Portable electrochemical microscopy device, kits comprising same and uses thereof

A portable electrochemical microscopy device, comprising:

• an elongated body having a first end, a second end positioned opposite to the first end with respect to a longitudinal axis of the elongated body, a gripping surface, and a planar bearing surface, the gripping surface configured to be handled by a user and the bearing surface being arranged at the second end of the elongated body, the bearing surface configured to bear on a surface of a substrate to be analyzed;
• an electrolytic chamber formed in the body, arranged to receive an electrolyte, the electrolytic chamber including a chamber first end located within the elongated body and a chamber second end opposite to the chamber first end, the chamber second end being coplanar with the second end of the elongated body and coplanar with the bearing surface, an opening of the electrolytic chamber being coplanar with the chamber second end such that the opening of the electrolytic chamber is coplanar with the bearing surface;
• a receiving housing formed within the elongated body;
• and
• a working probe extending through the receiving housing and having a distal end disposed in the electrolytic chamber, the working probe being arranged such that the distal end is located at a predetermined distance from a plane passing through the bearing surface,
• wherein the elongated body has a first diameter, the electrolytic chamber has a second diameter, and the receiving housing has a third diameter, and wherein the first diameter, second diameter and third diameter are different from each other.