The proposed project aims to develop materials and design a (bio)sensory platform that uses the advantages of newly discovered materials: laser-induced graphene (LIG) structures, engraved on flexible and organic carbon substrates and other 3D printed carbon materials. As part of the project, in particular, material research will be carried out to understand the mechanism and conditions of the formation of conduction paths and structural inhomogeneities in nanometric additive techniques (inkjet printing and laser-induced graphene modification). The second main goal is the development of impedance monitoring techniques, which, combined with advanced statistical analysis tools, will allow for increase in selectivity and specificity of developed (bio)sensors. The added value of the project will be work on multi-electrode systems, each of which will constitute an individually functionalized nanosensor of a specific biomarker of a selected pathogen (enterohematorrhagic bacterium E.coli). This approach will significantly reduce false positive and false negative tests on the designed sensors. The project will contribute to the expansion of the laboratories of the Department of Electrochemistry and Surface Chemistry (WFTIMS) and the Department of Metrology and Optoelectronics (WETI) of the Gdańsk University of Technology, and will result in numerous publications in journals included in Q1 of the Philadelphia list. At the same time, the project is carried out in cooperation with one of the leading European centers for nanotechnology and biochemical research - Karlsruhe Institute of Technology, research group of prof. Michael Hirtz. Thanks to the cooperation, know-how and an expanded workshop of nanoscopic tools (inkjet printing) will be acquired. The project will produce and improve materials of high application and implementation importance, which can be the basis for subsequent grant projects, patents and cooperation. New experimental tools and modeling procedures will be developed. The project fits closely into the topics implemented within the Center for Future Materials and BioTechMed, contributing to the development of the main research trends of GUT as part of the IDUB project.