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Membrane Potentials: The voltage differences across a membrane. For cellular membranes they are computed by subtracting the voltage measured outside the membrane from the voltage measured inside the membrane. They result from differences of inside versus outside concentration of potassium, sodium, chloride, and other ions across cells' or Organelles membranes. For excitable cells, the resting membrane potentials range between -30 and -100 millivolts. Physical, chemical, or electrical stimuli can make a membrane potential more negative (hyperpolarization), or less negative (depolarization).

Rapid Neuronal Differentiation of Induced Pluripotent Stem Cells for Measuring Network Activity on Micro-electrode Arrays

1Department of Cognitive Neurosciences, Radboudumc, 2Donders Institute for Brain, Cognition and Behaviour, Radboud University, 3Department of Human Genetics, Radboudumc, 4Department of Molecular Developmental Biology, Radboud University

JoVE 54900


 Developmental Biology

The Neuromuscular Junction: Measuring Synapse Size, Fragmentation and Changes in Synaptic Protein Density Using Confocal Fluorescence Microscopy

1Physiology and Bosch Institute, University of Sydney, 2Motor Neuron Disease Research Group, Australian School of Advanced Medicine, Macquarie University, 3Advanced Microscopy Facility, Bosch Institute, University of Sydney

JoVE 52220


 Neuroscience

Experimental Approach for Determining Semiconductor/liquid Junction Energetics by Operando Ambient-Pressure X-ray Photoelectron Spectroscopy

1Division of Chemistry and Chemical Engineering, California Institute of Technology, 2Joint Center for Artificial Photosynthesis, California Institute of Technology, 3Advanced Light Source, Lawrence Berkeley National Laboratory, 4Beckman Institute, California Institute of Technology

Video Coming Soon

JoVE 54129


 JoVE In-Press

Manual Isolation of Adipose-derived Stem Cells from Human Lipoaspirates

1Cytori Therapeutics Inc, 2Division of Cardiac Surgery, Department of Surgery, David Geffen School of Medicine at UCLA, 3Division of Plastic and Reconstructive Surgery, Department of Surgery, David Geffen School of Medicine at UCLA, 4Department of Orthopedic Surgery, David Geffen School of Medicine at UCLA, 5Regenerative Bioengineering and Repair Laboratory, David Geffen School of Medicine at UCLA

JoVE 50585


 Biology

Vibrodissociation of Neurons from Rodent Brain Slices to Study Synaptic Transmission and Image Presynaptic Terminals

1Section on Synaptic Pharmacology/Laboratory for Integrative Neuroscience, National Institutes of Health/National Institute on Alcohol Abuse and Alcoholism, 2Department of Electronics Engineering, Ewha Womans University, 3Section on Transmitter Signaling/Laboratory of Molecular Physiology, National Institutes of Health/National Institute on Alcohol Abuse and Alcoholism

JoVE 2752


 Neuroscience

The Use of Magnetic Resonance Spectroscopy as a Tool for the Measurement of Bi-hemispheric Transcranial Electric Stimulation Effects on Primary Motor Cortex Metabolism

1Department of Psychology, University of Montréal, 2Montreal Neurological Institute, McGill University, 3Center for Magnetic Resonance Research and Department of Radiology, University of Minnesota

JoVE 51631


 Neuroscience

Optogenetic Stimulation of the Auditory Nerve

1InnerEarLab, Department of Otolaryngology, University Medical Center Goettingen, 2Bernstein Focus for Neurotechnology, University of Goettingen, 3Auditory Systems Physiology Group, Department of Otolaryngology, University Medical Center Goettingen, 4Center for Nanoscale Microscopy and Molecular Physiology of the Brain, University of Goettingen, 5Department of Chemical, Electronic, and Biomedical Engineering, University of Guanajuato

JoVE 52069


 Neuroscience

A Simple Stimulatory Device for Evoking Point-like Tactile Stimuli: A Searchlight for LFP to Spike Transitions

1Institute of Molecular Bioimaging and Physiology (IBFM), Department of Biomedicine, National Research Council, 2Institute of Biomedical Technologies (ITB), Department of Biomedicine, National Research Council, 3Faculty of Life Sciences, University of Manchester

JoVE 50941


 Neuroscience

A Surgical Procedure for the Administration of Drugs to the Inner Ear in a Non-Human Primate Common Marmoset (Callithrix jacchus)

1Division of Regenerative Medicine, Jikei University School of Medicine, 2Department of Otorhinolaryngology, Jikei University School of Medicine, 3Department of Otorhinolaryngology, Head and Neck Surgery, Keio University School of Medicine, 4Laboratory Animal Facilities, Jikei University School of Medicine

Video Coming Soon

JoVE 56574


 JoVE In-Press

Personalized Peptide Arrays for Detection of HLA Alloantibodies in Organ Transplantation

1Division of Nephrology and Hypertension, and the Center for Kidney Research and Therapeutics at the Feinberg Cardiovascular Research Institute, Northwestern University Feinberg School of Medicine, 2Surgery-Organ Transplantation, Northwestern University Feinberg School of Medicine, 3School of Biological Sciences and Medical Engineering, Southeast University

JoVE 56278


 Biochemistry

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