Biosensor to indicate hybridisation and process to make biosensor with diamond coating with embedded trap molecules over electrodes

A biosensor has a substrate with a surface incorporating one or more electrodes under a carbon cover incorporating a trap module. The sensor forms part of a diagnostic electronic circuit determining the electrode capacity. The carbon layer is primarily diamond that insulates and renders the electrode passive. The carbon layer structure forms no electrical link between the electrodes. The electrodes are fabricated of electrically-conducting carbon. Also claimed is a manufacturing process for the sensor in a hydrogen atmosphere pressurised to between 1 and 4 hectopascals and at a temperature of between 600 and 1000[deg]C, and in the presence of a hydrocarbon gas, oxygen plasma and/or acid. Ein Biosensor weist ein Trägersubstrat mit einer Oberfläche und zumindest eine Elektrode auf, welche an der Oberfläche des Trägersubstrats ausgebildet ist. Ferner ist eine Deckschicht, welche als Material im wesentlichen Kohlenstoff aufweist, zumindest auf der Elektrode ausgebildet.