Mulko, LucindaLucindaMulkoHeffner, HermanHermanHeffnerAbel, Silvestre BongiovanniSilvestre BongiovanniAbelBaumann, RobertRobertBaumannMartín, DoloresDoloresMartínSchell, FredericFredericSchellLasagni, Andrés-FabiánAndrés-FabiánLasagni2023-01-092023-01-092022https://publica.fraunhofer.de/handle/publica/43066710.1021/acsapm.2c01485Direct laser interference patterning (DLIP) employing sub-picosecond IR irradiation allows for the ultrafast processing of polyaniline surfaces polymerized onto a poly(methyl methacrylate) substrate (PANI@PMMA) achieving excellent quality features. The patterning shows high levels of precision regarding control of width and height in micro/nanoarrays, giving customization to the surfaces. The electroactive property evaluation suggests the conductivity presents anisotropic characteristics following the patterning of the polymeric surfaces (RSL = 54 ± 5 kΩ sq-1 and RST = 1.7 ± 3 MΩ sq-1, longitudinal and transversal resistance modes respectively). The evidence is supported by electrostatic force microscopy measurements. These results indicate potential applicability in the biomedical field of nerve and myocardial tissue regeneration.enconducting polymersanisotropic conductivitymicro/nanoarrangementspolyanilinedirect laser interference patterningultrashort laser pulseslaser processingjournal article