Compact microcubic structures platform based on self-assembly Prussian blue nanoparticles with highly tuneable conductivity

Welter Cantanhêde Silva, Maria Guix, Georgina Alarcón Angeles, Arben Merkoçi

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12 Citations (Scopus)

Abstract

Control of molecular and supramolecular properties is used to obtain a new advanced hybrid material based on Prussian blue nanoparticles (PB NPs). This hybrid material is obtained through a self-assembled Layer-by-Layer (LbL) approach combining the advantageous features of β-cyclodextrin (β-CD) polysaccharides, PB NPs and poly(allylamine hydrochloride) from electrostatic interaction between the deposited layers. Transmission electronic microscopy images suggested that PB NPs were protected by β-CD polysaccharides that prevent the aggregation phenomena. In addition, as confirmed by scanning electronic microscopy images, it was found that PB NPs are organized in microcubic supramolecular like structures via a mesoscale self-assembly process. Interestingly, the 3-bilayer {PAH/PB-CD} film exhibited a higher density of microcubic structures and a high electrochemical response with PB sites available for redox reactions at a supramolecular level. By utilizing fewer bilayers and consequently less material deposition, the formed {PAH/PB-CD} multilayer films of a tuneable conductivity can be expected to have interesting future applications for host-guest like dependent electrochemical biosensing designs. © 2010 the Owner Societies.
Original languageEnglish
Pages (from-to)15505-15511
JournalPhysical Chemistry Chemical Physics
Volume12
Issue number47
DOIs
Publication statusPublished - 21 Dec 2010

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    Cantanhêde Silva, W., Guix, M., Alarcón Angeles, G., & Merkoçi, A. (2010). Compact microcubic structures platform based on self-assembly Prussian blue nanoparticles with highly tuneable conductivity. Physical Chemistry Chemical Physics, 12(47), 15505-15511. https://doi.org/10.1039/c0cp00960a