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Problem Addressed

Carbon-based nanomaterials, such as carbon nanotubes and graphene, are electrically conductive materials that are ideal for chemical sensing. Sensors can be fabricated in a solvent-free, portable manner via deposition of conductive carbon nanostructures using mechanical abrasion of compressed carbon-based composites on a variety of surfaces. However, the size, thickness and distribution of the resulting conductive carbon nanostructures deposited on substrates is difficult to control and limited by the features of the substrate (e.g. surface roughness and distribution of cellulose fibers on the surface of paper).