| 摘要 |
PROBLEM TO BE SOLVED: To provide a high gate function membrane having responsiveness to an environmental change of a soln. by molecular recognition and having a selective permeability of a solute and concn. controlling function and to provide a method for using the same. SOLUTION: This gate function membrane has receptor parts 1 which capture a specified solute K+ in accordance with concn. change in a gel 4 fixed in pores 5 in the membrane. The gel 4 swells and shrinks in accordance with the adsorption and desorption of the solute K+ by the receptor parts 1 to close and open the pores 5. Therefore, the gate function membrane can respond to a concn. change of the solute K+ by molecular recognition and has solute selectivity and concn. controlling function.
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