Universidad Nacional Autonoma de Mexico

PLGA and PLGA-PEG nanoparticles loaded with curcumin and their effect on aflatoxin B1 in vitro

Rivero-Gonzalez A., Ramirez-Noguera P., Universidad Nacional Autonoma de Mexico, MX

The aim of this study was to evaluate the effect of nanoparticles prepared with polylactic-co-glycolic acid (PLGA) and PLGA with polyethylene glycol (PLGA-PEG) loaded with curcumin in human hepatocytes exposed to aflatoxin B1 in vitro. [...]

Green Chemistry of Carbon Nanomaterials

Basiuk E.V., Basiuk V.A., Basiuk E.V., Basiuk V.A., Universidad Nacional Autonoma de Mexico, MX

The global trend of searching for ecologically friendly, ‘green’ chemical processes manifested itself in the chemistry of carbon nanomaterials, in particular, in the development of techniques for their chemical (both covalent and noncovalent) modification. Our [...]

Green Chemistry of Carbon Nanomaterials

Basiuk E.V., Basiuk V.A., Basiuk E.V., Basiuk V.A., Universidad Nacional Autonoma de Mexico, MX

The global trend of searching for ecologically friendly, ‘green’ chemical processes manifested itself in the chemistry of carbon nanomaterials, in particular, in the development of techniques for their chemical (both covalent and noncovalent) modification. Our [...]

Synthesis of nanocrystalline cubic ZrO2:Mn2+ phosphors: Structural and luminescent properties

Fernández-Osorio A., Ramos-Olmos L., Julian C.F., Universidad Nacional Autonoma de Mexico, MX

Nanocrystalline cubic zirconia doped with manganese, solid solutions of Zr1-xMnxO2-x/2 (x=0, 0.1, 0.2 and 0.4), were prepared by the sol-gel method. The Rietveld refinement of the X-ray powder diffraction (XRD) profile of the samples confirms [...]

Synthesis of nanocrystalline (Zn1-xCox)Al2O4 solid solution: structural and optical properties

Fernández-Osorio A., Hernández- Mendoza D., Pineda-Villanueva E., Universidad Nacional Autonoma de Mexico, MX

New inorganic pink pigments based on nanocrystalline (Zn1-xCox)Al2O4 solid solution, were prepared using the hydrothermal method, obtaining nanoparticles below 8 nm. The spinel ZnAl2O4 was chosen as host hue to introduce Co(II) ions, because zinc [...]

Free- standing SnO2 nanoparticles synthesized by hydrothermal route

Fernández-Osorio A., Vázquez-Olmos A., Sato-Berru R., Casas-Gutiérrez D., Universidad Nacional Autonoma de Mexico, MX

Tin oxide with rutile-type crystalline structure is a n-type wide band gap (3.5 eV) semiconductor that presents a proper combination of chemical, electronic and optical properties that make it advantageous in several applications. Due to [...]

Enantiospecific adsorption of chiral molecules on chiral Au nanoparticles

Garzon I.L., Lopez-Lozano X., Perez L.A., Universidad Nacional Autonoma de Mexico, MX

Enantioselectivity in gold clusters is investigated by studying the adsorption of a chiral amino acid (cysteine) on a chiral Au55 cluster using density functional calculations. The highest adsorption energies were found when the amino and [...]

Morphology effect dependent on the synthesis method of KxIr1-xO2 system

Ramírez E., Chavira E., Baños L., Soto Guzmán A.B., Guzmán J., Flores C., Universidad Nacional Autonoma de Mexico, MX

We focus our attention on the synthesis of the solid solution of KxIr1-xO2 with x = 0.25. This solid solution was obtained by the solid-state reaction and sol-gel method using IrO2 and K2CO3 as starting [...]

Self-Assembly of Tetraazamacrocyclic Compounds on Single-Walled Carbon Nanotubes: Experimental and Theoretical Studies

Basiuk E.V., Basiuk V.A., Basiuk E.V., Basiuk V.A., Rybak-Akimova E.V., Acosta-Najarro D., Puente-Lee I., Saniger J.M., Universidad Nacional Autonoma de Mexico, MX

All the existing methods of chemical modification of carbon nanotubes (CNTs) can be divided in two groups, depending on whether functionalizing moieties are introduced onto the nanotube tips or sidewalls. The latter approach offers wider [...]

The Two-Layer ONIOM Technique in the Studies of Chemical Reactions on Carbon Nanotube Tips

Basiuk E.V., Basiuk V.A., Basiuk E.V., Basiuk V.A., Universidad Nacional Autonoma de Mexico, MX

In continuation of our combined quantum mechanics/molecular mechanics (QM/MM) studies of selective amidation (reaction 1) and esterification (reaction 2) of monocarboxy-substituted tips of zigzag and armchair single-walled carbon nanotube (SWNTs), we studied theoretically the interaction [...]