Granted Patent
B2
US 12,201,741 · App. 17/022,004 · Granted Jan 21, 2025
Composites and devices for interfacing electronics to biological tissue
A61L24/0094A61B5/259A61L24/001A61L24/08C08G61/126C08L5/00C08L5/08C08L81/02C09D165/00C09J105/00A61B5/25A61B2562/0217C08G2261/11C08G2261/1424C08G2261/3223C08G2261/794C08L2203/02
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Abstract
Composites, are provided, the composites comprising: mixed conducting particles; and an ion conducting scaffolding matrix. In some embodiments, the mixed conducting particles are made from poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate). In some embodiments, the ion conducting scaffolding matrix includes a chitosan (CS)-based polymer. In some embodiments, devices are provided, the devices comprising: a composite comprising mixed conducting particles and an ion conducting scaffolding matrix; and three electrodes, wherein: each of the three electrodes is in contact with the composite; a first pair of the three electrodes are on opposite sides of the composite and are a distance h apart; a second pair of the three electrodes are on a same side of the composite and are a distance d 1 apart; a particle size of the mixed conducting particles is between h and d 1 ; a mean-free-path of the mixed conducting particles is less than d 1 ; and the composite behaves like an anisotropic conductor.
Claims (36)
1. A device comprising:
a composite, comprising:
particles that are formed from a conducting polymer; and
an ion conducting scaffolding matrix, wherein the ion conducting scaffolding matrix is phase separated from the particles; and
three electrodes, wherein: each of the three electrodes is in contact with the composite; a first pair of the three electrodes are on opposite sides of the composite and are a distance h apart; a second pair of the three electrodes are on a same side of the composite and are a distance d 1 apart; a particle size of the particles is between h and d 1 ; a mean-free-path of the particles is less than d 1 ; and the composite behaves like an anisotropic conductor.
2. A device comprising:
a composite, comprising:
particles that are formed from a conducting polymer; and
an ion conducting scaffolding matrix, wherein the ion conducting scaffolding matrix is phase separated from the particles; and
three electrodes, wherein: each of the three electrodes is in contact with the composite; the three electrodes are on a same side of the composite; a first pair of the three electrodes are a distance d 1 apart; a second pair of the three electrodes are a distance d 2 apart, where d 2 is greater than d 1 ; a particle size of the particles is between d 1 and d 2 ; and the composite behaves like an ionic transistor.
3. A device containing the composite of claim 1 , further comprising:
a composite, comprising:
particles that are formed from a conducting polymer; and
an ion conducting scaffolding matrix, wherein the ion conducting scaffolding matrix is phase separated from the particles; and
three electrodes, wherein: each of the three electrodes is in contact with the composite; the three electrodes are on a same side of the composite; a first pair of the three electrodes are a distance d 1 apart; a second pair of the three electrodes are a distance d 2 apart, where d 2 is greater than d 1 ; and the composite behaves like a resistor, and wherein at least one of:
a particle size of the particles is greater than d 2 ; and a mean-free-path of the particles is less than d 1 .
4. A device containing the composite of claim 1 , further comprising:
a composite, comprising:
particles that are formed from a conducting polymer; and
an ion conducting scaffolding matrix, wherein the ion conducting scaffolding matrix is phase separated from the particles; and
three electrodes, wherein: each of the three electrodes is in contact with the composite; the three electrodes are on a same side of the composite; a first pair of the three electrodes are a distance d 1 apart; a second pair of the three electrodes are a distance d 2 apart, where d 2 is greater than di; a particle size of the particles is between d 1 and d 2 ; a mean-free-path of the particles is between d 1 and d 2 ; and the composite behaves like an independently gated ionic transistor.
5. A device containing the composite of claim 1 , further comprising:
a composite, comprising:
particles that are formed from a conducting polymer; and
an ion conducting scaffolding matrix, wherein the ion conducting scaffolding matrix is phase separated from the particles; and
three electrodes, wherein: each of the three electrodes is in contact with the composite; the three electrodes are on a same side of the composite; a first pair of the three electrodes are a distance d 1 apart; a second pair of the three electrodes are a distance d 2 apart, where d 2 is greater than d 1 ; a particle size of the particles is less than d 1 ; a mean-free-path of the particles is between d 1 and d 2 ; and the composite behaves like a diode.
6. The device of claim 5 , wherein the particles are made from poly (3,4-ethylenedioxythiophene)-poly (styrenesulfonate).
7. The device of claim 5 , wherein the ion conducting scaffolding matrix includes a chitosan (CS)-based polymer.
8. The device of claim 1 , wherein the particles are made from poly (3,4-ethylenedioxythiophene)-poly (styrenesulfonate).
9. The device of claim 1 , wherein the ion conducting scaffolding matrix includes a chitosan (CS)-based polymer.
10. The device of claim 2 , wherein the particles are made from poly (3,4-ethylenedioxythiophene)-poly (styrenesulfonate).
11. The device of claim 2 , wherein the ion conducting scaffolding matrix includes a chitosan (CS)-based polymer.
12. The device of claim 3 , wherein the particles are made from poly (3,4-ethylenedioxythiophene)-poly (styrenesulfonate).
13. The device of claim 3 , wherein the ion conducting scaffolding matrix includes a chitosan (CS)-based polymer.
14. The device of claim 4 , wherein the particles are made from poly (3,4-ethylenedioxythiophene)-poly (styrenesulfonate).
15. The device of claim 4 , wherein the ion conducting scaffolding matrix includes a chitosan (CS)-based polymer.
Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded Oct 26, 2022
From: KHODAGHOLY, DION; JASTRZEBSKA-PERFECT, PATRICIA
To: THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK
Reel/Frame 061549/0613 →
Continuity (2)
Provisional Application
62900633
· Sep 15, 2019
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