Publications by authors named "A Ortega-Guerrero"
Article Synopsis
- Mesoporous metal-organic frameworks (MOFs) are promising for drug delivery, but their stability in water limits their use, with some exceptions like the PCN-series, which have shown durability in various pH levels.
- This study investigates the stability of PCN-333 nanoparticles (nPCN) in different solvents and reveals that nPCN actually deteriorates in water, losing its octahedral shape and porosity within just 2 hours.
- Through molecular dynamics simulations, the research uncovers that the breakdown of PCN-333 in water is caused by hydrolysis, where water molecules disrupt the metal-ligand bonds that hold the structure together.
Article Synopsis
- Phenalenyl (CH) is a type of nanographene that features a unique open-shell structure with spin-1/2 properties, revealing interesting electrical behavior when studied through techniques like STM-IETS.
- Researchers have discovered that the exchange interactions in phenalenyl dimers can be adjusted by changing the angle between the two molecules, which can lead to different electronic properties.
- The study employs various theoretical approaches, including density functional theory, to explore ways to manipulate twisting in these dimers, potentially enabling control over magnetic couplings in carbon-based structures.
Pore topology and chemistry play crucial roles in the adsorption characteristics of metal-organic frameworks (MOFs). To deepen our understanding of the interactions between MOFs and CO during this process, we systematically investigate the adsorption properties of a group of pyrene-based MOFs. These MOFs feature Zn(II) as the metal ion and employ a pyrene-based ligand, specifically 1,3,6,8-tetrakis(-benzoic acid)pyrene (TBAPy).
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- Atomically precise graphene nanoribbons (GNRs) exhibit varied electronic properties based on their chemical structure, making them complex to study.
- Various GNRs have been created on metal surfaces, but their interaction with the substrate complicates the understanding of their intrinsic electronic properties.
- The introduction of a dielectric gold chloride layer beneath the GNRs helps to electronically separate them from the metal, allowing for improved investigation of their electronic characteristics, particularly in a hole-doped state.
The heat capacity of a material is a fundamental property of great practical importance. For example, in a carbon capture process, the heat required to regenerate a solid sorbent is directly related to the heat capacity of the material. However, for most materials suitable for carbon capture applications, the heat capacity is not known, and thus the standard procedure is to assume the same value for all materials.
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