Portable electrochemical microscopy device, kits comprising same and uses thereof

Patent metadata

Field	Value
Publication number	US-11808784-B2
Application number	US-201917258587-A
Country	US
Kind code	B2
Filing date	Jul 5, 2019
Priority date	Jul 9, 2018
Publication date	Nov 7, 2023
Grant date	Nov 7, 2023

Abstract

The invention relates to the field of localized surface analysis, characterization and modification by electrochemistry. It particularly relates to a portable electrochemical microscopy device, to kits comprising such a portable device, and to uses of the portable device and kits. According to the invention, the portable device comprises: a body having a gripping surface for a user and a bearing surface that can be applied to a surface of a substrate to be analyzed; an electrolytic chamber formed in the body and arranged so as to receive an electrolyte, the electrolytic chamber comprising an opening leading to the bearing surface; and a working probe having a distal end arranged in the electrolytic chamber.

First claim

The invention claimed is:

1. 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.

2. The portable device of claim 1 , wherein the working probe is attached to the body, such that the distal end thereof is fixed with respect to the plane passing through the bearing surface.

3. The portable device of claim 1 further comprising a positioning device arranged to enable a movement of the working probe relative to the bearing surface.

4. The portable device of claim 3 , wherein the positioning device includes a movable member and a drive mechanism, the movable member being arranged to bear the working probe and to be capable of being moved in translation with respect to the body along an axis of translation, the drive mechanism being arranged to move the movable member with respect to the body.

5. The portable device of claim 4 , wherein the body of the portable device includes a guide housing, the guide housing and the movable member being arranged so that the movable member is guided in translation with respect to the body.

6. The portable device of claim 4 , wherein the drive mechanism includes a micrometric screw having a reference surface and a movable surface, the micrometric screw being arranged to enable a modification of a distance separating the reference surface from the movable surface, the reference surface being arranged to be rigidly connected to the body and the movable surface being arranged to be rigidly connected to the movable member.

7. The portable device of claim 4 , wherein the movable member includes a housing for receiving the working probe and an attachment member, the receiving housing being arranged to receive a proximal end of the working probe and the attachment member being arranged to attach the working probe to the movable member.

8. The portable device of claim 4 , wherein the positioning device further includes a temporary coupling mechanism arranged to reversibly couple the movable member to the drive mechanism.

9. The portable device of claim 1 , further including at least one additional working probe, each additional working probe having a distal end disposed in the electrolytic chamber.

10. The portable device of claim 1 , wherein the body includes a cylindrical section and a tapered section, the cylindrical section having an outer surface forming a revolving cylinder and the tapered section having an outer surface forming a frustum flaring between a first base, rigidly connected to the cylindrical section, and a second base forming the bearing surface.

11. The portable device of claim 1 , wherein the body includes an electrolyte injection orifice extending between an outer surface of the body and the electrolytic chamber.

12. An electrochemical microscopy kit, which comprises the portable device of claim 1 , filled with an electrolyte, and operating instructions.

13. The kit of claim 12 , wherein the electrolyte includes a gelling agent.

14. A method for analyzing and/or characterizing a surface of a substrate comprising:
filling the electrolytic chamber of the portable device of the kit of claim 12 with an electrolyte;
contacting the bearing surface of the portable device with the surface of the substrate; and
measuring a current flowing through the working probe of the portable device.

15. The electrochemical microscopy kit, which comprises the portable device of claim 1 , a container containing an electrolyte and operating instructions.

16. The portable device of claim 1 , wherein the electrolyte includes a gelling agent.

17. A method for analyzing and/or characterizing a surface of a substrate comprising:
filling the electrolytic chamber of the portable device of claim 1 with an electrolyte;
contacting the bearing surface of the portable device with the surface of the substrate; and
measuring a current flowing through the working probe of the portable device.

Assignees

• Commissariat Energie Atomique
• Centre Nat Rech Scient

Inventors

• Charrier Gaëlle
• Doublet Aurélien
• Deniau Guy
• Cornut Renaud

Classifications

• G01Q60/60 Primary

  SECM [Scanning Electro-Chemical Microscopy] or apparatus therefor, e.g. SECM probes · CPC title

• G01N27/416

  Systems (G01N27/27 takes precedence) · CPC title