An information-capture device includes a video-capture device, a pre-processing module, an image-processing module, and a text generation module. User attributes like a geographic location are obtained and news sources preferred by other users with attributes similar to those of a requesting user are identified. In another embodiment, the reaction chamber andor filtrationseparation media include non-catalytic or catalytic metals to simultaneously or separately induce on-substrate synthesis and growth of carbon nanomaterials.