Multi-walled carbon nanotubes decorated with palladium nanoparticles as a novel platform for electrocatalytic sensing applications

Abstract

Sensitive detection of glucose using a glassy carbon electrode modified with glucose oxidase and multi-walled carbon nanotubes decorated with palladium nanoparticles.

Fabrication of a facile electrochemical biosensor for hydrogen peroxide using efficient catalysis of hemoglobin on the porous Pd@Fe3O4-MWCNT nanocomposite

“…On the other hand, Pd NPs are of great interest due to their extensive properties such as large specificsurface area, strong adsorption ability and high conductivity. Pd NPs can interact with some biomolecules and act as an inter-mediator to immobilize biomaterials to efficiently retain its activity(Baghayeri et al, 2014). The obtained peak currents from immobilized Hb on the Pd@Fe 3 O 4 -MWCNT were much larger than those of the Hb-Fe 3 O 4 -MWCNT/GCE and Hb-MWCNT/GCE, indicating that Pd nanoparticles in the nanocomposite film could increase the adsorption ability for Hb and favor the orientation of Hb.…”

“…In addition, the surface functionality of the carbon support can exert a unique synergistic effect for final special purpose. Our earlier study showed that covalently functionalized MWCNT with metformin could significantly enhance adhesion of Pd NPs on functionalized MWCNT surface (Baghayeri et al, 2014). The mentioned electrode was used for glucose determination as an enzymatic glucose sensor.…”

A highly efficient urea detection using flower-like zinc oxide nanostructures

“…Amongst various matrices, nanostructured metal oxides are extensively exploited due to their unique properties including high surface to volume ratio, good stability, favourable orientation for the immobilization of specific enzyme etc. [24][25][26][27]. Recently, ZnO nanostructures have been utilized as an efficient matrix in the field of biosensing for detecting a number of biomolecules due to its good electron communication feature, wide band-gap, high chemical stability, good biocompatibility and most importantly high isoelectric point (IEP~9.5) which is important for the immobilization of enzymes having low IEP such as urease (~ 4.0) by physical adsorption technique [21,29,30].…”

Exfoliated Pd decorated graphene oxide nanosheets (PdNP–GO/P123): Non-toxic, ligandless and recyclable in greener Hiyama cross-coupling reaction

“…Designing a new nanocatalysts with new Pd nanoparticles decoration requires a different support, surface functionality, or different conditions [1][2][3][4][5][6][7][8]. Pd based nanocatalysts are generally used in cross-coupling reactions such as Sonogashira, Suzuki-Miyaura [3], Mizoroki-Heck [9], Buchwald-Hartwig [10] and recently Hiyama [6].…”