Polyimide adhesive tapes as a versatile and disposable substrate to produce CO2 laser-induced carbon sensors for batch and microfluidic analysis

•A scalable and automated method to fabricate electrochemical sensors.•CO2 laser source generates carbon conductive tracks onto Kapton tapes.•Sensors can be made with different geometries and sizes.•Disposable, versatile, and miniaturized devices for field analyses.•Portable microfluidic platforms are created by integrating paper with the sensors.