ionic current การใช้

• Breaking the dimer stops the ionic current through the membrane.
• Therefore, the ionic current becomes asymmetric if the biasing voltage is reversed.
• Accordingly, any ionic current that hyperpolarizes a cell is called an inhibitory current.
• Thus, the ionic currents of the presynaptic action potential can directly stimulate the postsynaptic cell.
• In the case of ionic current across biological membranes, currents are measured from inside to outside.
• However, Alan Hodgkin in the 1930s showed that there is indeed an ionic current flowing in nerves.
• The ionic currents involved in the generation of fast action potentials may not contribute greatly to the averaged magnetoencephalographic signals
• The voltage will generate an ionic current between the two electrodes, flowing in and out of the micro-pipette.
• The detection principle is based on monitoring the ionic current passing through the nanopore as a voltage is applied across the membrane.
• The DNA sequence could be distinguished by the specific modulating effect of the four bases on the ionic current through the channel.
• In this case, the flow of positive charges passing through the channel is not favorable, resulting in a decrease in ionic current.
• Because the cells are dissociated from one another in suspension cultures, the ionic currents in a single cell can be measured with precision.
• This means that a cell that normally doesn't have electrical activity can grow ion channels in its membrane that will generate ionic currents.
• Magnetoencephalography ( MEG ) is an imaging modality that uses very sensitive magnetometers to measure the magnetic fields resulting from ionic currents flowing through neurons in the brain.
• Using experiments with the voltage clamp, Hodgkin and Andrew Huxley published 5 papers in the summer of 1952 describing how ionic currents give rise to the action potential.
• The R1 and R2 sites enable each base to be monitored twice as it moves through the pore, creating 16 different measurable ionic current values instead of 4.
• Since the conductance of ionic current flow is controlled by the gate voltage, using a material with high dielectric constant as the wall of the channel is desired.
• Apart from its direct it was also shown that N 2 O inhibits NMDA receptor-mediated activity and ionic currents and diminishes NMDA receptor-mediated excitotoxicity and neurodegeneration.
• Excessive, large-scale Hodgkin Huxley-type equations, describing changes in the flow of ionic currents across the membrane of a single cell or small groups of cells.
• Note that the ionic current will be zero if the membrane is impermeable ( g ion = 0 ) to the ion in question, regardless of the size of the driving force.