US 11,719,585 B2
Fiber-based composite with fracture-induced mechano-electrical sensitivity
Jae-Hyun Chung, Seattle, WA (US); Jinyuan Zhang, Seattle, WA (US); Dayong Gao, Seattle, WA (US); and Jinkyu Yang, Seattle, WA (US)
Assigned to University of Washington, Seattle, WA (US)
Appl. No. 16/768,373
Filed by UNIVERSITY OF WASHINGTON, Seattle, WA (US)
PCT Filed Dec. 3, 2018, PCT No. PCT/US2018/063645
§ 371(c)(1), (2) Date May 29, 2020,
PCT Pub. No. WO2019/109085, PCT Pub. Date Jun. 6, 2019.
Claims priority of provisional application 62/593,774, filed on Dec. 1, 2017.
Prior Publication US 2020/0370972 A1, Nov. 26, 2020
Int. Cl. C01B 32/158 (2017.01); G01L 1/18 (2006.01); G01L 1/14 (2006.01); A61B 5/11 (2006.01); A61B 5/00 (2006.01)
CPC G01L 1/18 (2013.01) [G01L 1/142 (2013.01); A61B 5/1125 (2013.01); A61B 5/682 (2013.01); A61B 5/6821 (2013.01); A61B 5/6823 (2013.01); A61B 5/6826 (2013.01)] 20 Claims
OG exemplary drawing
 
19. A method of making a sensor comprising applying a unidirectional tensile force to a precursor composite substrate thereby inducing a fracture to form a fractured composite substrate, wherein the precursor composite substrate comprises:
a template material comprising a plurality of insulating fibers;
a plurality of carbon nanotubes bonded to the insulating fibers forming a nanotube coating on the insulating fibers;
a first electrode coupled to the nanotube coating on one side of the fracture; and
a second electrode coupled to the nanotube coating on an opposite side of the fracture; and
wherein the plurality of insulating fibers form a plurality of crossbar junctions at a site of the fracture.