Electrochemical immunosensing

E. Zacco, M.I. Pividori, X. Llopis, M. del Valle, and S. Alegret, Renewable Protein A modified graphite-epoxy composite for electrochemical immunosensing. J. Immunol. Methods 286, 35—46 (2004). 

Sharma, P., et al., Bio-functionalized graphene-graphene oxide nanocomposite based electrochemical immunosensing. Biosensors and Bioelectronics, 2013. 39(0) p. 99-105. 

Recently, some papers have started to highlight the performance of PSf-(bio) composites-CNT as electrode material for electrochemical immunosensing [112]. The authors have highlighted the attractive combination of PSf/CNTplus disposable screen-printed electrodes for monitoring the errzymatic activity of horseradish peroxidase and the RIgG inmunosensor response. In both cases an enhanced electroanalytical response was demonstrated in comparison with standard graph-ite/PSf composites. 

Electrochemical immunosensing of food residues by affinity biosensors and magneto sensors... 

Electrochemical immunosensing of food residues 22.1.2 Pesticides and drug residues detection methods... 

The competitive electrochemical immunosensing strategy can easily reach the required LOD for potable water orange juice (MRL 0.1 pgL ) established by the European Community directives with very simple sample pretreatments. The orange juice samples spiked with atrazine was first diluted five times with PBST pH 7.5 buffer and then filtered through 0.22 pm filter before measurement. The features of these approaches are described in detail in the following section. 

GEC based platforms are useful and versatile transducer materials for electrochemical immunosensing of food residues. Graphite-epoxy composites (GEC) and biocomposites (GEB), widely studied by our research group, show excellent transducing features for the detection of atrazine and sulfo-drugs based on electrochemical immunosensing. 

The competitive electrochemical immunosensing strategy can easily reach the required LOD for potable water orange juice (MRL 0.1 pgL-1) established by the European Community directives with very simple sample pretreatments. 

Salvaraju, T., Das, J., Han, S. W., Yang, H. (2008). Ultrasensitive electrochemical immunosensing using magnetic beads and gold nanocatalysts. Biosensors and Bioelectron. 23 932-938. 

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