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Use of amphiphilic triblock copolymers to direct the organization of polymerizing silica species has resulted in the preparation of well-ordered hexagonal mesoporous silica structures (SBA-15) with uniform pore sizes up ...

Se registraron los espectros infrarrojos y Raman de los complejos Cu(asp).2H20 y Cu(glu). 2H20 (asp = L-aspartato; glu = L-glutamato) y se los discute en base a sus estructuras cristalinas. Se realizan algunas comparacio...

Los tratamientos antipsoriásicos utilizando antralina presentan varias desventajas debido principalmente a las propiedades físico-químicas de ésta, a sus efectos adversos y a su formulación. La antralina es insolub...

New software, OLEX2 , has been developed for the determination, visualization and analysis of molecular crystal structures. The software has a portable mouse-driven workflow-oriented and fully comprehensive graphical use...

High entropy alloys (HEAs) are barely 12 years old. The field has stimulated new ideas and has inspired the exploration of the vast composition space offered by multi-principal element alloys (MPEAs). Here we present a c...

BACKGROUND: The Avogadro project has developed an advanced molecule editor and visualizer designed for cross-platform use in computational chemistry, molecular modeling, bioinformatics, materials science, and related are...

The Cambridge Structural Database (CSD) contains a complete record of all published organic and metal-organic small-molecule crystal structures. The database has been in operation for over 50 years and continues to be th...

Los hongos son fuente de alimento y medicina desde tiempos remotos. Por su valor nutracéutico y como fuente de nutricéuticos se han utilizado para mantener y mejorar la salud, preservar la juventud y promover la longev...

En esta tesis se analizan experimental y teóricamente distintos aspectos relacionados con procesos de relajación hacia el equilibrio y transiciones de fase en copol´ımeros bloque confinados en la nanoescala. Median...

Macromolecular X-ray crystallography is routinely applied to understand biological processes at a molecular level. However, significant time and effort are still required to solve and complete many of these structures be...

The energy costs associated with separating tightly bound excitons (photoinduced electron-hole pairs) and extracting free charges from highly disordered low-mobility networks represent fundamental losses for many low-cos...

Background Metal-organic frameworks (MOFs) are made by linking inorganic and organic units by strong bonds (reticular synthesis). The flexibility with which the constituents’ geometry, size, and functionality can be va...

The behaviour of Rogers's η parameter for enantiomorph-polarity estimation is examined theoretically and experimentally on simulated intensity data for seven well-assorted compounds. An alternative parameter x, based on...

Materias / palabras clave: atomic structures, chemical structures, crystal structures, nanostructures, mesostructures, microstructures; Science: Physics; Science: Chemistry

Materias / palabras clave: structure and properties of boundary surfaces, non-thermal activation methods of physical processes, quantum-sized structures and nanocrystals, material science of single crystal semiconductors, dielectrics, magnetic mat...