64 posts

Rotating droplet as a new alternative for small volume electrochemical measurements

A paper from Magda’s work with a rotating droplet as alternative to rotating disc electrodes for electrochemical measurements in small volumes was just accepted in Electrochemistry Communications. This is a development of an idea from Limoges’s group in Paris, where they used a rotating disc electrode (RDE) to spin a […]

H2O2 Generation at a Carbon-Paste Electrode with Decamethylferrocene in 2-Nitrophenyloctyl Ether as a Binder: Catalytic Effect of MoS2 Particles

Another paper in the series on H2O2 generation at liquid|liquid interfaces appeared in ChemElectroChem a while back. Wojtek is a co-author together with members of the Opallo-group and Hubert Girault from Lausanne. In the paper we describe the use of a carbon paste electrode (CPE) for generation of H2O2 at […]

Compatibility of organic solvents for electrochemical measurements in PDMS-based microfluidic devices

We just had a new paper published in Microfluidics and Nanofluidics concerning the compatibility of some organic solvents with PDMS-based microfluidic devices. In a well-known study (cited ~1600 times) the Whitesides-group argued that how much PDMS swells in a solvent is a good indication of how compatible that solvent is with […]

Flow in a Paper-based Bioactive Channel – Study on Electrochemical Detection of Glucose and Uric Acid

The last remaining publication from Emilia’s PhD studies just appeared in Electroanalysis. Immobilization of enzymes can significantly prolong the stability of an assay, but on the other hand depending on the method chosen, it can also influence the porous structure of the paper and provide additional charge. Having this in mind we […]

Integrated, paper-based potentiometric electronic tongue for the analysis of beer and wine

A new publication in Analytica Chimica Acta appeared describing paper-based discrimination of beer and wine samples using an electronic tongue. Although Emilia’s affiliation is still from the Brazilian institution UNICAMP it is of course still worth mentioning. This is the second article describing paper-based electronic tongues with electrochemical detection; the […]

Development of complex-shaped liver multicellular spheroids as a human-based model for nanoparticle toxicity assessment in vitro

An article was just accepted in the journal Toxicology and Applied Pharmacology where Martin is one of the co-authors. The topic is the creation of 3D cell cultures in different matrices that could be used for assessing nanoparticle toxicity and compared to 2d cell cultures. The matrices used were three […]

Hierarchical 3-dimensional nickel–iron nanosheet arrays on carbon fiber paper as a novel electrode for non-enzymatic glucose sensing

A paper with Martin as one of the corresponding authors was just published in Nanoscale describing the formation of a new electrode material of nickel-iron nanosheets on a carbon paper. The material is made by hydrothermal decomposition of FeCl2 and  of Ni(NO3)2 in an autoclave vessel. Depending on the ratio of […]

Tailored gold nanostructure arrays as catalysts for oxygen reduction in alkaline media and single molecule SERS platform

Martin had some part in a new publication in Nanoscale where electrorefining of gold from an ultramicroelectrode was used to deposit nanoparticles on an ITO electode. By changing the deposition conditions the structures could be tailored to some degree for efficient oxygen reduction or to be used a relatively well […]