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Current fluctuations in pure lipid membranes have been shown to occur under the influence of transmembrane electric fields (electroporation) as well as a result from structural rearrangements of the lipid bilayer during phase transition (soft perforation). We demonstrate that the ion permeability during lipid phase transition exhibits the same qualitative(More)
There is a significant demand for small, portable, and inexpensive analytical devices, which can be used in a wide range of sensing applications (e.g., food monitoring, detection of chemical, biological poisoning agents, environmental monitoring, medical diagnostics, military defense, etc.). Sensors based on organic semiconducting polymers, which are(More)
Here, we describe the biocompatibility of solution-processable organic semiconducting polymers. Low-operating voltage organic thin-film transistor (OTFT) devices have been fabricated, which can be used as sensors in electrolytes. The devices are based on regioregular poly(3hexylthiophene) (P3HT), being both a reasonably conductive and optically active(More)
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