Abstract: Implementations of a wearable physical characteristic monitoring (PCM) device can include a substrate including two or more electrical traces, the two or more electrical traces being formed as laser-induced graphene (LIG) in a starch-based material layer, a sensor that provides a signal responsive to physiological characteristics of a patient wearing the PCM device, a processing system that provides physiological characteristics data based on the signal, and a communications system that enables communication of the physiological characteristics data from the PCM device, wherein the two or more electrical traces connect one or more of the sensor, the processing system, and the communications system.

Abstract: A system and method of manufacturing MXene-based coils on textile substrates. The system and method enable wireless charging of embedded devices in textiles, including energy storage, sensors, and wireless charging coils, removing the need for rigid physical connections. The systems manage print content by deposition of MXene ink compositions with a custom-generated coil design comprising specific geometric parameters that are configured to target required performance targets. Such an approach allows for the augmentation of e-textiles with sufficient energy and/or data transmission capacities so as to support the use of a wide range of smart devices and applications.

Abstract: An identification mark and a method for manufacturing the identification mark is disclosed. The method includes providing a block of mycelium and integrating an NIR florescent dye into a surface of the block to define a first pattern in the surface of the block of mycelium. Once the NIR florescent dye is inserted, the NIR florescent dye is allowed to dry. Thereafter, the block of mycelium with dried NIR florescent dye is compressed into a thin sheet of mycelium leather and the compression results in distorting the shape of the first pattern into a second pattern. The created second pattern is the identification mark readable by the NIR camera and an illumination source.

Abstract: Implementations of the present disclosure discloses a system and skin-based sensor platform to monitor biochemical activity of a wearer. The system includes an apparatus for monitoring biochemical activity of a wearer, wherein the apparatus includes a base substrate layer including a carbon-based material having one or more laser induced graphene (LIG) fabricated elements. The one or more LIG fabricated elements include an inductor-capacitor circuit to receive a wireless signal and to provide passive wireless readouts, and one or more sensing circuits electrically coupled to the inductor-capacitor circuit to detect biochemical activity associated with the wearer of the apparatus. The apparatus further includes an adhesive layer provided on a first side of the base substrate layer to provide adhesion to the skin of the wearer, and an encapsulation layer placed on an opposing side of the base substrate layer.

Abstract: Implementations of a wearable physical characteristic monitoring (PCM) device can include a substrate including two or more electrical traces, the two or more electrical traces being formed as laser-induced graphene (LIG) in a starch-based material layer, a sensor that provides a signal responsive to physiological characteristics of a patient wearing the PCM device, a processing system that provides physiological characteristics data based on the signal, and a communications system that enables communication of the physiological characteristics data from the PCM device, wherein the two or more electrical traces connect one or more of the sensor, the processing system, and the communications system.

Abstract: Systems, methods, and devices are directed to providing charge mitigation via a MXene-based conductive pathway on a spacesuit. In one aspect, a system for planetary exploration to provide charge mitigation on an outer surface of the spacesuit comprises a multilayered fabric including a woven layer, wherein the woven layer includes a first side to face a space environment and an opposing side to face a body of a wearer of the spacesuit and a MXene coating layer applied on the opposing side, wherein the MXene coating layer extends through the thickness the woven layer to conductively couple a first location on an exterior surface of the spacesuit with a second location on the exterior surface of the spacesuit.

Abstract: A system and method of manufacturing MXene-based coils on textile substrates. The system and method enable wireless charging of embedded devices in textiles, including energy storage, sensors, and wireless charging coils, removing the need for rigid physical connections. The systems manage print content by deposition of MXene ink compositions with a custom-generated coil design comprising specific geometric parameters that are configured to target required performance targets. Such an approach allows for the augmentation of e-textiles with sufficient energy and/or data transmission capacities so as to support the use of a wide range of smart devices and applications.

Abstract: Packaging devices such as bags, pouches, envelops, containers, and the like, can include an integrated heating system. The packaging devices described herein have multiple potential uses such as for the containment and heating of single-serving meals, drinks, massage oils, masks, body wax, anti-wrinkle eye creams, and the like, to be heated on the go. The packaging devices described herein can also be used for instant heating of food and/or beverages for backcountry use. In some embodiments, the packaging devices use fibrous natural materials (e.g., leaf skeletons and soft biomaterials like chitosan) along with silver nanowires to create completely biodegradable, and reusable self-heating packaging.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for recognizing speech using a spiking neural network acoustic model implemented on a neuromorphic processor are described. In one aspect, a method includes receiving, a trained acoustic model implemented as a spiking neural network (SNN) on a neuromorphic processor of a client device, a set of feature coefficients that represent acoustic energy of input audio received from a microphone communicably coupled to the client device. The acoustic model is trained to predict speech sounds based on input feature coefficients. The acoustic model generates output data indicating predicted speech sounds corresponding to the set of feature coefficients that represent the input audio received from the microphone. The neuromorphic processor updates one or more parameters of the acoustic model using one or more learning rules and the predicted speech sounds of the output data.

Abstract: Springs can provide energy return and have a conductivity that changes in relation to an amount of strain or deformation of the spring. An upper-extremity prosthetic device includes a first coil spring coupled to a first member and a first cantilever spring extending from the first member to a surface adapted to engage with an object. The first coil spring is arranged to absorb energy and to provide energy return in response to movement of the first member. The first coil spring includes a first conductive surface and a second conductive surface separate from the first conductive surface by non-conductive surfaces. The first cantilever spring includes a conductive trace with a plurality of conductive segments arranged on the conductive trace.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for recognizing speech using a spiking neural network acoustic model implemented on a neuromorphic processor are described. In one aspect, a method includes receiving, a trained acoustic model implemented as a spiking neural network (SNN) on a neuromorphic processor of a client device, a set of feature coefficients that represent acoustic energy of input audio received from a microphone communicably coupled to the client device. The acoustic model is trained to predict speech sounds based on input feature coefficients. The acoustic model generates output data indicating predicted speech sounds corresponding to the set of feature coefficients that represent the input audio received from the microphone. The neuromorphic processor updates one or more parameters of the acoustic model using one or more learning rules and the predicted speech sounds of the output data.

Abstract: The present disclosure relates to electronic devices and methods of manufacturing electronic devices. A method of manufacturing a dissolvable electronic device includes forming a dissolvable sheet; applying a self-sintering agent to the dissolvable sheet to form a substrate; and depositing electrically conductive ink onto the substrate in a trace. A method of manufacturing a meltable electronic device includes mixing a conductive material with a melted wax to form a conductive wax mixture in liquid form; molding the conductive wax mixture; and solidifying the conductive wax mixture to obtain the meltable electronic device. A method of manufacturing an edible electronic device includes cutting a layer of conductive material to form a pattern that defines a circuit; applying the layer of conductive material to an edible medium, wherein the edible medium is in liquid or semi-solid form; and solidifying the edible medium to obtain the edible electronic device.

Abstract: Electrical input devices, conductive traces, and microcontroller interface devices can be created in a single print using a multi-material 3D printing process. The devices can include a non-conductive material portion and a conductive material portion. The non-conductive and conductive material portions are integrally formed during a single 3D printing process. For example, a fully functional QWERTY keyboard, ready to receive a microcontroller, can be multi-material 3D printed using the techniques described herein.

Abstract: Packaging devices such as bags, pouches, envelops, containers, and the like, can include an integrated heating system. The packaging devices described herein have multiple potential uses such as for the containment and heating of single-serving meals, drinks, massage oils, masks, body wax, anti-wrinkle eye creams, and the like, to be heated on the go. The packaging devices described herein can also be used for instant heating of food and/or beverages for backcountry use. In some embodiments, the packaging devices use fibrous natural materials (e.g., leaf skeletons and soft biomaterials like chitosan) along with silver nanowires to create completely biodegradable, and reusable self-heating packaging.