Universidad de Guadalajara 2 articles published in JoVE Biology Contact Mode Atomic Force Microscopy as a Rapid Technique for Morphological Observation and Bacterial Cell Damage Analysis Héctor Pérez Ladrón de Guevara1, Virginia Villa-Cruz1, Rita Patakfalvi1, Lily Xochilt Zelaya-Molina2, Ramiro Muñiz-Diaz1 1Centro Universitario de los Lagos, Universidad de Guadalajara, 2Centro Nacional de Recursos Genéticos, Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias Here, we present the application of atomic force microscopy (AFM) as a simple and fast method for bacterial characterization and analyze details such as the bacterial size and shape, bacterial culture biofilms, and the activity of nanoparticles as bactericides. Neuroscience Assessment of Audio-Tactile Sensory Substitution Training in Participants with Profound Deafness Using the Event-Related Potential Technique Vanessa D. Ruiz-Stovel1, Andrés A. González-Garrido1, Fabiola R. Gómez-Velázquez1, Geisa B. Gallardo-Moreno1, Erwin R. Villuendas-González2, Carlos A. Soto-Nava1 1Instituto de Neurociencias, Universidad de Guadalajara, 2Universidad Michoacana de San Nicolás Hidalgo This protocol is designed to explore underlying learning-related electrophysiological changes in subjects with profound deafness after a short training period in audio-tactile sensory substitution by applying the event-related potential technique.