Technologies for fiber nanotechnology

Patent metadata

Field	Value
Publication number	US-12350385-B2
Application number	US-202017771293-A
Country	US
Kind code	B2
Filing date	Nov 2, 2020
Priority date	Oct 31, 2019
Publication date	Jul 8, 2025
Grant date	Jul 8, 2025

Abstract

Technologies for fibers with nanotechnology is disclosed. In the illustrative embodiment, a preform is 3D printed with one or more sacrificial cores and one or more hollow channels. The preform is drawn into a fiber, and one or more metal core(s) is inserted into the hollow channel during the fiber draw. The fiber is then heated, breaking up the sacrificial cores into balls through capillary action. The fiber can be etched, exposing the balls made up of the sacrificial cores. The balls can be selectively etched, exposing the metal core(s) of the fiber. Additional embodiments are disclosed.

First claim

The invention claimed is:

1. A fiber comprising:
a first core extending along an axis of the fiber;
a second core extending along the axis of the fiber different from the first core;
a cladding surrounding the first core and the second core;
wherein the cladding has a plurality of outlets spaced-apart along the axis of the fiber, wherein each outlet of the plurality of outlets exposes the first core or the second core to an environment surrounding the fiber,
wherein the first core and the second core generate an electric field in the environment surrounding the fiber.

2. The fiber of claim 1 , wherein the first core and the second core generate the electric field in the environment surrounding the fiber based on an electrochemical interaction between the first core and the second core.

3. The fiber of claim 2 , wherein the first core is zinc and the second core is silver.

4. The fiber of claim 1 , wherein an external voltage source is applied across the first core and the second core to generate the electric field.

5. The fiber of claim 1 , wherein the cladding is polycarbonate.

6. The fiber of claim 1 , wherein the fiber is used as a suture in a wound of a patient.

7. The fiber of claim 1 , wherein the electric field is at least ten millivolts per millimeter.

8. The fiber of claim 1 , wherein the first core is formed of a first material, the second core is formed of a second material different from the first material of the first core, and wherein the electric field is generated between the first core and the second core in the environment surrounding the fiber based on an electrochemical interaction between the first core and the second core.

9. The fiber of claim 8 , wherein the first material of the first core is zinc and the second material of the second core is silver.

10. The fiber of claim 8 , wherein the cladding is polycarbonate.

11. The fiber of claim 8 , wherein the fiber is used as a suture in a wound of a patient.

12. The fiber of claim 8 , wherein the electric field is at least ten millivolts per millimeter.

13. The fiber of claim 8 , wherein the first core is circumferentially enclosed by the cladding at axial positions offset from the plurality of outlets, and wherein the second core is circumferentially enclosed by the cladding at the axial positions offset from the plurality of outlets.

14. The fiber of claim 8 , wherein the first core, the second core, and the plurality of outlets are aligned with one another relative to a plane extending through the fiber.

15. The fiber of claim 8 , wherein the plurality of outlets are spaced-apart along the axis with a preset distance between each of the plurality of outlets.

16. The fiber of claim 1 , wherein the first core is circumferentially enclosed by the cladding at axial positions offset from the plurality of outlets, and wherein the second core is circumferentially enclosed by the cladding at the axial positions offset from the plurality of outlets.

Assignees

• Univ Indiana Trustees

Inventors

• Gumennik Alexander
• Van Der Elst Louis Alexandre
• Gokce Merve
• Sen Chandan K

Classifications

• H01B7/048

  for implantation into a human or animal body, e.g. pacemaker leads · CPC title

• D10B2509/04

  Sutures · CPC title

• D10B2401/16

  antistatic; conductive · CPC title

• D10B2101/20

  Metallic fibres · CPC title

• D06M2101/16

  Synthetic fibres, other than mineral fibres · CPC title