Correction to: Photoelectrochemical sensing of tannic acid based on the use of TiO sensitized with 5-methylphenazinium methosulfate and carboxy-functionalized CdTe quantum dots.

The published version of this article, unfortunately, contains an error in that Fig. 2 shows the same study as Fig. 3.

Photoelectrochemical sensing of tannic acid based on the use of TiO sensitized with 5-methylphenazinium methosulfate and carboxy-functionalized CdTe quantum dots.

The article describes a method for determination of tannic acid in extracts of medicinal plants. Tannic acid (TA) is an antioxidant and has anticancer and antimicrobial properties. Titanium dioxide nanoparticles (TiO) were co-sensitized with 5-methylphenazinium methosulfate (PMS) and carboxy-functionalized cadmium telluride quantum dots (CdTe QDs), and immobilized on a fluorine-doped tin oxide electrode.

Layer-by-layer assembled films of multi-walled carbon nanotubes with chitosan and cellulose nanocrystals.

Chitosan solutions and cellulose nanocrystal suspensions were used to produce highly stable aqueous dispersions of multi-walled carbon nanotubes (MWCNTs). The different MWCNT dispersions, presenting positive and negative charges, were used to prepare multilayered hybrid thin films through electrostatic layer-by-layer (LBL) self-assembly. The MWCNTs are well dispersed and homogeneously distributed on each layer of chitosan and cellulose nanocrystals of the films.