Carbon-supported gold nanoparticles (Au/C) are successfully decorated with monoor sub-monolayer palladium atoms with different Pd/Au atomic ratios by a chemically epitaxial seeded growth method. TEM, UV–vis spectrometry and XRD techniques are used to characterize the particle size, dispersion, palladium coverage on gold seeds and crystal structures of the prepared catalysts. Cyclic voltammetric...

Introduction Efficient delivery of rotigotine into the brain is crucial for obtaining maximum therapeutic efficacy for Parkinson's disease (PD). Therefore, in the present study, we prepared lactoferrin-modified rotigotine nanoparticles (Lf-R-NPs) and studied their biodistribution, pharmacodynamics, and neuroprotective effects following nose-to-brain delivery in the rat 6-hydroxydopamine model o...

Stable palladium nanoparticles were prepared by the passivation of palladium–carbon covalent linkages by the reduction of diazonium derivatives. The resulting particles were characterized by TEM, UV-vis, FTIR, and NMR measurements. Interestingly, in electrochemical studies of the electronic conductivity of the particle solid ensembles, Pd–biphenyl particles exhibited metallic temperature depend...

Abstract Carbon nanotubes have been covalently functionalized with catechol moieties through the formation of corresponding aryl radicals obtained by reacting 4‐aminocatechol isoamyl nitrite. The multiwalled carbon in turn used to immobilize Pd(II) ions on its surface forming catechol‐Pd complexes, which were reduced Pd nanoparticles (NPs). so‐obtained hybrid material has characterized means th...

Abstract Palladium (Pd) shows high activity in a variety of catalysis reactions that refer to the activation carbon-halogenation bond, and single-atom Pd catalysts have received significant attention as new technology. Nevertheless, there is huge knowledge gap regarding which sites could form highly reactive centers. It unclear whether are active this process or not. In study, we synthesized Pd...

Ultraviolet (UV) detection is an important index, as UV rays can cause skin diseases in humans. To enhance the performance of photodetectors, we fabricated palladium nanoparticles(Pd NPs) modified ZnO nanorods. The surface morphology observed by using transmission electron microscopy and microscopy. crystal structure analysed X-ray diffraction. optical property investigated photoluminescence sp...

Fe3O4 nanoparticles were synthesized in the presence of pepper extract as a capping agent via a hydrothermal method. Then palladium nanoparticles and Fe3O4-Pd nanocomposites were synthesized with the aid of pepper extract as a reducing agent. Vibrating Sample magnetometer illustrated that Fe3O4 nanoparticles have super paramagnetic behaviour. The photo catalytic behaviour of Fe3O4-Pd nanocompos...

There is concern about the possible toxicity of palladium nanoparticles (Pd-NP), as they are released in the environment through many applications. We previously studied the toxicity of Pd-NP at high concentrations; here we address the possible toxicity of Pd-NP at low, subtoxic doses. In particular, we have exposed normal human PBMC entering into the first in vitro mitotic division to Pd-NP an...

Highly monodisperse 5 nm Pd-Ni alloy nanoparticles (NPs) were prepared by the reduction of Pd(acac)(2)/Ni(acac)(2) mixtures with tert-butylamine-borane complex (TBAB) in the presence of oleic acid (OA) and oleylamine (OAm). Employing TBAB as an effective reductant and OA/OAm combination as an effective stabilizing agent is crucial to the formation of monodisperse Pd-Ni NPs. Experimental results...

The increasing technological applications of palladium nanoparticles (Pd-NPs) and their consequent enhancing release into the community and occupational environments, have raised public health concerns regarding possible adverse effects for exposed subjects, and particularly for workers chronically and highly exposed to these materials, whose toxico-kinetic and dynamic behavior remains to be fu...