Abstract: A mobile software application by which a user may publish, to a unique user profile associated with the user, time-limited image or video posts (“stories”), each story being associated with one or more items available for sale from the user (e.g., available for auction). One or more graphical user interfaces of the application enable mobile devices of further users to access the first user's story by displaying one or more images/videos in the story in conjunction with real-time information associated with the available item(s). These further users may use the GUI(s) to participate in the sale of the item(s), e.g., by placing bids, within the first user's story view. Each story published by the first user remains visible in the first user's story view for a limited duration of time, thereby making the seller's story view an accessible conduit for time-relevant information associated with the first user's items.

Abstract: Polymer electronics devices having reliable electrical contacts and methods of their fabrication are described. A surface of a conductive layer is modified, and a layer of polymer is formed on a modified surface of the conductive layer to create an electrical contact between the conductive layer and the layer of polymer. The electrical contact is created without adding an adhesion promoter. Modifying the surface of the conductive layer increases surface area of conductive layer and therefore improves polymer to conductive layer adhesion while preserving an original chemistry of the surface of the conductive layer. The modified surface of the conductive layer may be formed by mechanical roughening, chemical roughening, or both. The conductive layer forming the electrical contact to the polymer includes a noble metal. The polymer may be spin coated over the modified surface of the conductive layer.