Strategies to optimize biosensors based on impedance spectroscopy - Moraes, Marli L.; Rodrigues Filho, Ubirajara Pereira; Riul Junior, Antônio; Ferreira, Marystela; Gomes, Henrique L.; Oliveira Junior, Osvaldo Novais de (International Conference on Science and Technology of Synthetic Metals - ICSM, 2008)