The present invention relates to a stretchable nano-mesh bioelectrode having excellent air permeability and durability. Specifically, the stretchable nano-mesh bioelectrode includes a nanofiber elastic mesh sheet including polymer nanofibers formed by electrospinning; and a metal nanowire network having a portion impregnated onto the nanofiber elastic mesh sheet.

Embodiments described herein relate generally to wearable electronic biosensing garments. In some embodiments, an apparatus comprises a biosensing garment and a plurality of electrical connectors that are mechanically fastened to the biosensing garment. A plurality of printed electrodes is disposed on the biosensing garment, each being electrically coupled, via a corresponding conductive pathway, to a corresponding one of the plurality of electrical connectors. The apparatus can further include an elongate member including a conductive member that is coupled to a plurality of elastic members in a curved pattern and that is configured to change from a first configuration to a second configuration as the elongate member stretches. The change from the first configuration to the second configuration can result in a change of inductance of the conductive member.

A contact sensor and system for incorporation within clothing and other wearable items to monitor activity at a body surface. The sensor includes a contact membrane having a body surface contacting area and one or more base layers of knitted fabric. The base layer(s) is thicker over an area congruent with the body surface contacting area of the contact membrane. As a result, the contact membrane is urged into the forming of a raised outer surface for projection against a body surface.

A bioelectrode (1) includes: a main electrode film (3); a nonpolarizable electrode film (4) disposed on one surface of the main electrode film (3); and a conductive gel film (5) disposed on the opposite surface of the nonpolarizable electrode film (4) from the main electrode film. The nonpolarizable electrode film (4) is constituted by an electrode film that contains supported silver chloride, the supported silver chloride including (i) a support and (ii) silver chloride supported on the support.

In a method of manufacturing a biomimetic highly stretchable conductive dry adhesive patch, a mold including a plurality of holes is provided by etching a semiconductor substrate including an insulation layer based on a footing effect. A conductive polymer composite is provided by dispersing mixed conductive fillers in a liquid elastomer. The mixed conductive fillers are formed by mixing one-dimensional conductive fillers and two-dimensional conductive fillers. The conductive polymer composite is applied on the mold such that the conductive polymer composite is injected into the plurality of holes. A conductive dry adhesive structure including a plurality of micropillars corresponding to the plurality of holes is obtained by performing a post-treatment on the conductive polymer composite applied on the mold and by removing the mold. Each of the plurality of micropillars includes a body portion and a tip portion. The tip portion has a spatula shape, is formed on the body portion, and has an area larger than that of the body portion in a plan view.

A bio electrode and a method of forming the same are provided. The bio electrode comprises a first core-shell nanowire/polymer composite comprising a first core-shell nanowire and a first polymer. The method of forming a bio electrode comprises a step of forming a core-shell nanowire by carrying out epitaxial growth of a biocompatible metal on a surface of a core comprising a conductive metal.

An electronic device is provided. The electronic device includes a housing including at least one electronic component, and a pad structure coupled with the housing, and attached to a user body. The pad structure includes a first adhesive material having an adhesive strength at which the electronic device holds attachment in response to lack of existing water or humidity, and a second adhesive material abutting the first adhesive material and having an adhesive strength at which the electronic device holds the attachment in response to existing water or humidity.

A sweat sensor, includes a sweat-guiding electrode layer including an insulating layer, a conductive electrode provided in the insulating layer, and a first through hole, wherein the first through hole goes through the insulating layer and the conductive electrode; an adhesive layer provided on the insulating layer, wherein the adhesive layer is provided with a second through hole communicated with the first through hole; and a water-absorbing diffusion layer provided on the adhesive layer, wherein the water-absorbing diffusion layer covers the second through hole. A sweat sensing system is further provided with a plurality of sweat sensors. The sweat sensor simultaneously and continuously detects a sweat volume and an electrolyte concentration in real time, and prevents the mixture of old and new sweat from interfering with the detection of the electrolyte concentration.

Embodiments in accordance with the present disclosure are directed to an apparatus comprising an intra-body electrode, and a poly(3,4-ethylenedioxythiophene) (PEDOT)-based coating. The PEDOT-based coating is on a surface of the intra-body electrode. And, the PEDOT-based coating includes a PEDOT-backbone doped with counter ions and cross-linked to a photoreactive polymer and a photoreactive-hydrophilic polymer.

Embodiments described herein relate generally to wearable electronic biosensing garments. In some embodiments, an apparatus comprises a biosensing garment and a plurality of electrical connectors that are mechanically fastened to the biosensing garment. A plurality of printed electrodes is disposed on the biosensing garment, each being electrically coupled, via a corresponding conductive pathway, to a corresponding one of the plurality of electrical connectors. The apparatus can further include an elongate member including a conductive member that is coupled to a plurality of elastic members in a curved pattern and that is configured to change from a first configuration to a second configuration as the elongate member stretches. The change from the first configuration to the second configuration can result in a change of inductance of the conductive member.