Results 1 to 10 of about 28,259 (157)

Elucidating the Three-Dimensional Structure of Piracetam through Rotational Spectroscopy. [PDF]

ChemistryOpen
Neutral molecules of the nootropic drug piracetam are generated by laser ablation and structurally characterized by microwave spectroscopy. Two conformers differing in the exo/endo configuration of the pyrrolidine ring are detected, with exo being the predominant form.
Mato S, Municio S, Alonso JL, Alonso ER, León I.   +4 more
europepmc   +2 more sources

Sustainable and Simple Water-Induced Separation of Ionic Liquid Mixtures. [PDF]

Angew Chem Int Ed Engl
The cover image illustrates an innovative method for recovering ionic liquids (ILs) from their mixtures. This approach enables the recovery of over 99% of the IL by simply adding water–abundant, and safe solvent–under mild conditions, all while preserving the integrity of the ILs.
de Moraes BR, Pádua A, Ando RA, Costa Gomes M.   +3 more
europepmc   +3 more sources

Rotational Spectroscopy as a Tool to Characterize Sweet Taste: The Study of Dulcin. [PDF]

ChemistryOpen
We provide experimental evidences that support the old theories of sweetness using dulcine as the archetypal molecule by means of Laser Ablation Chirped Pulse Fourier Transform Microwave Spectroscopy (LA‐CP‐FTMW) technique. Eluciding the structure of dulcin, we can decipher if it meets the structural requirements that a sweet molecule need to have ...
Juarez G, Alonso ER, Aguado R, León I.
europepmc   +2 more sources

Sexaje in ovo con Imágenes Hiperespectrales (HSI): Un método no destructivo y no invasivo

Agroindustrial Science, 2023
La avicultura a nivel mundial presenta un gran desarrollo; sin embargo, una de las grandes limitaciones es la determinación del sexo del embrión in ovo, debido a que en las granjas las aves son criadas con dos propósitos, producción de huevos o ...
Juan Ernesto Hernandez-Valdez, Daniel Castro-Salinas, Cesar Eduardo Honorio-Javes, Fredy Marcial Pajuelo-Risco   +3 more
doaj   +1 more source

Cocientes de bandas espectrales ASTER para la diferenciación litológica en formas del relieve de baja pendiente (NW de la Cuenca del Duero, León, España)

Geogaceta, 2023
En este estudio se utilizan imágenes ASTER (Advanced Spaceborne Thermal Emission and Reflection Radiometer) para proporcionar información sobre la composición mineral en zonas de cultivo sin vegetación en un sector del noroeste de la cuenca del Duero ...
Eduardo García Meléndez, Arturo Báscones López, Montserrat Ferrer Julià, Mercedes Suárez Barrios, Elena Colmenero Hidalgo, Juncal A. Cruz, Inés Pereira   +6 more
doaj   +1 more source

Towards the Configuration of a Photoelectrocatalytic Reactor: Part 2—Selecting Photoreactor Flow Configuration and Operating Variables by a Numerical Approach

Nanomaterials, 2022
This work aims to select a photoreactor flow configuration and operational conditions that maximize the Photocatalytic Space-time Yield in a photoelectrocatalytic reactor to degrade Reactive Red 239 textile dye.
Daniel Borrás-Jiménez, Wilber Silva-López, César Nieto-Londoño   +2 more
doaj   +1 more source

Magnetic Colloidal Currents Guided on Self‐Assembled Colloidal Tracks

Advanced Functional Materials, Volume 33, Issue 52, December 22, 2023., 2023
In this work, the ability of magnetic micro/nanoparticles to self‐assemble is exploited to construct pathways through which swarms of magnetic micro/nanoparticles are transported under low Reynolds number conditions. This disruptive strategy allows the study of superior transport mechanisms at the micro‐scale, as it is based on the ad hoc and flexible ...
José Martín‐Roca, Francisco Ortega, Chantal Valeriani, Ramón González Rubio, Fernando Martínez‐Pedrero   +4 more
wiley   +1 more source

Algoritmos de aprendizaje de máquina para la predicción de propiedades fisicoquímicas del suelo mediante información espectral: una revisión sistemática

Revista de Investigación, Desarrollo e Innovación, 2022
En la literatura científica actual se discute ampliamente acerca de la predicción de propiedades edáficas mediante información espectral. El objetivo de esta revisión fue encontrar algoritmos con el mayor potencial predictivo para las propiedades ...
Mateo Vargas-Zapata, Marisol Medina-Sierra, Luis Fernando Galeano-Vasco, Mario Fernando Cerón-Muñoz   +3 more
doaj   +1 more source

Nanocrystalline Flash Annealed Nickel Oxide for Large Area Perovskite Solar Cells

Advanced Science, Volume 10, Issue 23, August 15, 2023., 2023
The industrialization of perovskite solar cells requires selecting adequate materials and processes to make them economically viable and environmentally sustainable. Nanocrystalline nickel oxide produced through flash infrared annealing reduces the time, cost, energy, and the amount of solvents required to produce hole transport layers in perovskite ...
Efrain Ochoa‐Martinez, Shanti Bijani‐Chiquero, María del Valle Martínez de Yuso, Subhrangsu Sarkar, Horus Diaz‐Perez, Roberto Mejia‐Castellanos, Felix Eickemeyer, Michael Grätzel, Ullrich Steiner, Jovana V. Milić   +9 more
wiley   +1 more source

Fundamentos y analogías para entender mejor la espectroscopía de RMN

Educación Química, 2022
La Resonancia Magnética Nuclear (RMN) es una técnica espectroscópica utilizada en diversas áreas de las ciencias químicas, biológicas y de la salud.
Mariel Anahí García González, Ernesto Sánchez Mendonza, Noemí Herminia Waksman Minsky, Alma L Saucedo   +3 more
doaj   +1 more source