Chapter 5 - Membrane structure and function, after studying this chapter, you should be able to accomplish the following outcomes: Describe the structure of the plasma membrane and the diverse functions of the embedded proteins; describe what is meant by a semipermeable membrane; predict the effect of osmotic conditions on animal versus plant cells;...
Current Flow in an Electrochemical Cell:
Thermodynamic arguments permit the feasibility of overall cell reactions to be predicted, but give no information on rates. To understand the latter it is necessary to consider the effects on various parts of the cell of forcing the cell voltage to assume a value different from that of the equilibrium potential Eeq (V) or electromotive force (emf). In the example of Figure 1, the cell contains hydrochloric acid as aqueous electrolyte and it divides into two compartments by a semipermeable membrane.
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Regioregular polythiophene-based conductive copolymers with highly crystalline nanostructures are shown to hold considerable promise as
the active layer in volatile organic compound (VOC) chemresistor sensors. While the regioregular polythiophene polymer chain provides a
charge conduction path, its chemical sensing selectivity and sensitivity can be altered either by incorporating a second polymer to form a
block copolymer or by making a random copolymer of polythiophene with different alkyl side chains.