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Item Study of the influence of the parameters of preparation of polymeric solutions obtaining nanofibers by electrospinning(Universidade Federal de Viçosa) Gonçalves, Luiz Fernando Pimenta; Botezini, Ariandy; Wittcinski, Carlos Omizollo; Santos, William Roberto da Silva; Gonçalves, Erika PetersonThe technique of electrospinning polymeric nanofibers has been emerging in the academic environment due to its well-parias and low operational, but the production of these nanofibers finds challenges regarding homogeneity and reproduction of obtained results. As propertiesof polymeric solutions are important for the determination of electrospinning parameters, such as the applied electrical voltage and injection rate. Seeking rheological behavior of polymeric solutions; which may be affected by the concentration of the polymeric solution and the preparation temperature of these solutions. This way this work studied the effect of the production temperature of polyacrylonitrile and methyl acrylate copolymer solutions and related them to the nanofibers produced at the same injection rates and electrical stresses. It was observed the inversely proportional behavior between the temperature of preparation of the solutions and the viscosity of the solutions at room temperature, which reflects in the integrity and homogeneity of thefibers formed, with the formation of pearls in the nanofibers produced to more viscous solutions.Item Correction: Barbosa et al. Production of rGO-Based Electrospinning Nanocomposites Incorporated in Recycled PET as an Alternative Dry Electrode. Polymers 2022, 14, 4288(MDPI) Barbosa, Michelle Chizzolini; Razzino, Claudia do Amaral; Stocco, Thiago Domingues; Santana, Moisés das Virgens; Ghosh, Anupama; Pereira, Luiz Fernando; Tierra-Criollo, Carlos Julio; Lobo, Anderson OliveiraItem Production of rGO-Based Electrospinning Nanocomposites Incorporated in Recycled PET as an Alternative Dry Electrode(MDPI) Barbosa, Michelle Chizzolini; Razzino, Claudia do Amaral; Stocco, Thiago Domingues; Santana, Moisés das Virgens; Ghosh, Anupama; Pereira, Luiz Fernando; Tierra-Criollo, Carlos Julio; Lobo, Anderson OliveiraIn this work, Coca-Cola® bottles were reused as a PET polymer (rPET) source to produce electrospun polymeric nanofibers. The nanofibers were electrospun from polymer solutions with different concentrations of reduced graphene oxide (rGO) incorporated for applications in somatosen-sory electrical stimulation. The rPET/rGO nanofiber mats were characterized by SEM, TEM, Raman, DSC, TGA, and DMA and the results showed that the incorporation of rGO in electrospun rPET fibers produced rPET/rGO composites. The rPET/rGO composites were then evaluated for possible appli- cation as dry electrodes. Moreover, with a preliminary test of numerous volunteers, the rPET/rGO dry electrode showed promising results. The rPET/rGO electrodes showed good performance and applicability to make dry electrodes, and these have applications as dry or wearable electrodes to produce electrochemical sensors.