Anticancer palladium-doped magnesia nanoparticles: synthesis, characterization, and in vitro study

Aim: To prepare, physicochemically characterize and determine the anticancer effects of palladium-doped magnesia (Pd/MgO) nanoparticles. Materials & methods: Pd/MgO nanoparticles were prepared by the co-precipitation method from the aqueous solution of Mg(NO3)2.6H2O using K2CO3 and the impregnation of MgO into palladium acetylacetonate. Results: Pd/MgO nanoparticles were between 47 and 70 nm in size, cuboid in shape, and tended to form aggregates. Nanoparticles were more antiproliferative toward cancer than the normal cells. In cancer cells, Pd/MgO nanoparticles induced apoptosis by increasing caspase activities and stimulating cytochrome C release. The anticancer effects of Pd/MgO nanoparticles were accentuated by the upregulation of Bax and p53 and downregulation of Bcl-2 protein expressions. Conclusion: Pd/MgO nanoparticles have potential to be developed as an anticancer compound.

Synthesis and electrocatalytic properties for oxygen reduction of Pd4Fe nanoflowers

Hierarchical Pd4Fe alloy nanoflowers with nanosheet petals mainly exposed the (111) crystal plane were prepared by reducing palladium acetylacetonate with Fe(CO)5 and oleylamine. The novel nanomaterials may be emerging materials in electrochemical field by virtue of the advantage of hierarchical architectures and 2D alloy nanosheets.

Palladium nanoparticle formation processes in fluoropolymers by thermal decomposition of organometallic precursors

Palladium nanoparticles were synthesized directly in solid fluoropolymer films by thermal decomposition of a palladium acetylacetonate precursor molecularly infused in the fluoropolymer matrix.

Core - Shell Pd/Co Nanocrystals

A method for the preparation of bimetallic Pd/Co nanoparticles with a core–shell structure is presented. The process involves synthesis of a pure Pd seed colloid using thermal decomposition of palladium acetylacetonate, Pd(acac)2. Reduction of cobalt acetate using a polyalcohol in the presence of the Pd seeds allows the formation of Pd-core/Co-shell nanocrystals. Transmission electron microscopy (TEM), energy-dispersive X-ray spectrometry (EDX), and superconducting quantum interference (SQUID) magnetometry were used to characterize the bimetallic system.

Magnetic Properties and Fabrication of Monodisperse FePd Nanoparticles

The combination of 1-adamantanecarboxylic acid and tri-alkylphosphine was applied to produce monodisperse FePd nanoparticles by the polyol reduction of palladium acetylacetonate and thermally decomposition of iron pentacarbonyl. Images of high resolution transmission electron microscopy (TEM) and X-ray diffraction (XRD) data indicate a highly monodisperse and crystalline nature of the FePd nanoparticles. Magnetic studies performed by Quantum Design SQUID magnetometer show that FePd (16nm) nanoparticles are superparamagnetic at room temperature.