Publications
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Covalent immobilization of delipidated human serum albumin on poly(pyrrole-2-carboxylic) acid film for the impedimetric detection of perfluorooctanoic acid University of Antwerp
The immobilization of biomolecules at screen printed electrodes for biosensing applications is still an open challenge. To enrich the toolbox of bioelectrochemists, graphite screen printed electrodes (G-SPE) were modified with an electropolymerized film of pyrrole-2-carboxilic acid (Py-2-COOH), a pyrrole derivative rich in carboxylic acid functional groups. These functionalities are suitable for the covalent immobilization of biomolecular ...
Plant microbial fuel cells from the perspective of photovoltaics: Efficiency, power, and applications Hasselt University
The plant microbial fuel cell is a fascinating technology that combines plants and bacteria to produce electricity. As sunlight is converted into electric power, plant microbial fuel cells can be compared to photovoltaics on various levels. To investigate to what extent this comparison goes up, a rough upper limit for the energy conversion efficiency of plant microbial fuel cells was calculated and compared to various photovoltaic classes. By ...
The organo-metal-like nature of long-range conduction in cable bacteria University of Antwerp
Cable bacteria are filamentous, multicellular microorganisms that display an exceptional form of biological electron transport across centimeter-scale distances. Currents are guided through a network of nickel-containing protein fibers within the cell envelope. Still, the mechanism of long-range conduction remains unresolved. Here, we characterize the conductance of the fiber network under dry and wet, physiologically relevant, conditions. Our ...
Development of an electrochemiluminescent oligonucleotide-based assay for the quantification of prostate cancer associated miR-141-3p in human serum University of Antwerp
MicroRNAs (miRNAs) are small oligonucleotides (18–25 bases), biologically relevant for epigenetic regulation of key processes, particularly in association with cancer. Research effort has therefore been directed towards the monitoring and detection of miRNAs to progress (early) cancer diagnoses. Traditional detection strategies for miRNAs are expensive, with a lengthy time-to-result. In this study we develop an oligonucleotide-based assay using ...
Haem-mediated albumin biosensing University of Antwerp
The haem group is a promising redox probe for the design of albumin-based voltammetric sensors. Among the endogenous ligands carried by human serum albumin (hSA), haem is characterised by a reversible redox behaviour and its binding kinetics strongly depend on hSA’s conformation, which, in turn, depends on the presence of other ligands. In this work, the potential applicability of haem, especially hemin, as a redox probe was first tested in a ...
Surface characterization of a cross-linked cytochrome c film on cysteamine-modified gold electrodes Ghent University University of Antwerp
Electrical current as a driver for microbial production processes Ghent University
The electrochemistry of a gelatin modified gold electrode Ghent University University of Antwerp
This paper discusses the electrochemical behaviour of gelatin coated gold electrodes in physiological pH conditions in a potential window -1.5 till 1.0 V vs SCE by performing cyclic voltammetry. A comparison is made between gelatin A and gelatin B, which have respectively a positive and a negative net charge at physiological pH. The deposition of gelatin onto the gold surface is confirmed by means of attenuated total reflection-infrared (ATR-IR) ...