Guzman, Boris Weiss-López   +2 more
doaj   +1 more source

Unraveling Pathway Complexity in Photoreversible Supramolecular Hydrogels: Real‐Time Visualization and Sub‐Micrometric Photopatterning

Small, EarlyView.
This research demonstrates real‐time visualization of supramolecular sol‐gel transitions using Fluorescence Lifetime Imaging Microscopy (FLIM). By leveraging 5D visualization, integrating 3D space, time, and polarity resolution, we achieved maskless sub‐micrometric photopatterning within the gel matrix.
Federico Movilla, Consuelo Ripoll, Cristián Huck‐Iriart, Juan A. González‐Vera, Angel Orte, Rafael Contreras‐Montoya   +5 more
wiley   +1 more source

Energy and Planarity in Boron‐Nitrogen Fulvene Isomers: A Quantum‐Chemical and QSPR Study

International Journal of Quantum Chemistry, Volume 126, Issue 15, August 5, 2026.
Electronic structure quantum‐chemical computations and Quantitative Structure–Property Relationships (QSPR) regression and classification models are used as complementary tools for classifying unknown boron‐nitrogen fulvene isomers with respect to energy order and planarity.
Gustavo E. Massaccesi, Pablo R. Duchowicz, Diego R. Alcoba, Ofelia B. Oña, Luis Lain, Alicia Torre, David L. Cooper, Josep M. Oliva‐Enrich   +7 more
wiley   +1 more source

Structural organization of the neuronal pathways of the superior ovarian nerve in the rat

Journal of Ovarian Research, 2023
Background In the rat, studies have shown that ovary innervation arrives via the superior ovarian nerve (SON) and the ovarian plexus nerve, which originates from the celiac plexus (CP).
Cesar F. Pastelin, María E. Rivera-Castro, Nancy Mirto-Aguilar, Carolina Moran   +3 more
doaj   +1 more source

From surface chemistry to nuclear targeting: The multifaceted challenge of genetic delivery via inorganic nanoparticles

Hybrid Advances
The delivery of therapeutic genes represents a transformative strategy for the treatment of genetic and complex diseases. Despite the clinical success of viral vectors, their high cost, immunogenicity, and limited cargo capacity underscore the need for ...
Cecilia Vasti, Ludmila D'Alessandro, Dariana Aristizabal Bedoya, Laura E. Valenti, Carla E. Giacomelli   +4 more
doaj   +1 more source

Mechanistic Insight into H2S‐Induced Fluorescence Quenching in a Robust Metal–Organic Framework

Small, Volume 22, Issue 39, 13 July 2026.
An ultramicroporous Zn‐based metal‐organic framework, MFM‐520, enables reversible hydrogen sulfide adsorption and selective fluorescence sensing. Confinement of H2S within the pores perturbs ligand‐centered excited states through weak host‐guest interactions, enhancing non‐radiative decay pathways.
Valeria B. López‐Cervantes, Juan L. Obeso, J. Gabriel Flores, Ricardo A. Peralta, José Antonio de los Reyes, Jiangnan Li, Sihai Yang, Elodie Strupiechonski, Andrés De Luna Bugallo, Aída Gutiérrez‐Alejandre, Yoarhy A. Amador‐Sánchez, Diego Solis‐Ibarra, Ilich A. Ibarra   +12 more
wiley   +1 more source