NOVELTY - The method involves arranging a substrate between the provided electrodes. A voltage is supplied to electrodes to create a plasma discharge. The substrate and/or working electrodes (6a,6b) are moved such that linearly displaced relative to each other along an axis of linear displacement (80) during movement. The working electrode is arranged relative to axis of linear displacement such that linear movement causes a first section (61) of substrate to have a greater residence time between the electrodes during linear displacement than a second section (62) of substrate.    USE - Method of modifying substrate using plasma. Uses included but are limited to surface technology such as the nanotechnology sector, e.g. in carbon nanomaterials, biosensors, fuel cells, batteries, nanochemistry, photocatalysis, solar cells, nanoelectronics, and nanoparticles for drug delivery and in industries such as automotive, aerospace, missile, power, electronic, biomedical, textile, petroleum, petrochemical, chemical, steel, cement, machine tools and construction industries.    ADVANTAGE - The method enhances the efficiency in the production of even more variations of characteristics and functionality on the substrate surface through the plasma process, particularly when used in combination with the linearly moving substrate and/or electrodes. By providing a high voltage plasma and varying substrate transit speed through the plasma region, varying gas concentration in the plasma region or varying gas flow control across the plasma region, controlled and repeatable changes in surface chemistry, topography, morphology of the substrate is provided. The method allows for providing a large scale plasma process that is capable of producing time dependent labels in significant numbers and rapidly.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a system for modifying a substrate using plasma.    DESCRIPTION OF DRAWING(S) - The drawing shows a top view of an electrode arrangement.    Working electrodes (6a,6b)    First end (40)    First section of substrate (61)    Second section of substrate (62)    Axis of linear displacement (80)