Flex Biohybrid Nanomembranes as a Platform for Multifunctional Sensors.

摘要

The main focus of current activities was on synthesis of new branched and peptide-containing molecules and further development of sophisticated freely standing membranes with micropatterned structure. We synthesized several new amphiplilic hyperbranched molecules and silver-binding peptide for further incorporation into membrane film. Freely-standing arrays of carbon nanotubes and gold nanoparticles were fabricated as well and their properties tested with micromechanical studies and Raman spectroscopy. Specifically we studied: flexible nanomembranes with encapsulated silver nanowires and semiconducting quantum dots display outstanding micromechanical, fluorescence, and conducting properties; quantum dot nanomembranes suspended over optical cavities show exceptional backlight-enhanced fluorescence intensity; multifunctional hyperbranched molecules control monodisperse silver nanoparticle monolayer growth at the air-water interface. Silver-reducing peptides were encapsulated into ultrathin polymer film and formation of silver nanoparticles was demonstrated.