<p>➀ Researchers from Osaka University have developed a nanogate that can be electrically controlled to open or close, suitable for applications such as sensing and controlled chemical reactions.</p><p>➁ The nanogate consists of a single nanoscale pore within a silicon nitride membrane, and its behavior is influenced by the applied voltage and the composition of solutions on either side.</p><p>➂ The nanogate demonstrates potential for biomolecule detection, such as DNA, and has the ability to finely control pore size using applied voltage.</p>