Double-Barrel Nanoprobe (IMAGE) Kanazawa University Caption The operation of the double-barrel nanoprobe for simultaneous SICM imaging and pH measurement. Courtesy of Nature Communications Credit Kanazawa University Usage Restrictions The image may only be used with appropriate caption and credit. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.