Sodiumselective
Sodiumselective refers to a property of membranes or channels that allows sodium ions (Na+) to pass through more readily than other ions. This selectivity is crucial for many biological processes, particularly nerve impulse transmission and muscle contraction. In biological systems, the cell membrane contains sodium channels that are highly specific for Na+ ions. These channels can open and close in response to electrical or chemical signals, controlling the flow of sodium across the membrane. This flow of sodium ions down their electrochemical gradient is a key component of the action potential, a rapid change in the electrical potential across a cell membrane.
Beyond biology, the concept of sodium selectivity is also relevant in materials science and chemistry. Researchers