Abstract

AbstractIntegrated electrochemical sensors in which plasma‐treated poly(lactic acid) (PLA) single material acts as both selective coating layer and electrochemical transductor (electrode) are prepared. Thus, three‐dimensional‐printed PLA specimens are transformed into electroresponsive material by applying a low‐pressure gas plasma treatment with three different gases: N2, O2, and air (79% N2 + 21% O2). Although all treated samples are able to electrochemically detect dopamine, the one derived from the treatment of low‐pressure O2 plasma exhibits the best performance as a sensor. Finally, cell adhesion assays demonstrate that the cell viability is higher for plasma‐treated PLA modified than for pristine PLA, making the former a promising, versatile, and powerful electroresponsive platform for diverse applications in biomedicine.

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