METHOD FOR OBTAINING OLIGONUCLEOTIDE

摘要

[PROBLEMS] To provide a method for obtaining an oligonucleotide, such as an RNA aptamer, having a high binding ability to a target substance in a simple manner and at high purity. [MEANS FOR SOLVING PROBLEMS] A method for obtaining an oligonucleotide, comprising the steps of: conducting the electrophoresis of a (nucleic acid molecule)/(target substance) complex composed of a nucleic acid molecule and a target substance; collecting the (nucleic acid molecule)/(target substance) complex; extracting the nucleic acid molecule from the (nucleic acid molecule)/(target substance) complex; and conducting the gene amplification of the nucleic acid molecule.