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Janczak, Daniel
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Publications (7/7 displayed)
- 2023The Influence of the Matrix Selection and the Unification Process on the Key Parameters of the Conductive Graphene Layers on a Flexible Substratecitations
- 2021Investigation of Carbon-Based Composites for Elastic Heaters and Effects of Hot Pressing in Thermal Transfer Process on Thermal and Electrical Propertiescitations
- 2019Highly Conductive Carbon Nanotube-Thermoplastic Polyurethane Nanocomposite for Smart Clothing Applications and Beyondcitations
- 2017Graphene Nanoplatelets for Screen-Printed Nonenzymatic Voltammetric H2O2 Sensorscitations
- 2017Investigations of carbon nanotubes and polyacrylonitrile composites for flexible textronicscitations
- 2015Influence of electric field on separation and orientation of carbon nanotubes in spray coated layerscitations
- 2014Thick Film Polymer Composites with Graphene Nanoplatelets for Use in Printed Electronics citations
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article
Graphene Nanoplatelets for Screen-Printed Nonenzymatic Voltammetric H2O2 Sensors
Abstract
Five types of graphene nanoplatelets were used as the functional phase in polymer composites comprising electrodes for voltammetric sensors. Electrodes were fabricated on poly(ethylene terephthalate) foil by screen-printing technique and then examined for assessment of the electrochemically active area surface, presence of electrical charge, current density, sensitivity and selectivity for hydrogen peroxide—A common biomedical analyte. Concentrations of the analyte as well as other environmental factors (electrolytes concentrations, pH, interferents) were modelling biological conditions of human tear fluid. Nanoplatelets' geometric dimensions were found to affect charge transfer on the electrodes to a greater degree than development of the active surface. This resulted in high oxidation current density on the surface of graphene nanoplatelets with greatest diameter and lowest thickness, yielding high sensitivity (82.02 μA·mm–2·mM–1).