This　work　presents　an　aptamer-based,　highly　sensitive　and　specific　sensor　for　atto-　to　femtomolar　level　detection　of　bisphenol　A　(BPA).　Because　of　its　widespread　use　in　numerous　products,　BPA　enters　surface　water　from　effluent　discharges　during　its　manufacture,　use,　and　from　waste　landfill　sites　throughout　the　world.　On-site　measurement　of　BPA　concentrations　in　water　is　important　for　evaluating　compliance　with　water　quality　standards　or　environmental　risk　levels　of　the　harmful　compound　in　the　environment.　The　sensor　in　this　work　is　porous,　conducting,　interdigitated　electrodes　that　are　formed　by　laser-induced　carbonization　of　flexible　polyimide　sheets.　BPA-specific　aptamer　is　immobilized　on　the　electrodes　as　the　probe,　and　its　binding　with　BPA　at　the　electrode　surface　is　detected　by　capacitive　sensing.　The　binding　process　is　aided　by　ac　electroosmotic　effect　that　accelerates　the　transport　of　BPA　molecules　to　the　nanoporous　graphene-like　structured　electrodes.　The　sensor　achieved　a　limit　of　detection　of　58.28　aM　with　a　response　time　of　20　s.　The　sensor　is　further　applied　for　recovery　analysis　of　BPA　spiked　in　surface　water.　This　work　provides　an　affordable　platform　for　highly　sensitive,　real　time,　and　field-deployable　BPA　surveillance　critical　to　the　evaluation　of　the　ecological　impact　of　BPA　exposure.